This dataset contains weekly volatile organic compounds (VOCs) measurements from the Kirby Misperton site. British Geological Survey (BGS), the universities of Birmingham, Bristol, Liverpool, Manchester and York and partners from Public Health England (PHE) and the Department for Business, Energy and Industrial Strategy (BEIS), are conducting an independent environmental baseline monitoring programme near Kirby Misperton, North Yorkshire and Little Plumpton, Lancashire. These are areas where planning permission has been granted for hydraulic fracturing. The monitoring allows the characterisation of the environmental baseline before any hydraulic fracturing and gas exploration or production takes place in the event that planning permission is granted. The investigations are independent of any monitoring carried out by the industry or the regulators, and information collected from the programme will be made freely available to the public. ----------------------------------------------------------------------------------------------- If you use these data, please note the requirement to acknowledge use. Use of data and information from the project: "Science-based environmental baseline monitoring associated with shale gas development in the Vale of Pickering, Yorkshire (including supplementary air quality monitoring in Lancashire)", led by the British Geological Survey Permission for reproduction of data accessed from the CEDA website is granted subject to inclusion of the following acknowledgement: "These data were produced by the Universities of Manchester and York (National Centre for Atmospheric Science) in a collaboration with the British Geological Survey and partners from the Universities of Birmingham, Bristol and Liverpool and Public Health England, undertaking a project grant-funded by the Department for Energy & Climate Change (DECC), 2015-2016. " ----------------------------------------------------------------------------------------------------------

🇺🇸 미국

IntroductionVolatile organic compounds (VOCs) are compounds that have a high vapor pressure and low water solubility, which are emitted from solid or liquid sources. Emission sources indoors include furniture and building materials, cleaning and cooking activities, consumer products and office equipment. Among the various VOCs, some of them may have short- and/or long-term adverse health effects. Therefore, it is important to understand the VOC compositions that people are exposed to in indoor and outdoor environments. However, accurate monitoring of VOCs is not available for many researchers and the public. Chemical Insights, a unit of UL Research Institutes, has conducted research initiatives on characterizing VOCs in indoor and outdoor environments in the US with collaboration with US EPA. To increase data transparency and share useful information, these research data are made available to stakeholders such as researchers, educators, and general public who may need environmental VOC data.MethodsThe methods of sample collection and analysis have been developed and validated previously. VOCs were collected on Tenax® TA (60/80 mesh) sorbent tubes and then thermally desorbed and analyzed by thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) following the US EPA Methods TO-171 and TO-12. Individual VOCs were quantified using multi-point calibration curves with authentic standards if available. Total VOC (TVOC) was the sum of toluene equivalent response in C6 to C16 range. Low-molecular-weight carbonyls (aldehydes) samples were collected on 2,4-dinitrophenylhydrazine (DNPH) cartridges and analyzed using high-performance liquid chromatography (HPLC) following EPA Method TO-11A3. The laboratory quality program enables the accuracy of the identification and quantification of analyzed VOCs and aldehydes. This campaign recruited 6 homes for July 2022 sampling4 and 38 homes for September and October 2023 sampling5 in Tulare, California. Details of the study and sampling plan can be found in published technical reports.4,5DatabaseThis database includes all detected VOCs with their concentrations from the US campaign. This database provides information on indoor and outdoor VOC compositions and levels. The studied region in California is a rural, agriculturally intensive county that is frequently impacted by wildfire smoke. Wildfire brings a mixture of hazardous contaminants due to combustion and photoreaction, which may penetrate indoors and elevate the VOC levels. This database provides information on indoor and outdoor VOC compositions and levels without the impact of wildfire. This database can be used as a baseline to compare with the air quality impacted by wildfire or wildland urban interface (WUI) activities. It also provides source information on indoor and outdoor VOCs, such as those related to agriculture, cleaning and cooking activities, which can be used for further research topics. This data is beneficial for a wide range of stakeholders, including consumers, manufacturers, researchers, policymakers, educators, and the public. Please see ULRI_US_NOTE file for details of data dictionary.Data portalThe data portal provides an interactive way of viewing and screening data by selecting the parameters of interest. Users can download the data as needed.ReferencesUS EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Edition Compendium Method TO-17 Determination of Volatile Organic Compounds in Ambient Air Using Active Sampling Onto Sorbent Tubes, 1999.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air - Second Edition. Compendium Method TO-1 Method for the Determination of Volatile Organic Compounds (VOCs) in Ambient Air Using Tenax® Adsorption and Gas Chromatography/Mass Spectrometry (GC/MS), 1999.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Edition Compendium Method TO-11A Determination of Formaldehyde in Ambient Air Using Adsorbent Cartridge Followed by High Performance Liquid Chromatography (HPLC), 1999.Chemical Insights Research Institute. Final Report: The Effect of Wildfires and the Wildland Urban Interface (WUI) on Indoor Air Quality and Health in Residential Homes; report; UL Research Institutes, 2025. https://doi.org/10.60752/102376.28515788.v1.Chemical Insights Research Institute. Pilot Study: The Effect of Wildfires and the Wildland Urban Interface (WUI) on Indoor Air Quality and Health in Residential Homes; UL Research Institutes, 2023. https://chemicalinsights.org/wp-content/uploads/2023/08/Chemical-Insights_Indoor-Air-Quality_Report-330_final.pdf (accessed 2025-04-24).

