Learn the Issues
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Waste Emissions Charge
Through the Waste Emissions Charge (WEC), EPA will impose and collect a charge on methane emissions from oil and gas facilities.
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A company wishes to blend RFG containing ethanol with RFG containing an ether, such as MTBE. May this blending occur during the VOC-controlled season? During the non-VOC-controlled season?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Under § 80.78(a)(8), and as explained in the answer to Prohibitions Question 1 in the September 26, 1994 Question and Answer Document, RFG may not contain a mixture of ethanol and any other oxygenate during the VOC control season…
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In a computer-controlled in-line blending operation, adjustments to blending volumes and other blending parameters are made on an ongoing basis to keep the gasoline being blended on-spec. Normally, these adjustments are made automatically by a computer. However, some aspects of the blending operation must be placed in a manual mode when instrument problems arise. The operator is able to enter values (transfer volumes, blend volumes) in the case of such a manual mode operation. The computer records when manually-entered adjustments are made. Is this acceptable data control to the EPA?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. It would seem to be appropriate for the software to indicate when data are manually entered, who entered the data and when it was entered. This information should be recorded with the file for the batch and available for…
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MPRSA Special Permits
Special permits under the MPRSA may be issued by the EPA for ocean dumping of specific materials. Examples of activities permitted under MPRSA special permits are provided.
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EPA Removes Hundreds of Drums, Completes Cleanup at Former Compounders Site in Howell Township, New Jersey
EPA has completed its cleanup work in Howell Township, New Jersey, removing more than 600 drums and approximately 1,380 containers, demolishing seven storage tanks, and addressing contamination that posed potential risks to the surrounding community.
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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.
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Evaluating Greenhouse Gas (GHG) Reduction Measures
Evaluating Greenhouse Gas (GHG) Reduction Measures
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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.
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What about radon and radioactivity in granite countertops?
Does the EPA believe there is a danger of radon gas or associated radiation being emitted from granite countertops? It is possible for any granite sample to contain varying concentrations of uranium and other naturally occurring radioactive elements. These elements can emit radiation and produce radon gas, a source of…
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Vietnamese Version of Flood Cleanup and the Air in Your Home Booklet
EPA 402-K-06-006-VIE: This booklet, in Vietnamese, tells you how to clean up after a flood and how to prevent indoor air problems. Revised August 2017
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Flood Cleanup and the Air in Your Home Booklet
EPA 402-K-07-002: This booklet tells you how to clean up after a flood and how to prevent indoor air problems.
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Mold Remediation in Schools and Commercial Buildings Guide: Chapter 3
The content on this page is based on the guide by the same name. However, updates have been made to some resources and links. Here you can find information on mold prevention and remediation.
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Indoor airPLUS Technical Guidance
This page provides links to technical guidance for Indoor airPLUS builders, raters and providers
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IAQ Tools for Schools Resources
Different resources to improve IAQ in schools. Includes Master Class Training Webinar series, different IAQ publications about schools and videos about IAQ in schools.
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The Importance of Asthma and Health Programs in Improving Academic Performance
School air quality has a major impact on asthma and other respiratory illnesses. Airborne allergens or irritants frequently trigger asthma attacks, yet environmental assessments demonstrate that schools often harbor allergen levels at or close to the th
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Parents, Students, and Healthy Indoor School Environments
School-aged children spend a great deal of time inside school buildings. Parents can play an important role in creating healthy indoor school environments. Parents and students alike can make a powerful case for protecting health in schools.
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Enhancing Coordination and Communication with States on Review and Approval of Aquifer Exemption Requests
The memorandum in the link provided is for Underground Injection Control (UIC) program managers and is intended to promote a consistent and predictable process for the review of aquifer exemption requests under the Safe Drinking Water Act (SDWA).
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Importance of Smokefree Policies Factsheet
This factsheet discusses the importance and benefits of smokefree policies.
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Health Risks of Secondhand Smoke and Aerosols Factsheet
This factsheet discusses the health risks of secondhand smoke and aerosols.
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Use and Care of Home Humidifiers
Tips for the Use and Care of Home Humidifiers