Detailed Discharge Monitoring Report (DMR) data supporting effluent charts for one Clean Water Act discharge permit. Includes effluent parameters, amounts discharged and identified Clean Water Act permit limit exceedances.

Summary of compliance status each outfall and parameter for one Clean Water Act discharge permit. Provides the current compliance status and overall compliance status for the date range of interest. This service supports the Summary Matrix on the ECHO website Effluent Charts.

clean-water-act compliance compliance-history cwa detailed-facility-report echo enforcement environmental-performance epa-data-download icis national-pollutant-discharge-elimination-system npdes oeca permit permitted-effluent-limits releases violations wastewater-discharge-permits

This line chart displays lowest price by date using the aggregation sum. The data is filtered where the stock is EPA.AX. The data is about stocks per day.

clean-water-act compliance compliance-history cwa detailed-facility-report echo enforcement environmental-performance epa-data-download icis national-pollutant-discharge-elimination-system npdes oeca permit permitted-effluent-limits releases violations wastewater-discharge-permits

This indicator shows how many days per year were assessed to have air quality that was worse than “moderate” in Champaign County, according to the U.S. Environmental Protection Agency’s (U.S. EPA) Air Quality Index Reports. The period of analysis is 1980-2024, and the U.S. EPA’s air quality ratings analyzed here are as follows, from best to worst: “good,” “moderate,” “unhealthy for sensitive groups,” “unhealthy,” “very unhealthy,” and "hazardous."[1]

In 2024, the number of days rated to have air quality worse than moderate was 0. This is a significant decrease from the 13 days in 2023 in the same category, the highest in the 21st century. That figure is likely due to the air pollution created by the unprecedented Canadian wildfire smoke in Summer 2023.

While there has been no consistent year-to-year trend in the number of days per year rated to have air quality worse than moderate, the number of days in peak years had decreased from 2000 through 2022. Where peak years before 2000 had between one and two dozen days with air quality worse than moderate (e.g., 1983, 18 days; 1988, 23 days; 1994, 17 days; 1999, 24 days), the year with the greatest number of days with air quality worse than moderate from 2000-2022 was 2002, with 10 days. There were several years between 2006 and 2022 that had no days with air quality worse than moderate.

This data is sourced from the U.S. EPA’s Air Quality Index Reports. The reports are released annually, and our period of analysis is 1980-2024. The Air Quality Index Report websites does caution that "[a]ir pollution levels measured at a particular monitoring site are not necessarily representative of the air quality for an entire county or urban area," and recommends that data users do not compare air quality between different locations[2].

[1] Environmental Protection Agency. (1980-2024). Air Quality Index Reports. (Accessed 13 June 2025).

[2] Ibid.

Source: Environmental Protection Agency. (1980-2024). Air Quality Index Reports. https://www.epa.gov/outdoor-air-quality-data/air-quality-index-report. (Accessed 13 June 2025).

EJSCREEN is an environmental justice (EJ) screening and mapping tool that provides EPA with a nationally consistent dataset and methodology for calculating "EJ indexes," which can be used for highlighting places that may be candidates for further review, analysis, or outreach as the agency develops programs, policies and other activities. The tool provides both summary and detailed information at the Census block group level or a user-defined area for both demographic and environmental indicators. The summary information is in the form of EJ Indexes which combine demographic information with a single environmental indicator (such as proximity to traffic) that can help identify communities living in areas with greater potential for environmental and health impacts. The tool also provides additional detailed demographic and environmental information to supplement screening analyses. EJSCREEN displays this information in color-coded maps, bar charts, and standard reports. Users should keep in mind that screening tools are subject to substantial uncertainty in their demographic and environmental data, particularly when looking at small geographic areas, such as Census block groups. Data on the full range of environmental impacts and demographic factors in any given location are almost certainly not available directly through this tool, and its initial results should be supplemented with additional information and local knowledge before making any judgments about potential areas of EJ concern. Download data: ftp://newftp.epa.gov/EJSCREEN

This tool to gives you access to greenhouse gas data reported to EPA by large facilities and suppliers in the United States through EPA's Greenhouse Gas Reporting Program. The tool allows you to view data in several formats including maps, tables, charts and graphs for individual facilities or groups of facilities. You can search the data set for individual facilities by name or _location or filter the data set by state or county, industry sectors and sub-sectors, annual facility emission thresholds, and greenhouse gas type. For more information on the GHG Reporting Program and this data, please visit https://www.epa.gov/ghgreporting

Analysis of ‘EPA Air Pollutant Monitoring - Ozone’ provided by Analyst-2 (analyst-2.ai), based on source dataset retrieved from https://catalog.data.gov/dataset/09912785-29bc-4ba3-9d79-3d2a11fcfc69 on 12 February 2022.

