Science & Technology

Air Data - Concentration Plot

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.

ChemSTEER Quick Start Guide and User Guide - TSCA Predictive Screening Tool

ChemSTEER Quick Start Manual and User Manual

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.

Field Measurement Uncertainty

Field Branches Quality System and Technical Procedures

Air Data - Multiyear Tile Plot

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.

Air Data - Daily Air Quality Tracker

This tool plots daily AQI values relative to the most recent 5-year average and the high/low since 2000 for a specific location and time period.

Air Quality Index Daily Values Report

This report provides daily Air Quality Index values for the specified year and location. Read more about what's in this report

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.

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.

Fentanyl: How Can We Clean it Up? Webinar

EPA's ORD offers free public webinars on recent research results. Watch a pre-recorded webinar with an overview of EPA's research to assist local and state entities requesting technical support for fentanyl remediation responses across the country.