Science & Technology

Indoor Air Quality Science

Understand indoor air in homes, schools, and offices. Most of us spend much of our time indoors. The air that we breathe in our homes, in schools, and in offices can put us at risk for health problems. Some pollutants can be chemicals, gases, and living or

The Indoor Microbiome

Microbiomes page describes report and findings from the National Academies of Sciences, Engineering, and Medicine

Section 16: Air - Likelihood of Release

Learn about the air migration pathway for evaluating HRS scores and the likelihood of hazardous gas and particulate substance release.

Report: Management Implication Report: Some States Failed to Conduct Required Financial Audits of Their State Revolving Funds

Management Implication Report: Some States Failed to Conduct Required Financial Audits of Their State Revolving Funds

Retrieving and Printing NSCEP Publications

The details of how to obtain documents available through the National Service Center for Environmental Publications (NSCEP), whether ordered online, or by other channels are covered.

Report: The EPA Needs to Improve the Verification of Land-Use Controls at Resource Conservation and Recovery Act Corrective Action Facilities

Report: The EPA Awarded WIIN Act Funds Consistent with Nearly All Guidance and Improved Its Processes to Increase Transparency of Funding Decisions

Report: Most States Did Not Provide Some Required Fee Information in the Intended Use Plan or Annual Report for Their Clean Water State Revolving Funds

Report: The CSB Complied with Improper Payment Requirements in Fiscal Year 2023

Designation and NAAQS Information Related to SO2 (2010 Standard)

Report: Inadequate Execution of the 7th DWINSA Lead Service Line Questionnaire Led to Flawed Data Being Used to Allot Lead Service Line Replacement Funds

Report: Management Implication Report: Poor Data Management Hinders Oversight of State Clean and Drinking Water State Revolving Fund Programs

Report: Management Implication Report: Cybersecurity Concerns Related to Drinking Water Systems

Report: U.S. Chemical Safety and Hazard Investigation Board Fiscal Years 2024 and 2023 Financial Statement Audit Controls

U.S. Chemical Safety and Hazard Investigation Board Fiscal Years 2024 and 2023 Financial Statement Audit

Semiannual Report: The EPA Should Improve Monitoring of 2022 Clean School Bus Rebate Recipients’ Use of Funds and Deployment of Buses and Infrastructure

Report: The EPA Should Improve Monitoring of 2022 Clean School Bus Rebate Recipients’ Use of Funds and Deployment of Buses and Infrastructure

The EPA Should Improve Monitoring of 2022 Clean School Bus Rebate Recipients’ Use of Funds and Deployment of Buses and Infrastructure

Report: Evaluation of Trends in Resource Conservation and Recovery Act State-Level Enforcement Data

Report: OIG Report to the Office of Management and Budget on the EPA’s and CSB’s Implementation of Recommendations Related to Purchase and Travel Card Programs

In compliance with the Act, the U.S. Environmental Protection Agency Office of Inspector General conducts periodic audits, assessments, and reviews of the travel and purchase card programs at the EPA and the U.S. Chemical Safety and Hazard Investigation Bo

Report: EPA Guidance Addresses Implementation Requirements for Infrastructure Investment and Jobs Act for Drinking Water State Revolving Fund Emerging Contaminants Funding, but Clarification Is Needed Before More States Spend Funds

Report: EPA Guidance Addresses Implementation Requirements for Infrastructure Investment and Jobs Act for Drinking Water State Revolving Fund Emerging Contaminants Funding, but Clarification Is Needed Before More States Spend Funds

Report: Independent Audit of the EPA’s Fiscal Years 2022 and 2021 (Restated) Toxic Substances Control Act Service Fee Fund Financial Statements