Learn the Issues

An Office Building Occupant's Guide to Indoor Air Quality

This guide is intended to help people who work in office buildings learn about the factors that contribute to indoor air quality and comfort problems and the roles of building managers and occupants in maintaining a good indoor environment.

Climate Change, Indoor Environment and Health

Climate change is becoming a driving force for improving energy efficiency because saving energy can help reduce the greenhouse gas emissions that contribute to climate change. However, it is important to balance energy saving measures with ventilation...

Overview of the Building Assessment Survey and Evaluation Study

The Building Assessment Survey and Evaluation (BASE) study was conducted over a five-year period from 1994-1998, to characterize determinants of indoor air quality (IAQ) and occupant perceptions in representative public and commercial office buildings.

Methodology for the Building Assessment Survey and Evaluation Study

Between 1994 and 1998, data and samples were collected in each of 100 office buildings using a Standardized Protocol over a one-week period during either the summer or winter season.

Air Sensor Technology and Indoor Air Quality

Air pollutant sensors have different ways of detecting gases and particles in the air. Learn the facts on air pollutant sensors!

Flood Cleanup to Protect Indoor Air and Your Health

During a flood cleanup, the indoor air quality in your home or office may appear to be the least of your problems. However, failure to remove contaminated materials and to reduce moisture and humidity can present serious long-term health risks.

Asthma Awareness

May is Asthma Awareness Month. EPA promotes international, national and local Asthma Awareness Month activities to increase public understanding of asthma and environmental asthma triggers.

Public Service Announcements and Multimedia Resources for Asthma

EPA is committed to raising public awareness of asthma and environmental factors that can affect asthma.

Manage Environmental Asthma Triggers

Provides asthma resources and guidance for health care professionals and others working to improve asthma.

Biological Pollutants Impact Indoor Air Quality Infographic

An infographic provides examples of common biological pollutants found indoors.

OPA-09-2023-0009: Penny Newman Grain Company; Consent Agreement and Proposed Final Order

Consent Agreement and Proposed Final Order in the Matter of Penny Newman Grain Company, 2691 S. Cedar Avenue, Fresno, CA 93725. Docket No. OPA-09-2023-0009.

Shellfish Harvesting

An assessment of shellfish harvesting beaches in the Salish Sea. Part of the U.S. EPA and Environment and Climate Change Canada's Health of the Salish Sea Ecosystem Report.

About the Health of the Salish Sea Report

Background and scientific framework for EPA and Environment Canada's Health of the Salish Sea Ecosystem Report.

Freshwater Quality

An assessment of freshwater quality in the Salish Sea watershed. Part of the U.S. EPA and Environment and Climate Change Canada's Health of the Salish Sea Ecosystem Report.

EPA, Gadsden/Etowah County EMA and City of Gadsden Complete Emergency Cleanup of Cyanide, Other Hazardous Wastes at Gadsden Business

Release Date: March 17, 2026