--- Dataset description provided by original source is as follows ---

Daily summary of air quality at specified locations in King County (Ozone). Air quality monitors measure concentrations of ozone throughout the country. EPA, state, tribal and local agencies use that data to ensure that ozone is at levels that protect public health and the environment. Nationally, average ozone levels declined in the 1980's, leveled off in the 1990's, and showed a notable decline after 2002. The charts below show national and regional trends in ozone concentrations.

--- Original source retains full ownership of the source dataset ---

description: The State Authorization Tracking System (StATS) is an information management system designed to document the progress of each state and territory in establishing and maintaining RCRA-authorized hazardous waste management programs. StATS tracks the status of each state with regard to changes made to the federal hazardous waste regulations. The pages listed at the website show state authorization and adoption information for RCRA Subtitle C hazardous waste rules. Adoption information is based on data received from EPA regional offices. Currently, state authorization and adoption percentages are based on the required rules promulgated through RCRA Cluster XXII. Published federal register notices are the only legal mechanism by which EPA grants authorization to the states. If any of the information contained in the StATS database conflicts with information stated in the Federal Register, the Federal Register information will take precedence. We strongly recommend that the regulated community contact their state government office for hazardous waste regulatory information.; abstract: The State Authorization Tracking System (StATS) is an information management system designed to document the progress of each state and territory in establishing and maintaining RCRA-authorized hazardous waste management programs. StATS tracks the status of each state with regard to changes made to the federal hazardous waste regulations. The pages listed at the website show state authorization and adoption information for RCRA Subtitle C hazardous waste rules. Adoption information is based on data received from EPA regional offices. Currently, state authorization and adoption percentages are based on the required rules promulgated through RCRA Cluster XXII. Published federal register notices are the only legal mechanism by which EPA grants authorization to the states. If any of the information contained in the StATS database conflicts with information stated in the Federal Register, the Federal Register information will take precedence. We strongly recommend that the regulated community contact their state government office for hazardous waste regulatory information.

EPA has provided a layer to EJScreen that combines CEJST and EJScreen data to identify whether a community is disadvantaged for the purposes of implementing EPA programs under the Inflation Reduction Act, including the CPRG program. The EJScreen layer can be found on the EJscreen tool under the “Places” tab and by selecting “EPA IRA Disadvantaged”: https://ejscreen.epa.gov/mapper/. The IRA disadvantaged database was downloaded from https://gaftp.epa.gov/EPA_IRA_Public/. All U.S. census tracts are listed and identifies which are designated as disadvantaged. EJScreen is an environmental justice (EJ) screening and mapping tool that provides EPA with a nationally consistent dataset and methodology for calculating "EJ indexes," which can be used for highlighting places that may be candidates for further review, analysis, or outreach as the agency develops programs, policies and other activities. The tool provides both summary and detailed information at the Census block group level or a user-defined area for both demographic and environmental indicators. The summary information is in the form of EJ Indexes and Supplemental which combine demographic information with a single environmental indicator (such as proximity to traffic) that can help identify communities living in areas with greater potential for environmental and health impacts. The tool also provides additional detailed demographic and environmental information to supplement screening analyses. EJScreen displays this information in color-coded maps, bar charts, and standard reports. Users should keep in mind that screening tools are subject to substantial uncertainty in their demographic and environmental data, particularly when looking at small geographic areas, such as Census block groups. Data on the full range of environmental impacts and demographic factors in any given location are almost certainly not available directly through this tool, and its initial results should be supplemented with additional information and local knowledge before making any judgments about potential areas of EJ concern.