IntroductionVolatile organic compounds (VOCs) are compounds that have a high vapor pressure and low water solubility, which are emitted from solid or liquid sources. Furniture and building materials are a major source of indoor VOCs, which contribute to the background VOC levels at normal room conditions, and occupants are exposed to these VOCs when indoors. Among the various VOCs, some of them may have short- and/or long-term adverse health effects. Therefore, it is important to understand the VOC emissions from common indoor sources. However, accurate monitoring of VOCs is not available for many researchers and the public. Chemical Insights, a unit of UL Research Institutes, has conducted a research initiative on characterizing VOCs emissions from upholstered furniture during normal use. To increase data transparency and share useful information, these research data are made available to stakeholders such as researchers, educators, and general public who may need indoor VOC source data.MethodsFour types of upholstered chairs with different fire-resistant technologies were selected. Emissions from chairs were characterized using validated exposure chamber; an agitation robot was used to mimic a person sitting on the chair.1,2 VOCs were collected on Tenax® TA (60/80 mesh) sorbent tubes and then thermally desorbed and analyzed by thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) following the US EPA Methods TO-173 and TO-14. Individual VOCs were quantified using multi-point calibration curves with authentic standards if available. Total VOC (TVOC) was the sum of toluene equivalent response in C6 to C16 range. Low-molecular-weight carbonyls (aldehydes) samples were collected on 2,4-dinitrophenylhydrazine (DNPH) cartridges and analyzed using high-performance liquid chromatography (HPLC) following EPA Method TO-11A5. The laboratory quality program enables the accuracy of the identification and quantification of analyzed VOCs and aldehydes. Emission rate of each detected VOC was calculated in unit of µg/h. Details of sampling and analysis methods can be found in peer-reviewed publications.1,2DatabaseThis database includes VOC emissions from upholstered chairs and cushions using different flame retardant technologies that are typically found in residential and commercial buildings. This data provides VOC emission information from different upholstered chair types. Homeowners, builders, designers and facility managers can gain knowledge on VOC emission levels from these furniture sources, which will further guide material selection, planning and design. Please see ULRI_CHAIR_NOTE file for details of data dictionary.Data portalThe data portal provides an interactive way of viewing and screening data by selecting the parameters of interest. Users can download the data as needed.ReferencesDavis, A.; Ryan, P. B.; Cohen, J. A.; Harris, D.; Black, M. Chemical Exposures from Upholstered Furniture with Various Flame Retardant Technologies. Indoor Air 2021, 31 (5), 1473–1483. https://doi.org/10.1111/ina.12805.Harris, D.; Davis, A.; Ryan, P. B.; Cohen, J.; Gandhi, P.; Dubiel, D.; Black, M. Chemical Exposure and Flammability Risks of Upholstered Furniture. Fire and Materials 2021, 45 (1), 167–180. https://doi.org/10.1002/fam.2907.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Edition Compendium Method TO-17 Determination of Volatile Organic Compounds in Ambient Air Using Active Sampling Onto Sorbent Tubes, 1999.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air - Second Edition. Compendium Method TO-1 Method for the Determination of Volatile Organic Compounds (VOCs) in Ambient Air Using Tenax® Adsorption and Gas Chromatography/Mass Spectrometry (GC/MS), 1999.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Edition Compendium Method TO-11A Determination of Formaldehyde in Ambient Air Using Adsorbent Cartridge Followed by High Performance Liquid Chromatography (HPLC), 1999.

