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  • Where can I download hourly emissions data from continuous monitoring?

    Hourly emissions data files are available from the Clean Air Markets Division of EPA, collected as part of 40 CFR Part 75. The download location has changed in February, 2023. The new location is https://campd.epa.gov/data/bulk-data-files . Once on this new site, use the menu (at the left) and the Keyword…

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  • What are dioxins and how common are they?

    Dioxins are found throughout the world in the environment. Dioxins are a result of industrial processes and other activities such as burning fuels like wood, coal, or oil. Dioxins are called persistent organic pollutants, meaning they take a long time to break down once they are in the environment.

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  • I have heard about research being conducted by the University of Kentucky. What is the health tracking survey?

    University of Kentucky College of Public Health researcher Dr. Erin N. Haynes and her team received a grant from the National Institutes of Health (NIH) to conduct a long-term health study with and for the residents of East Palestine and the surrounding area. The first step is to learn more…

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  • What kind of screening does the East Liverpool City Hospital's East Palestine Clinic offer related to the train derailment?

    The screening tests are based on recommendations by specialists in toxicology to monitor anyone exposed to substances from the train derailment. The tests include urine and blood tests. A urinalysis is done that looks for problems involving the kidneys. The blood tests include a complete blood count (CBC) and a…

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  • Are any other tests ordered?

    There may be based on the evaluation by the physician or other healthcare provider. If a patient is having specific symptoms there may be other tests needed. For example, if a patient is short of breath, they may need to have a chest x-ray or other tests done to evaluate…

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  • How complete are the data in the National Emissions Inventory?

    While the goal of the National Emissions Inventory (NEI) program is to include all emissions data, there are always challenges meeting this goal. The answer about completeness of coverage of sources depends on the emissions sector and pollutant. In general, the criteria air pollutants and precursors (CAPs) are expected to…

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  • Where is more information available about emissions estimation methods used by the EPA?

    For criteria air pollutants and precursors as well as for hazardous air pollutants, the methods are described in the technical support document (TSD) for the latest National Emissions Inventory (NEI) available from the main NEI page . For greenhouse gas emissions, you can find greenhouse gas inventory methods from the…

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  • Are there specific medical tests available for vinyl chloride?

    Medical tests to determine if you have been exposed to vinyl chloride include measuring vinylchloride in your breath but must be collected shortly after exposure. The test is not useful forvery low levels of exposure. Thiodiglycolic acid, which is a breakdown product of vinyl chloride detected in urine, can also…

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  • How are emissions trends compiled?

    For criteria air pollutants and precursors, the emissions trends are based on the triennial National Emissions Inventory data, with some interim year data included for non-triennial years. The methods and interim-year approaches are described on the “Development of Data” tab included with the data provided on the Air Pollutant Emissions…

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  • How do I determine what SCCs have changed between inventory years?

    These are available in the EIS (Reporting Code table) or public website: https://sor-scc-api.epa.gov/sccwebservices/sccsearch/ Filter on “last inventory year” to remove SCCs no longer active. If this column has a date in it, then the SCC has been retired as of that date. The “last updated date” (column J) indicates when…

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  • Where are the NAICS/ SIC and SCC codes changes that have been implemented for the 2017NEI?

    Please refer to the NEI webpage for 2017 documentation , and follow the link for Appendix 2 - 2017 NEI Plan Code Changes. That Excel file describes anticipated changes for the SCCs and NAICS and includes a helpful read me. I'll just note in the next NEI/EIS email that SCC…

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  • What are SVOCs (and VOCs)?

    Volatile organic compounds (VOCs) are a group of chemicals that can readily transform into vapor (a gas) at lower temperatures. Semi-volatile organic compounds (SVOCs) are more likely to be liquids or solids at lower temperatures. Some examples of products that include SVOCs are many pesticides, oil-based products, and fire retardants…

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  • How often should these screening tests be done?

    We recommend having these tests every 6 months for the first year and then every year after that. This will allow the doctor or other healthcare provider to monitor changes in your health. This week’s questions are answered by Dr. Gretchen Nickell, Chief Medical Officer of the East Liverpool City…

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  • Where can I find biomass emission limits for biomass burning in industry? I am looking for limits on particulate matter, SO2 and NOx.

    For information on EPA air emission standards for industrial sources, please visit this website. If you need additional help with specific questions, please use the contact us link on one of these pages to inquire further with staff in the emission standards program. New Source Performance Standards

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  • How often are the NEI data updated and how frequently are the data published?

    The full NEI is created for every third inventory year (e.g., 2008, 2011, 2014, and 2017). The data for each version has been updated two times each for the 2008, 2011, and 2014 NEI cycles. For the 2017 NEI and beyond, the EPA is trying to publish only a single…

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