Data and Tools

Frequent Questions about AirData

outdoor air quality data faqs

Interactive Map of Air Quality Monitors

map of air quality monitors

Assessment of PM2.5 FEMs Compared to Collocated FRMs

This memorandum describes a one-page technical report that assesses the comparability of a PM2.5 continuous monitor when collocated with an FRM sampler.

2016 Revisions to the Exceptional Events Rule: Update to Frequently Asked Questions

This September 11, 2018, document replaces the “Interim Exceptional Events Rule Frequently Asked Questions” document posted on May 14, 2013.

Exceptional Events Submissions Table (2016 Rule)

This table contains examples of air agency submitted exceptional events demonstrations and responsive EPA decision documents that have been prepared and/or acted upon under the 2016 Exceptional Events Rule

Exceptional Events Documents Ozone - Rhode Island

Exceptional Events Documents Ozone - Massachusetts

Webinar Presentation - Final Exceptional Events Rule Revisions and Final Wildfire/Ozone Implementation Guidance

Slides for 9/21/2016 webinar titled Final Exceptional Events Rule Revisions and Final Wildfire/Ozone Implementation Guidance

Ambient Air Toxics Trends Tool

This application is an expansion of the Air Trends Report displaying the annual ambient air toxics monitoring trends.

Allowance Data

List of the major allowance data tools and resources used by the Clean Air Markets Programs.

Documentation for Risk-Screening Environmental Indicators (RSEI) Geographic Microdata (RSEI-GM)

information on the RSEI Geographic Microdata, which are a unique dataset that provides detailed air model results from the RSEI model at a level of 810 meter square grid cells

Examples of Incorrect Web-distributed Labeling

Examples of improper web-distributed labeling.

ECM for Trifludimoxazin and M850H001 in Soil - MRID 51207301

ECM for Pyriofenone in Water - MRID 49256133

These documents include the analytical method for pyriofenone in water, an independent laboratory validation of the method, and EPA's evaluation of the method and validation.

ECM for Thiamethoxam in Dust - MRID 49158921

ECM for Methomyl in Soil - MRID 42288001

Environmental Chemistry Methods for Methomyl in Soil - MRID 42288001

ECM for Prothioconazole & Degradates in Soil - MRID 46246531

ECM for Tolclofos-methyl in Water - MRID 48842101

ECM for Pyriofenone in Soil - MRID 49256126

These documents include the analytical method for pyriofenone in soil, an independent laboratory validation of the method, and EPA's evaluation of the method and validation.

ECM for Momfluorothrin in Soil - MRID 49019934