This data release includes tables and time-series plots of results for volatile organic compounds (VOCs) analyzed in samples of groundwater used for public supply that were collected by the USGS National Water-Quality Assessment (NAWQA) Project and the California State Water Resources Control Board’s Groundwater Ambient Monitoring and Assessment Program Priority Basin Project (GAMA-PBP) during 2013-19; results for associated quality-control samples also are included. All samples were analyzed by the USGS National Water Quality Laboratory (NWQL) using laboratory schedules 4436 and 4437. The table of groundwater data includes VOC results as reported by the laboratory, along with results that represent the application of censoring approaches described in the metadata file and associated journal article. The other seven tables included in this data release contain VOC results for the following types of quality-control samples: field blanks and replicates collected at field sites; laboratory blanks, reagent spikes, and matrix spikes prepared by the NWQL; and third-party blind blanks and blind spikes prepared by the USGS Quality Systems Branch. The tables of VOC results for matrix spikes and field replicates include the paired groundwater results. For convenience, plots are provided of reported VOC detections and concentrations in groundwater samples, field blanks, and laboratory blanks for individual compounds by analysis date. Plots also are provided of recoveries for laboratory reagent spikes, laboratory matrix spikes, and third-party blind spikes for individual VOCs by analysis date. This data release includes 8 tables and 2 series of laboratory results plots: Table1_GroundwaterData2013_2019.csv: VOC results for samples collected by NAWQA and GAMA-PBP of groundwater used for public supply, 2013-19. This table includes VOC results as reported by the laboratory, along with results that represent the application of censoring approaches described in the associated journal article. Results that were rejected or censored for data analysis for reasons described in the metadata document and in the associated journal article are identified using attribute values described in the process steps for this table. Table2_FieldBlankData2013_2019.csv: VOC results for field blanks collected at applicable groundwater sites by NAWQA and GAMA-PBP, 2013-19. Results that were rejected for data analysis for reasons described in the metadata document and in the associated journal article are identified using attribute values described in the process steps for this table. Table3_MatrixSpikeData2013_2019.csv: VOC results for samples collected for laboratory matrix spikes at applicable groundwater sites by NAWQA and GAMA-PBP, 2013-19. Results of paired groundwater samples are included. Results that were rejected for data analysis for reasons described in the metadata document and in the associated journal article are identified using attribute values described in the process steps for this table. Fields needed to calculate spike recovery as described in the data processing steps of the metadata file are included. Table4_FieldRepData2013_2019.csv: VOC results for field replicates collected at groundwater sites by NAWQA and GAMA-PBP, 2013-19. Results of paired groundwater samples are included. Fields needed to calculate variability in detection and (or) concentration as described in the data processing steps of the metadata file are included. Table5_LabBlankData2013_2019.csv: VOC results for laboratory blanks prepared by the National Water Quality Laboratory, 2013-19. Table6_LabReagentSpikeData2013_2019.csv: VOC results for laboratory reagent spikes prepared by the National Water Quality Laboratory, 2013-19. Table7_QSBBlindBlankData2016_2019.csv: VOC results for third-party blind blanks prepared by the Quality Systems Branch, 2016-19. Table8_QSBBlindSpikeData2013_2019.csv: VOC results for third-party blind spikes prepared by the Quality Systems Branch, 2013-19. Results that were rejected for data analysis for reasons described in the metadata document are flagged. PlotGroup1_GW_Blank_TimeSeries.pdf: Plots of laboratory-reported (uncensored) detections and concentrations in groundwater samples (Table 1), field blanks (Table 2), laboratory blanks (Table 5), and third-party blind blanks (Table 7) for individual VOCs by analysis date, showing the frequency, timing, and magnitude of detections among these sample types. Nondetections are plotted as open circles at the standard laboratory reporting limit in effect at the time of analysis (identified on each graph) or, if applicable, at the raised reporting limit specified for an individual sample. PlotGroup2_SpikeTimeSeries.pdf: Plots of recoveries for laboratory reagent spikes (Table 6), laboratory matrix spikes (Table 3), and third-party blind spikes (Table 8) for individual VOCs by analysis date, illustrating the range of typical recoveries. Kernel regression smoothing curves are included to illustrate general changes in recovery through time. False-negative results from third-party blind samples also are shown.

