Science & Technology

State Perchlorate Advisory Levels As of 4/20/05

State Perchlorate Advisory Levels As of 4/20/05 for 8 states

Notification: Audit of the EPA’s Greenhouse Gas Reduction Fund – Solar for All Program

Update Your Member Lab Compendium Data

The Compendium of Environmental Testing Laboratories is a limited-access online database of environmental laboratories nationwide that is available to EPA; Federal, State, and local emergency responders; laboratory personnel; and water utilities.

Guidance for Ozone and Fine Particulate Matter Permit Modeling

Draft Guidance for Ozone and Fine Particulate Matter Permit Modeling

2024 Appendix W Final Rule

On November 20, 2024, the EPA Administrator signed a final rule that revises the Guideline on Air Quality Models. This webpage provides the background material related to this final rule for stakeholder reference.

Podcast: The EPA Needs to Determine Whether Seresto Pet Collars Pose an Unreasonable Risk to Pet Health

EPA Requests Nominations for Panel Members and Ad Hoc Reviewers for the Science Advisory Committee on Chemicals

EPA Requests Nominations for Ad Hoc Peer Reviewers and Membership Appointment to the SACC

A Guide to Siting and Installing Air Sensors

The availability of small, lower-cost, and more portable air sensors is an exciting development for individuals and organizations interested in measuring local air quality. But finding a place to site and install that sensor is important.

PM2.5 Tiering Tool - 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.

Metals CRADA Phase 1 Report

This page describes aquatic life criteria and links to methodology documents.

Bioassessment and Biocriteria Program Status for Alaska: Streams and Wadeable Rivers

Biocriteria Program Status of Alaska

Revised Draft Guidance for Ozone and Fine Particulate Matter Permit Modeling

Draft Guidance for Ozone and Fine Particulate Matter Permit Modeling

Contaminants of Emerging Concern including Pharmaceuticals and Personal Care Products

Both the Office of Pesticide Programs (OPP) and the Office of Water (OW) assess the effects of pesticides on aquatic ecosystems using approaches that afford a high degree of protection for aquatic life and that were developed with high quality data.

Consumable Fish and Shellfish

This page explains the connection of the ROE indicators to the chapter themes. This page includes the ROE questions, lists of the related indicators, and additional background information.

Bão, Lũ Lụt Và Các Trường Hợp Khẩn Cấp Khác

Information in Vietnamese language about how to prepare for, and what to do during and after, hurricanes, floods, and other emergencies

Cơ Quan Bảo Vệ Môi Sinh Hoa Kỳ - Tiếng Việt

Environmental information translated into Vietnamese includes air quality, asthma, mold, drinking water and fish consumption, pesticides and toxic substances, environmental justice, and preparing for natural disasters.

美国国家环境保护局 - 中文 (简体版)

Environmental information translated into Simplified Chinese includes air quality, drinking water and fish consumption, pesticides and toxic substances, women's health, diabetes, safe waste disposal, and environmental justice, clean up

News Release: The EPA Office of Inspector General Identifies Gaps in Oversight of the Wood Heater Program under the Clean Air Act

Sante ak anviwònman Enfòmasyon an kreyòl ayisyen

Environmental information translated into Haitian Creole.

美國國家環境保護局 - 中文 (繁體版)

Environmental information in traditional Chinese includes air quality, drinking water and fish consumption, pesticides and toxic substances, disaster preparedness, diabetes, environmental justice, carbon monoxide, and pest control.