Science & Technology

Download Daily Data

This tool queries daily air quality summary statistics for the criteria pollutants by monitor. You can get data for specific monitors or all monitors in a city, county, or state.

Air Data - AQI Plot

This tool compares AQI values for multiple pollutants for a specific location and time period. This tool displays an entire year of AQI values - two pollutants at a time.

Ambient Water Monitoring and Assessment: Resources and Tools

AWMA replaces the previously archived water monitoring website. It is meant to be a one stop shop to link states, tribes, and citizens interested in volunteer monitoring to a variety of monitoring and assessment related documents.

Sebade Land and Cattle LLC Concentrated Animal Feeding Operation, Emerson, Nebraska (Within Exterior Boundaries of Winnebago Tribe of Nebraska Reservation)

Proposed Wastewater (NPDES) Permit No. NE0135712

Comments Due Date: May 24, 2025
Geographic Locations: Nebraska

Single-year Tile Plot - for Exceptional Events Analysis

This tool plots daily AQI values for a specific location and time period. Each square or “tile” represents one day of the year and is color-coded based on the AQI level for that day. The legend tallies the number of days in each AQI category.

Multiyear Tile Plot - for Exceptional Events Analysis

This tool makes a time series plot for a specific location and time period. This tool displays daily air quality summary statistics for the criteria pollutants by monitor.

AQS Related Resources

AQS Related Links

Concentration Map - for Exceptional Events Analysis

Make a map of daily concentrations over several days. The daily air quality can be displayed in terms of the Air Quality Index or in concentration ranges for certain PM species like organic carbon, nitrates, and sulfates.

White Lake AOC Boundary Map

Maps showing boundary of White Lake AOC; GIS shapefile.

Chemical Safety for Sustainability & Health and Environmental Risk Assessment Subcommittee

About the BOSC Chemical Safety for Sustainability & Human and Environmental Risk Assessment Subcommittee

AQS Tribal Reporting to AQS

Stakeholder Process for Natural Gas and Petroleum Systems in the 1990-2020 Inventory

This page provides information about stakeholder meetings and webinars on updates under consideration for the 2021 Greenhouse Gas Inventory, Natural Gas and Petroleum Systems sector.

Oil Spill Response: Advances in Detection Capabilities Webinar

EPA's ORD offers free public webinars on recent research results. Watch a pre-recorded webinar on advances in monitoring and detection of oil spills through improvements in various platforms and on-site sensor technologies.

Engagement Opportunities

EPA wants to ensure that research conducted by the program is meeting the needs of its partners and stakeholders. Researchers may at times seek out volunteers to participate in their research studies. This page lists research engagement opportunities.