This dataset contains weekly volatile organic compounds (VOCs) measurements from the Little Plumpton site. British Geological Survey (BGS), the universities of Birmingham, Bristol, Liverpool, Manchester and York and partners from Public Health England (PHE) and the Department for Business, Energy and Industrial Strategy (BEIS), are conducting an independent environmental baseline monitoring programme near Kirby Misperton, North Yorkshire and Little Plumpton, Lancashire. These are areas where planning permission has been granted for hydraulic fracturing. The monitoring allows the characterisation of the environmental baseline before any hydraulic fracturing and gas exploration or production takes place in the event that planning permission is granted. The investigations are independent of any monitoring carried out by the industry or the regulators, and information collected from the programme will be made freely available to the public. ----------------------------------------------------------------------------------------------- If you use these data, please note the requirement to acknowledge use. Use of data and information from the project: "Science-based environmental baseline monitoring associated with shale gas development in the Vale of Pickering, Yorkshire (including supplementary air quality monitoring in Lancashire)", led by the British Geological Survey Permission for reproduction of data accessed from the CEDA website is granted subject to inclusion of the following acknowledgement: "These data were produced by the Universities of Manchester and York (National Centre for Atmospheric Science) in a collaboration with the British Geological Survey and partners from the Universities of Birmingham, Bristol and Liverpool and Public Health England, undertaking a project grant-funded by the Department for Energy & Climate Change (DECC), 2015-2016. " ----------------------------------------------------------------------------------------------------------

This data set is a subset of the U.S. Environmental Protection Agency (USEPA) Envirofacts point data set which includes facilities included in the the Toxic Release Inventory. Information on total pounds of volatile organic compounds released in 1995 (from USEPA's Toxic Release Inventory CD-ROM) has been included.

The Natural Volatile Organic Compounds (NVOC) emissions data sets include isoprene (isop90mn1.1a), terpene (terp90mn1.1a), and other natural volatile organic compounds, with a lifetime of less than one day (nvoc90mn1.1a). All of the data sets are on a monthly basis for the year 1990 on a one degree latitude by 1 degree longitude grid. NVOC emissions include isoprene, monoterpenes, other reactive VOC (ORVOC), and other VOC (OVOC). VOCs are emitted into the atmosphere from natural sources in marine and terrestrial environments. Natural sources of VOC emissions to the atmosphere include marine and fresh water, soil and sediments, microbial decomposition of organic matter, geological hydrocarbon reservoirs, plant foliage and woody material, and enhanced emissions from vegetation during harvesting or burning. NVOCs are important in tropospheric chemistry and in the global carbon cycle. VOC emissions are critical in controlling the OH concentration of the troposphere and so may play a major role in determining the growth rates of atmospheric CH4 (methane) and CO (carbon monoxide) concentrations. Several emissions inventories of VOCs have been published and they indicate that annual natural emissions of isoprene and monoterpenes exceed anthropogenic VOC emissions on a global scale. Each line of data in the GEIA inventory consists of an integer grid number and real specie values for the temporal resolution of the data (one month). Each file contains at most 360 x 180 data lines.