description: EJSCREEN is an environmental justice (EJ) screening and mapping tool that provides EPA with a nationally consistent dataset and methodology for calculating "EJ indexes," which can be used for highlighting places that may be candidates for further review, analysis, or outreach as the agency develops programs, policies and other activities. The tool provides both summary and detailed information at the Census block group level or a user-defined area for both demographic and environmental indicators. The summary information is in the form of EJ Indexes which combine demographic information with a single environmental indicator (such as proximity to traffic) that can help identify communities living in areas with greater potential for environmental and health impacts. The tool also provides additional detailed demographic and environmental information to supplement screening analyses. EJSCREEN displays this information in color-coded maps, bar charts, and standard reports. Users should keep in mind that screening tools are subject to substantial uncertainty in their demographic and environmental data, particularly when looking at small geographic areas, such as Census block groups. Data on the full range of environmental impacts and demographic factors in any given location are almost certainly not available directly through this tool, and its initial results should be supplemented with additional information and local knowledge before making any judgments about potential areas of EJ concern. The National-scale Air Toxics Assessment (NATA) environmental indicators and EJ indexes, which include cancer risk, respiratory hazard, neurodevelopment hazard, and diesel particulate matter will be added into EJSCREEN during the first full public update after the soon-to-be-released 2011 dataset is made available. All NATA associated indicator and index elements are currently set to "Null".; abstract: EJSCREEN is an environmental justice (EJ) screening and mapping tool that provides EPA with a nationally consistent dataset and methodology for calculating "EJ indexes," which can be used for highlighting places that may be candidates for further review, analysis, or outreach as the agency develops programs, policies and other activities. The tool provides both summary and detailed information at the Census block group level or a user-defined area for both demographic and environmental indicators. The summary information is in the form of EJ Indexes which combine demographic information with a single environmental indicator (such as proximity to traffic) that can help identify communities living in areas with greater potential for environmental and health impacts. The tool also provides additional detailed demographic and environmental information to supplement screening analyses. EJSCREEN displays this information in color-coded maps, bar charts, and standard reports. Users should keep in mind that screening tools are subject to substantial uncertainty in their demographic and environmental data, particularly when looking at small geographic areas, such as Census block groups. Data on the full range of environmental impacts and demographic factors in any given location are almost certainly not available directly through this tool, and its initial results should be supplemented with additional information and local knowledge before making any judgments about potential areas of EJ concern. The National-scale Air Toxics Assessment (NATA) environmental indicators and EJ indexes, which include cancer risk, respiratory hazard, neurodevelopment hazard, and diesel particulate matter will be added into EJSCREEN during the first full public update after the soon-to-be-released 2011 dataset is made available. All NATA associated indicator and index elements are currently set to "Null".

The Toxicological Effect and Risk Assessment (TERA) Knowledge Graph is based on chemical effect data from U.S. EPA ECOTOX. This data is aligned to non-proprietary identifiers using ontology alignment tools and external sources (eg. wikidata). This enables the use of external chemical knowledge graphs (eg. ChEBI, PubChem). This data set also included an aggregated (into a knowledge graph) of the NCBI taxonomy and Encyclopedia of Life traits data.

Linking ECOTOX to external sources enables the extrapolation of effect data, which can extend the reach of ecological risk assessment and limit laboratory experiments.

The construction and APIs to facilitate access can be found at: https://gitlab.com/Erik-BM/rappt

A promising application of the knowledge graph is chemical effect prediction. This work can be found here: https://github.com/Erik-BM/NIVAUC

Files:

• TERA.nt
  • All data.
• TERA_ncbi_taxonomy.nt
  • Aggregated into knowledge graph from the NCBI taxonomy.
• TERA_ecotox_taxonomy.nt
  • Aggregated into knowledge graph from the ECOTOX species taxonomy.
• partial_alignment_ecotox_ncbi.nt
  • Alignment between species NCBI and ECOTOX taxonomies. Gathered from https://cfpub.epa.gov/ecotox/ .
  • Ground truth for aligning of TERA_ecotox_taxonomy.nt and TERA_ncbi_taxonomy.nt
• TERA_levensthein_ecotox_ncbi.nt
  • Alignment between species NCBI and ECOTOX taxonomies using Levenshtein distance between labels.
• TERA_logmap_ecotox_ncbi.nt
  • Alignment between species NCBI and ECOTOX taxonomies using LogMap alignment tool.
• TERA_aml_ecotox_ncbi.nt
  • Alignment between species NCBI and ECOTOX taxonomies using AML alignment tool.
• TERA_agreement_alignment_ecotox_ncbi.nt
  • Intersection of Levenshtein, LogMap, and AML alignments.
• TERA_alignment_ecotox_chemicals_wikidata.nt
  • Chemical identifiers in ECOTOX aligned to Wikidata.
• TERA_alignment_ncbi_wikidata.nt
  • Species identifiers from NCBI aligned to Wikidata.

Boundaries of available marine dumping zones for the State of Hawaii as recorded on NOAA nautical charts. Regulations for ocean dumping sites are contained in Title 40 ("Protection of Environment), Subchapter H ("Ocean Dumping"), Parts 220-229 of the U.S. Code of Federal Regulations (40 CFR 220-229). Additional information concerning the regulations and requirements for use of these sites may be obtained from the U.S. Environmental Protection Agency (EPA).

Analysis of ‘EPA Air Pollutant Monitoring - Carbon Monoxide’ provided by Analyst-2 (analyst-2.ai), based on source dataset retrieved from https://catalog.data.gov/dataset/f8db6e47-c1c6-48f3-a0be-5044c3c899a7 on 26 January 2022.

