Learn the Issues
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About Managing the Quality of Environmental Data at EPA Region 3
Overview about how Region 3 defines environmental information or data, the quality system PIE and Region 3 quality system staff expertise.
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Reallotment of Fiscal Year 2022 (2nd Round) and Fiscal Year 2023 CWSRF IUA EC Memo
Reallotment of Fiscal Year 2022 (2nd Round) and Fiscal Year 2023 Infrastructure Investment and Jobs Act Clean Water State Revolving Fund Emerging Contaminants Funds
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Clearinghouse for Inventories and Emissions Factors (CHIEF)
Emissions inventories, modeling, and monitoring are the basis for understanding, controlling and tracking stationary sources of air pollution. This technical site provides access to tools and data to support those efforts.
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What is Ozone?
description of ozone for ozone and your patients' health training for health care providers
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Course Outline and Key Points - Ozone
ozone & your patients' health Course Outline and Key Points
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Ozone and Your Patients' Health
The short, evidence-based training course describes the health impacts of ozone pollution and provides tools to help care providers and patients.
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2021 Emissions Modeling Platform Technical Support Document
This document describes how the emission inventories were prepared for air quality modeling by the U.S. Environmental Protection Agency (EPA) for criteria air pollutants to represent the year of 2020.
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Soak Up the Rain: Permeable Pavement
Learn how permeable pavements work to help soak up the rain and reduce runoff. Find information on how to select, install and maintain permeable pavement surfaces.
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Particle Pollution Designations Regulatory Actions
chronological listing of all regulatory actions related to designations for the 2012 fine particle standard
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Outer Continental Shelf Air Permits
Provides information and links to EPA's Outer Continental Shelf air permitting requirements.
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Community
Read about public partcipation opportunities or watch videos from past Community Advisory Group meetings for the Colorado Superfund Site in Pueblo, Coloardo.
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EPA Issues Guidance on Streamlining Clean Air Act Title V Operating Permit Process to Expedite Approvals
EPA issued guidance clarifying the agency’s review process of Clean Air Act (CAA) title V permits to streamline and expedite approvals.
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Environmental Crime Victim Resources - Puerto Rico
A resource listing for environmental crime victims
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Environmental Crime Victim Resources - Pacific Islands
A resource listing for environmental crime victims
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Air Permit Delegation and PSD SIP Approval Status in EPA's Pacific Southwest (Region 9)
Federal air regulations that have been delegated to state or local air pollution control agencies in EPA's Pacific Southwest, Region 9.
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Final Amendments to Delegation of Authority Provisions in the Prevention of Significant Deterioration Permitting Program
finalized amendments to the New Source Review (NSR) Prevention of Significant Deterioration (PSD) permitting program that will allow the EPA to delegate administration of the program to interested and qualified tribal agencies.
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Final Amendments to the Federal Indian Country Minor New Source Review Rule
Review of New Sources and Modifications in Indian Country - Amendments to the Federal Indian Country Minor New Source Review Rule
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EPA Community Grants - Funding
EPA Community Grants
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What RFG parameters should parties monitor as part of their downstream quality assurance programs?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. Parties should monitor the applicable downstream standards as part of their downstream quality assurance programs under § 80.79(c). These are: under the simple model, oxygen and benzene, and RVP in the case of VOC-controlled RFG; and under the complex…
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What volume of gasoline should a sample collected by an independent lab contain?
See More Frequent Questions about Fuels Registration, Reporting, and Compliance Help. EPA believes that a one quart sample is adequate. (7/1/94) This question and answer was posted at