IntroductionE-cigarettes or electronic nicotine delivery systems (ENDS) have gained popularity especially among young adults and adolescents, even though they are promoted as a safe alternative of traditional cigarettes, studies have found that e-cigarettes generate aerosols that contain harmful components.1–4 Among the complex emission mixtures, volatile organic compounds (VOCs) can be hazardous and may induce short- and/or long-term adverse health effects. Therefore, it is important to understand the VOC emissions from vaping activities, which sets a foundation for assessing the health impacts of ENDS users and bystanders. Chemical Insights, a unit of UL Research Institutes, has conducted a research initiative on characterizing VOC emissions from different types of e-cigarettes. To increase data transparency and share useful information, these research data are made available to stakeholders such as researchers, educators, and general public who may need VOC emission data.MethodsVOC emissions from each puffing activity were evaluated using validated exposure chambers which operated at static status; mainstream emissions from e-cigarettes were generated using a custom-made automatic device that controls the puffing topography.1,5 VOCs were collected on Tenax® TA (60/80 mesh) sorbent tubes and then thermally desorbed and analyzed by thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) following the US EPA Methods TO-176 and TO-17. Individual VOCs were quantified using multi-point calibration curves with authentic standards if available. Total VOC (TVOC) was the sum of toluene equivalent response in C6 to C16 range. Low-molecular-weight carbonyls (aldehydes) samples were collected on 2,4-dinitrophenylhydrazine (DNPH) cartridges and analyzed using high-performance liquid chromatography (HPLC) following EPA Method TO-11A8. The laboratory quality program enables the accuracy of the identification and quantification of analyzed VOCs and aldehydes. Emission factor of each VOC was calculated using the measurement data and normalized to puff numbers.1,3DatabaseThis database provides VOC emission profiles from popular e-cigarettes that are available in the market, including pod types, mod types, and disposable types, with various e-liquid flavors. This database can be used as generic information to learn the facts of vaping. In addition, this primary emission information can be used for further health-related studies and estimating second-hand exposure. Please see ULRI_ECIG_NOTE file for details of data dictionary.Data portalThe data portal provides an interactive way of viewing and screening data by selecting the parameters of interest. Users can download the data as needed.ReferencesJeon, J.; He, X.; Shinde, A.; Meister, M.; Barnett, L.; Zhang, Q.; Black, M.; Shannahan, J.; Wright, C. The Role of Puff Volume in Vaping Emissions, Inhalation Risks, and Metabolic Perturbations: A Pilot Study. Sci Rep 2024, 14 (1), 18949. https://doi.org/10.1038/s41598-024-69985-1.He, X.; Meister, M.; Jeon, J.; Shinde, A.; Zhang, Q.; Chepaitis, P.; Black, M.; Shannahan, J.; Wright, C. Multi-Omics Assessment of Puff Volume-Mediated Salivary Biomarkers of Metal Exposure and Oxidative Injury Associated with Electronic Nicotine Delivery Systems. Environmental Health Perspectives 2025, 133 (1), 017005. https://doi.org/10.1289/EHP14321.Jeon, J.; Zhang, Q.; Chepaitis, P. S.; Greenwald, R.; Black, M.; Wright, C. Toxicological Assessment of Particulate and Metal Hazards Associated with Vaping Frequency and Device Age. Toxics 2023, 11 (2), 155. https://doi.org/10.3390/toxics11020155.He, X.; Meister, M.; Jeon, J.; Alqahtani, S.; Cushenan, P.; Weaver, S.; Luo, R.; Black, M.; Shannahan, J.; Wright, C. Unveiling Oral Health Impacts of Vaping in African Americans through Untargeted Metabolomics and Proteomics. Environ. Health 2025. https://doi.org/10.1021/envhealth.4c00276.Zhang, Q.; Jeon, J.; Goldsmith, T.; Black, M.; Greenwald, R.; Wright, C. Characterization of an Electronic Nicotine Delivery System (ENDS) Aerosol Generation Platform to Determine Exposure Risks. Toxics 2023, 11 (2), 99. https://doi.org/10.3390/toxics11020099.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Edition Compendium Method TO-17 Determination of Volatile Organic Compounds in Ambient Air Using Active Sampling Onto Sorbent Tubes, 1999.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air - Second Edition. Compendium Method TO-1 Method for the Determination of Volatile Organic Compounds (VOCs) in Ambient Air Using Tenax® Adsorption and Gas Chromatography/Mass Spectrometry (GC/MS), 1999.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Edition Compendium Method TO-11A Determination of Formaldehyde in Ambient Air Using Adsorbent Cartridge Followed by High Performance Liquid Chromatography (HPLC), 1999.

This dataset contains the data from the PASCAL Visual Object Classes Challenge, corresponding to the Classification and Detection competitions.

In the Classification competition, the goal is to predict the set of labels contained in the image, while in the Detection competition the goal is to predict the bounding box and label of each individual object. WARNING: As per the official dataset, the test set of VOC2012 does not contain annotations.

To use this dataset:

import tensorflow_datasets as tfds

ds = tfds.load('voc', split='train')
for ex in ds.take(4):
 print(ex)

See the guide for more informations on tensorflow_datasets.

https://storage.googleapis.com/tfds-data/visualization/fig/voc-2007-5.0.0.png" alt="Visualization" width="500px">

This data set contains Trace Organic Gas Analyzer (TOGA) Data collected during NOMADSS from 3 June to 14 July 2013. This data set is in ICARTT format. Please see the header portion of the data files for details on the data set. See individual data files for specific Volatile Organic Compounds (VOCs) measured during NOMADSS, individual VOC measurement accuracies and detection limits.