--- Dataset description provided by original source is as follows ---

Daily summary of air quality at specified locations in King County (Carbon Monoxide). Air quality monitors measure concentrations of CO throughout the country. EPA, state, tribal and local agencies use that data to ensure that CO remains at levels that protect public health and the environment. Nationally, average CO concentrations have decreased substantially over the years. The charts below show national and regional trends in CO concentrations.

--- Original source retains full ownership of the source dataset ---

EPA has provided a layer to EJScreen that combines CEJST and EJScreen data to identify whether a community is disadvantaged for the purposes of implementing EPA programs under the Inflation Reduction Act, including the CPRG program. The EJScreen layer can be found on the EJscreen tool under the “Places” tab and by selecting “EPA IRA Disadvantaged”: https://ejscreen.epa.gov/mapper/. The IRA disadvantaged database was downloaded from https://gaftp.epa.gov/EPA_IRA_Public/. All U.S. census tracts are listed and identifies which are designated as disadvantaged. EJScreen is an environmental justice (EJ) screening and mapping tool that provides EPA with a nationally consistent dataset and methodology for calculating "EJ indexes," which can be used for highlighting places that may be candidates for further review, analysis, or outreach as the agency develops programs, policies and other activities. The tool provides both summary and detailed information at the Census block group level or a user-defined area for both demographic and environmental indicators. The summary information is in the form of EJ Indexes and Supplemental which combine demographic information with a single environmental indicator (such as proximity to traffic) that can help identify communities living in areas with greater potential for environmental and health impacts. The tool also provides additional detailed demographic and environmental information to supplement screening analyses. EJScreen displays this information in color-coded maps, bar charts, and standard reports. Users should keep in mind that screening tools are subject to substantial uncertainty in their demographic and environmental data, particularly when looking at small geographic areas, such as Census block groups. Data on the full range of environmental impacts and demographic factors in any given location are almost certainly not available directly through this tool, and its initial results should be supplemented with additional information and local knowledge before making any judgments about potential areas of EJ concern.

Boundaries of discontinued marine dumping zones for the State of Hawaii as recorded on NOAA nautical charts. These areas are no longer permitted for dumping. Regulations for ocean dumping sites are contained in Title 40 ("Protection of Environment), Subchapter H ("Ocean Dumping"), Parts 220-229 of the U.S. Code of Federal Regulations (40 CFR 220-229). Additional information concerning the regulations and requirements for use of these sites may be obtained from the U.S. Environmental Protection Agency (EPA).

These files represent the state and regional summaries of sensitivities to formaldehyde, acetaldehyde and ozone to various sources and compounds. This dataset is associated with the following publication: Luecken, D., S. Napelenok, M. Strum, R. Scheffe, and S. Phillips. Sensitivity of Ambient Atmospheric Formaldehyde and Ozone to Precursor Species and Source Types Across the United States. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, USA, 52(8): 4668–4675, (2018).

The Quick Facts and Trends module is part of a suite of Clean Air Markets-related tools that are accessible at http://camddataandmaps.epa.gov/gdm/index.cfm. The Quick Facts and Trends module provides charts and graphs depicting national trends in emissions and heat input. The user can view, for example, data pertaining to the top annual and ozone season emitters of a selected pollutant, the number of units and facilities in a particular state, and trends in sulfur dioxide, nitrogen oxide and carbon dioxide emissions.

EPA's Clean Air Markets Division (CAMD) includes several market-based regulatory programs designed to improve air quality and ecosystems. The most well-known of these programs are EPA's Acid Rain Program and the NOx Programs, which reduce emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx)-compounds that adversely affect air quality, the environment, and public health. CAMD also plays an integral role in the development and implementation of the Clean Air Interstate Rule (CAIR).

Analysis of ‘EPA Air Pollutant Monitoring - Sulfur Dioxide’ provided by Analyst-2 (analyst-2.ai), based on source dataset retrieved from https://catalog.data.gov/dataset/dd4dc7f0-5422-4c79-9fa0-f5b9edddb01a on 26 January 2022.

--- Dataset description provided by original source is as follows ---

Daily summary of air quality at specified locations in King County (Sulfer Dioxide). Air quality monitors measure concentrations of SO2 throughout the country. EPA, state, tribal and local agencies use that data to ensure that SO2 in the air is at levels that protect public health and the environment. Nationally, average SO2 concentrations have decreased substantially over the years. The charts below show national and regional trends in SO2 concentrations.

--- Original source retains full ownership of the source dataset ---