Science & Technology

EPA Method 3520C (SW-846): Continuous Liquid-Liquid Extraction

SAM lists this method for extraction of selected slightly soluble organics from water samples prior to analysis.

EPA Method 3015A: Microwave Assisted Acid Digestion of Aqueous Samples and Extracts

SAM lists this method for preparation of non-drinking water samples to be analyzed for total arsenic, thallium, osmium and vanadium.

NIOSH Method 9102: Elements on Wipes

Method 9102 describes procedures for analysis of elements in wipe samples using ICP-AES.

EPA Method 3535A (SW-846): Solid-Phase Extraction (SPE)

SAM lists this method a procedure to prepare isolating target water samples for analysis of target organic compounds, using solid phase extraction (SPE).

EPA Method 3511 (SW-846): Organic Compounds in Water by Microextraction

SAM lists this method for preparation of water samples to be analyzed for tetraethylpyrophosphate (TEPP).

Study Opportunities & Details

Details about the available EPA human studies volunteer opportunities.

EPA Research at NACCHO Preparedness Summit | 2025

EPA researchers are providing several presentations on EPA’s SARS-CoV-2 portfolio research at this year's NACCHO Preparedness Summit.

EPA Method 3541 (SW-846): Automated Soxhlet Extraction

SAM lists this method for preparation of solid samples to be analyzed for selected organic compounds, using automated Soxhlet extraction.

Environmental Quality Index (EQI)

The Environmental Quality Index (EQI) pulls data from five domains: air, water, land, built, and sociodemographic environments to provide a county-by-county snapshot of overall environmental quality across the entire U.S.

WebFIRE

WebFIRE is an emissions factors repository and retrieval tool for criteria and hazardous air pollutants in addition to housing electronic reports.

MERPs View Qlik

MERPs VIEW Qlik Applications

EPA Response to RFC: Toxics Release Inventory Listing of Isopropyl Alcohol

EPA response to the Request for Correction (RFC)

RFC: Ozone and Nitrogen Oxides webpages

Request submitted by Forrest Mims

Follow up to RFC: Responses to Comments on EPA's Designation and Classification of Areas for the 8-Hour Ozone National Ambient Air Quality Standard

Submitted by Forrest Mims III

EPA response to RFC: Guidelines for Ensuring and Maximizing the Quality, Objectivity, Utility, and Integrity of Information Disseminated by Federal Agencies