Introduction3D printing as an emerging technology has been widely used in industrial, educational and residential setups. However, 3D printing can be a source of ultrafine particles and volatile organic compounds (VOCs) indoors.1-3 Exposure to the mixture of these contaminants could induce short- and/or long-term adverse health effects.4-6 Therefore, it is important to understand the emission characteristics from 3D printing. Chemical Insights, a unit of UL Research Institutes, has conducted research initiatives on characterizing particle and VOC emissions from 3D printing. To increase data transparency and share useful information, these research data are made available to stakeholders such as researchers, educators, and general public who may need 3D printing emission data.MethodsEmission characterization followed the standard method of ANSI/CAN/UL 2904 using validated exposure chambers.7 Particle size and concentration were measured using scanning mobility particle sizers and optical particle sizers for 7 nm to 10 µm particles. VOCs were collected on Tenax® TA (60/80 mesh) sorbent tubes and then thermally desorbed and analyzed by thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) following the US EPA Methods TO-178 and TO-19. Individual VOCs were quantified using multi-point calibration curves with authentic standards if available. Total VOC (TVOC) was the sum of toluene equivalent response in C6 to C16 range. Low-molecular-weight carbonyls (aldehydes) samples were collected on 2,4-dinitrophenylhydrazine (DNPH) cartridges and analyzed using high-performance liquid chromatography (HPLC) following EPA Method TO-11A10. The laboratory quality program enables the accuracy of the identification and quantification of analyzed VOCs and aldehydes. Emission rates of particle and VOCs were calculated according to ANSI/CAN/UL 2904.7 Details of measurement and calculation methods can be found in peer-reviewed publications.1-3DatabaseThis database includes particle and VOC emission rate data for various fused filament fabrication (FFF) 3D printing conditions, such as filament type, filament material, filament brand, printing with and without filtration. Specifically, particle emissions are separated into small size (7 to 300 nm), large size (0.3 to 10 µm), and total emissions. VOC emissions were cross-checked according to indoor air quality related references and those VOCs with adverse health impacts were highlighted with health-related classifications. Both particle and VOC emission rates can be compared to maximum allowable emission criteria.7 In addition, a sub-database focusing on VOC emissions only provides an overview on VOC emission data. This sub-database includes both FFF and vat photopolymerization 3D printing technologies and provides summarized data to compare VOC emissions among commonly applied 3D printing conditions. Overall, this database will be useful for manufacturers, users, educators, researchers and others who are involved in 3D printing to understand the basic facts of 3D printing emissions, potential hazards associated with 3D printing, variation of emissions for given printing conditions, and the emission criteria from ANSI/CAN/UL 2904. This data will further help planning and designing of exposure mitigation strategies. Please see ULRI_3DP_NOTE file for details of data dictionary. Data portalThe data portal provides an interactive way of viewing and screening data by selecting the parameters of interest. Users can download the data as needed. Particle and VOC emission data can be found here.The consolidated VOC emission summary can be found here.ReferencesZhang, Q.; Wong, J. P.S.; Davis, A. Y.; Black, M. S.; Weber, R. J. Characterization of particle emissions from consumer fused deposition modeling 3D printers. Aerosol Sci. Tech. 2017, 51(11), 1275-1286. https://doi.org/10.1080/02786826.2017.1342029.Davis, A. Y.; Zhang, Q.; Wong, J. P. S.; Weber, R. J.; Black, M. S. Characterization of Volatile Organic Compound Emissions from Consumer Level Material Extrusion 3D Printers. Build. Environ. 2019, 160, 106209. https://doi.org/10.1016/j.buildenv.2019.106209.Zhang, Q.; Black, M. S. Exposure Hazards of Particles and Volatile Organic Compounds Emitted from Material Extrusion 3D Printing: Consolidation of Chamber Study Data. Environ. Int. 2023, 182, 108316. https://doi.org/10.1016/j.envint.2023.108316.Zhang, Q.; Pardo, M.; Rudich, Y.; Kaplan-Ashiri, I.; Wong, J. P. S.; Davis, A. Y.; Black, M. S.; Weber, R. J. Chemical Composition and Toxicity of Particles Emitted from a Consumer-Level 3D Printer Using Various Materials. Environ. Sci. Tech. 2019, 53(20), 12054-12061. https://doi.org/10.1021/acs.est.9b04168.Barnett, LMA; Zhang, Q.; Sharma, S.; Alqahtani, S.; Shannahan, J.; Black, M.; Wright, C. 3D printer emissions elicit filament-specific and dose-dependent metabolic and genotoxic effects in human airway epithelial cells. Frontiers in Public Health 2024, 12, 1408842. https://doi.org/10.3389/fpubh.2024.1408842.He, X.; Barnett, L. M.; Jeon, J.; Zhang, Q.; Alqahtani, S.; Black, M.; Shannahan, J.; Wright, C. Real-Time Exposure to 3D-Printing Emissions Elicits Metabolic and Pro-Inflammatory Responses in Human Airway Epithelial Cells. Toxics 2024, 12, 67. https://doi.org/10.3390/toxics12010067.ANSI. ANSI/CAN/UL 2904:2023 Standard Method for Testing and Assessing Particle and Chemical Emissions from 3D Printers. 2023. American National Standards Institute: Washington DC, USA.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Edition Compendium Method TO-17 Determination of Volatile Organic Compounds in Ambient Air Using Active Sampling Onto Sorbent Tubes, 1999.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air - Second Edition. Compendium Method TO-1 Method for the Determination of Volatile Organic Compounds (VOCs) in Ambient Air Using Tenax® Adsorption and Gas Chromatography/Mass Spectrometry (GC/MS), 1999.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Edition Compendium Method TO-11A Determination of Formaldehyde in Ambient Air Using Adsorbent Cartridge Followed by High Performance Liquid Chromatography (HPLC), 1999.

