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Sign in Submit a request Español 中文: 繁體版 中文: 简体版 Tiếng Việt 한국어Learn the Issues Science & Technology Laws & Regulations About EPA Home FAQs Ask a Question My AccountContact Us Share Facebook Twitter Google+ Pinterest Topics About EPA Air Certification Chemicals and Toxics Climate Change Data, Methods, and Models Emergencies and Natural Disasters Greener Living Health and Safety Land and Cleanup Laws and Regulations Pesticides Waste Water Browse All Topics Ask a Question Send a question or a comment to our staff. Frequent Questions About EPA About EPA - General FAQs Does EPA handle all environmental concerns? How can I get a speaker for my organization, event, or class? How can I locate the phone numbers and mailing addresses of EPA staff people? How can I search the EPA web site? How do I add, change, or delete a mailing address with the EPA? How do I contact EPA where I live? See all 16 articles Jobs and Internships How do I find out about graduate fellowships, internships, and other student opportunities? Can non-citizens work for EPA? How can I find out about job openings at the EPA? I am a student now, but how can I plan for a career with EPA or as an environmentalist? Libraries How do I access the collections of EPA’s libraries? What are the future plans for the EPA National Library Network? What is the status of EPA libraries? What is the status of EPA’s Chemical Library? What is the status of EPA’s digitization efforts? How is EPA involving its stakeholders in the planning process for the future direction of its Library Network? See all 7 articles Publications and Documents Can I link to the EPA Web site from my home page? How can I find Environmental Impact Statements? How can I make a Freedom of Information Act (FOIA) request? How do I cite a Web page on the EPA Web site? Is the information, pictures or logos on the EPA Web site or in EPA brochures copyrighted? Where can I get publications? See all 8 articles Business and Funding Where can I find information about tax credits or other financial assistance for alternative energy projects? Where can I find information about grants and other funding programs? How do I find out about business and contracting opportunities with EPA? How can EPA help me develop or promote my new technology? How can a small business owner get help understanding requirements and regulations? Air Air - Misc FAQs I have a complaint about dust from dirt roads in my area. What can I do? What are the EPA regulations for crematories and pathological incinerators? Who regulates cloud seeding and weather modification activities? Are there potential effects? Air Pollution How can I find out how much air pollution is released by a certain process? I’m concerned about air quality issues associated with a nearby business. Are there potential health risks? What can I do? What is ozone and where can I learn more about it? Where can I find National Emission Standards for Hazardous Air Pollutants (NESHAPs)? Where is the list of hazardous air pollutants? Which places have the best and worst air quality? Emissions What are the biggest sources of mercury air emissions in the U.S.? What laws apply to mercury? Where can I find historical or archived air quality and emissions data? Where can I find information on the power plant emissions standards? Where can I locate information about the petroleum refining industry and emissions control? Indoor Air Can burning candles affect the air quality in my home? Should I be concerned about a rotten egg smell in my home or workplace? What are the potential sources of formaldehyde emissions in buildings and how do they affect indoor air quality? What causes indoor air problems? What is "black mold"? What is "toxic mold"? Where can I find information on secondhand smoke and keeping my home smoke-free? See all 10 articles Radiation How do we know radon is a carcinogen? What information do you have about radon and radiation in granite countertops? Where can I find information on the risks of living near electrical power lines? What about the safety of products that emit radiation? Where can I locate information about radiation and EPA’s role in protecting people and the environment? What do I do if there is a radiological emergency? Where can I locate information about radon? Transportation and Fuels How can I find out if the replacement of a part of my vehicle is covered under an emissions warranty? How can I improve my gas mileage? How do I find more information on emissions for my motorcycle? I just bought a used car and discovered the catalytic converter is missing. Is that legal? What do I need to do if I want to import a car or have a personal vehicle shipped back to the United States? What factors influence the price of gas? See all 16 articles Certification Certification Can the EPA endorse or test my product? Do products such as fuel economy devices or fuel additives that claim to improve fuel economy or lower emissions really work? Some claim to be EPA-certified. Do water filtration devices need to be registered? Does EPA certify air cleaning devices? Does the EPA certify any products? How can I look up or verify an EPA number? See all 12 articles Chemicals and Toxics Asbestos Where can I get information about asbestos? Chemicals and Toxics - General FAQs I am interested in importing or exporting chemicals. Where can I locate information on this topic? Is there a list of EPA’s Priority Pollutants? What are PCBs and what effects might they have on health and the environment? What are the new chemical law updates under the Toxic Substance Control Act (TSCA)? What are volatile organic compounds (VOCs) and where can I find out more about them? What is benzene and what are its health effects? What is EPA doing about benzene? See all 9 articles Lead Where can I find general information about lead? How can I protect myself and my family from lead poisoning? Where can I find information about lead laws and regulations? Where can I find information about inspecting my home for lead or renovating a home that contains lead? Where can I get more information about EPA’s two lead programs for certifying contractors and accrediting training providers? Mercury What is mercury and how are people exposed to mercury? What are the health effects of mercury exposure? How can I minimize my exposure to mercury and what can be done to reduce the amount of mercury in the environment? What is the EPA doing to reduce exposures to mercury? What should I do if I have mercury in my home or encounter a mercury spill? Where can I find information about mercury in fish or mercury in fish caught in a particular body of water? Climate Change Climate Change Where can I find information on climate change and the greenhouse effect? Where can I find more information on endangered species? Data, Methods, and Models Data, Methods, and Models Where Can I Access EPA Data or Datasets? Is there a list of EPA models? Does the EPA prepare or maintain Safety Data Sheets (SDSs)? Where can I find SDSs? How does EPA use Geographic Information Systems in its work? Does EPA have GIS data available online? Where can I find assistance with emissions monitoring, calculations or control technology? Where can I find EPA Test Methods? Emergencies and Natural Disasters Emergencies and Natural Disasters Gold King Mine Spill How do I report violation of environmental regulations or an environmental emergency? Where can I find information about EPA’s Hurricane Response? Where can I find information about how to recover and reduce risks from flooding? Where can I get information on oil spills? Where can I learn about preventing chemical accidents (chemical risk management)? Greener Living At Home Where can I find information on issues related to purchasing or repairing the air conditioning unit in my home? Does the EPA regulate home heating oil tanks? Are there requirements for products with "green" labels, such as biodegradable,...