Data Archive Supporting "Emissions of Volatile Organic Compounds from Brake Wear and Their Role in Ultrafine Particle Nucleation", Durif et al. 2025

Folders content

Materials: Contains all the necessary data and scripts to reproduce the results and figures presented in the study.

Software: Includes Julia packages developed specifically for processing the provided data.

VCPy was developed to predict evaporative emissions of VOCs from volatile chemical products. The data contains python code and inputs for VCPy v1.0 as well as an excel file containing values from the main text figures in the work of Seltzer et al. (Atmospheric Chemistry and Physics, 2021).

Ecosystem Sites, Volatile Organic Compounds – Preliminary Data, Oil Sands Region Volatile organic compounds (VOC) data are currently collected by Environment and Climate Change Canada at a Wood Buffalo Environmental Association (WBEA) Air Monitoring Station (AMS). As of September 27, 2017, raw, hourly averaged, near real-time VOC data from the oil sands region are available for WBEA AMS 25 – Waskow Ohci Pimatisiwin, located in Fort McKay, Alberta. Prior to this date, this instrument was measuring VOCs at WBEA AMS 1 – Bertha Ganter, also located in Fort McKay, Alberta. The VOCs that are currently being measured at AMS 25 are benzene, toluene, ethylbenzene, m,p-xylenes, o-xylene, styrene, n-hexane, n-heptane, n-octane, 2-methylpentane, and methylcyclohexane. Alberta Ambient Air Quality Objectives (AAAQOs) exist for benzene, toluene, ethylbenzene, xylenes, n-hexane, and styrene. These data are preliminary and of unspecified quality. They are subject to significant change, can occasionally include maintenance data, and should not be used in published documents. Please do not use or distribute these files without the associated metadata. It is recommended that people wishing to use these data first consult with the Principal Investigator to better understand potential limitations.

Monitoring of volatile organic compounds (VOC) was initiated by Environment and Climate Change Canada at the Wood Buffalo Environmental Association (WBEA) Air Monitoring Station (AMS) 1 – Bertha Ganter, in Fort McKay, Alberta in October 2011. The VOC compounds that are currently being measured at AMS 1 are benzene, toluene, ethylbenzene, m,p-xylenes, and o-xylene (BTEX). All of the validated VOC maximum hourly concentrations are below the hourly Alberta Ambient Air Quality Objectives (AAAQOs). The annual mean benzene concentrations are also below the annual AAAQO for benzene.

This dataset contains trace organic gas analyzer (TOGA) data taken aboard the NCAR G-V during the TORERO project. VOCs are important to understand ozone in the atmosphere. VOCs measured include hydrocarbons, oxygenates, halocarbons, nitrogen and sulfur compounds, isoprene, methacrolein, MVK, and acetone.

IntroductionVolatile organic compounds (VOCs) are compounds that have a high vapor pressure and low water solubility, which are emitted from solid or liquid sources. Emission sources indoors include furniture and building materials, cleaning and cooking activities, consumer products and office equipment. Among the various VOCs, some of them may have short- and/or long-term adverse health effects. Therefore, it is important to understand the VOC compositions that people are exposed to in indoor and outdoor environments. However, accurate monitoring of VOCs is not available for many researchers and the public. Chemical Insights, a unit of UL Research Institutes, has conducted research initiatives on characterizing VOCs in indoor and outdoor environments in China and India with collaboration with Duke University. To increase data transparency and share useful information, these research data are made available to stakeholders such as researchers, educators, and general public who may need environmental VOC data.MethodsThe methods of sample collection and analysis have been developed and validated previously. VOCs were collected on Tenax® TA (60/80 mesh) sorbent tubes and then thermally desorbed and analyzed by thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) following the US EPA Methods TO-171 and TO-12. Individual VOCs were quantified using multi-point calibration curves with authentic standards if available. Total VOC (TVOC) was the sum of toluene equivalent response in C6 to C16 range. Low-molecular-weight carbonyls (aldehydes) samples were collected on 2,4-dinitrophenylhydrazine (DNPH) cartridges and analyzed using high-performance liquid chromatography (HPLC) following EPA Method TO-11A.3 The laboratory quality program enables the accuracy of the identification and quantification of analyzed VOCs and aldehydes. The China campaign included 42 households in Shanghai collected in April 2017;4 the India campaign included 26 homes in Ahmedabad and Gandhinagar, Gujarat during May 2019 and January 2020.5 Details of the study and sampling plan can be found in peer-reviewed publications.4,5DatabaseThis database includes all detected VOCs with their concentrations from China and India campaigns. This database provides information on indoor and outdoor VOC compositions and levels. In addition, the China data includes a comparison for the impact of filtration (portable air cleaner with HEPA and carbon filters) on indoor VOC levels. The India data includes comparisons of diurnal (morning vs. afternoon) and seasonal (summer vs. winter) differences of VOCs at the same location. This database helps in understanding the variation of indoor and outdoor VOC species in different countries and regions, the potential sources of indoor and outdoor VOCs, as well as the trends of VOCs under different spatial and temporal variations. This data allows users to identify commonly (or uniquely) and abundantly existing chemical agents in different environments and the range of their levels due to variations in locations, time, settings and activities. This data is beneficial for a wide range of stakeholders, including consumers, manufacturers, researchers, policymakers, educators, and the public. Please see ULRI_CHINA+INDIA_NOTE file for details of data dictionary.Data portalThe data portal provides an interactive way of viewing and screening data by selecting the parameters of interest. Users can download the data as needed.ReferencesUS EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Edition Compendium Method TO-17 Determination of Volatile Organic Compounds in Ambient Air Using Active Sampling Onto Sorbent Tubes, 1999.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air - Second Edition. Compendium Method TO-1 Method for the Determination of Volatile Organic Compounds (VOCs) in Ambient Air Using Tenax® Adsorption and Gas Chromatography/Mass Spectrometry (GC/MS), 1999.US EPA. Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Edition Compendium Method TO-11A Determination of Formaldehyde in Ambient Air Using Adsorbent Cartridge Followed by High Performance Liquid Chromatography (HPLC), 1999.Norris, C.; Fang, L.; Barkjohn, K. K.; Carlson, D.; Zhang, Y.; Mo, J.; Li, Z.; Zhang, J.; Cui, X.; Schauer, J. J.; Davis, A.; Black, M.; Bergin, M. H. Sources of Volatile Organic Compounds in Suburban Homes in Shanghai, China, and the Impact of Air Filtration on Compound Concentrations. Chemosphere 2019, 231, 256–268. https://doi.org/10.1016/j.chemosphere.2019.05.059.Norris, C. L.; Edwards, R.; Ghoroi, C.; Schauer, J. J.; Black, M.; Bergin, M. H. A Pilot Study to Quantify Volatile Organic Compounds and Their Sources Inside and Outside Homes in Urban India in Summer and Winter during Normal Daily Activities. Environments 2022, 9 (7), 75. https://doi.org/10.3390/environments9070075.

The raw mutagenicity data for experiments initiated with VOC + UV and NOx (Figure 1). The data are the number of mutant colonies (called revertants or rev) per petri plate of strain TA100 of Salmonella using the Salmonella (Ames) mutagenicity assay. Rev hr-1 figures were normalized to to non-precursor VOC concentrations by determining the difference between initial and final precursor concentrations (e.g., the delta Hydrocarbon for each precursor), in micrograms carbon m-3 (see Table 1). This SOC yield was then used to subtract off product concentrations lost to the particle phase. The remaining concentration was then considered to be the Estimated Gas-Phase Product Concentration. Mutagenic potencies, in rev hr-1, were divided by the Estimated Gas-Phase Product Concentration, to give normalized mutagenicic potencies in rev m3 hr-1 mgC-1. This dataset is associated with the following publication: Krug, J., T. Riedel, M. Lewandowski, W. Lonneman, J. Turlington, J. Zavala, S. Warren, T. Kleindienst, and D. DeMarini. Mutagenic Atmospheres Generated from the Photooxidation of NOx with Selected VOCs and a Complex Mixture: Apportionment of Aromatic Mutagenicity for Reacted Gasoline Vapor. ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, USA, na, (2024).

Data underlying the publication: Ecological selection shapes the functionality of fungal communities, the case of spontaneously fermented wine

UPDATE log

27-09-2024: created

21-10-2024: updated information - added all files

24-10-2024: updated information - made adjustments according to review

This dataset contains the scripts and data used for the bioinformatic analysis of the publication: Ecological selection shapes the functionality of fungal communities, the case of spontaneously fermented wine. (UNPUBLISHED)

In these files, all the metadata from the samples is stored. This contains, for example, sample location, variety and year. Next to this, the measured volatiles are stored here as raw output files from the GC-MS. From the ITS sequencing that was done the OTU-table as well as the taxonomy is available.