Data and Tools
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Interconnected Nature of Cross-State Air Pollution
Map of facilities showing regional ozone transport and the upwind-downwind linkages for ozone.
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Findings of Failure to Submit a Clean Air Act Section 110 State Implementation Plan for Interstate Transport for the 2015 Ozone National Ambient Air Quality Standards (NAAQS)
EPA is finding that seven states failed to submit complete interstate transport State Implementation Plans or SIPs for the 2015 8-hour ozone National Ambient Air Quality Standards
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Rescission of the Finding of Failure to Submit a Clean Air Act Section 110 State Implementation Plan for Interstate Transport for the 2015 Ozone National Ambient Air Quality Standards (NAAQS)
EPA is finding that seven states failed to submit complete interstate transport State Implementation Plans or SIPs for the 2015 8-hour ozone National Ambient Air Quality Standards
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March 2018 Memo and Supplemental Information Regarding Interstate Transport SIPs for the 2015 Ozone NAAQS
Projected air quality modeling results for ozone in 2023: States can use these data to develop their implementation plans.
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Memo and Supplemental Information Regarding Interstate Transport SIPs for the 2015 Ozone NAAQS
Projected air quality modeling results for ozone in 2023: States can use these data to develop their implementation plans.
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Global Change Explorer
GCX is a collection of EPA research products (tools, data, and approaches) relevant to global change impact assessments and response planning for those impacts.
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Power Sector Data Crosswalk
A crosswalk matching EPA/CAPD data on combustion units to EIA's data on generators.
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CHP Policies and Incentives
Access state and federal CHP policies and incentives through dCHPP (CHP policies and incentives database)
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CHP Energy and Emissions Savings Calculator
Download the CHP Emissions Calculator, a tool that calculates the difference between the anticipated carbon dioxide, methane, nitrous oxide, sulfur dioxide, and nitrogen oxide emissions from a CHP system to those of a separate heat and power system.
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Data Use and Citation
Citation for CASTNET data use in publications
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Contact Us about the Benchmarking and Building Performance Standards Policy Toolkit
Contact Us about the Existing Buildings: Energy Benchmarking and Performance Standards Toolkit
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GMD Five-Year Reviews
Sub-page for the GMD where FYRs can be easily viewed and compared.
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One Health Case Studies and Examples
This page contains case studies of EPA and partners using the One Health approach and examples of EPA One Health-related research and collaborations.
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WATERSKMZ Tutorial
The content and purpose of each mapping service WATERS exposes.
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Supplemental GIS Files
Descriptions and links of RPS water mask, wetness index, riparian zone, and HCZ.
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RPS Publications & Citing RPS
Relevant publications about RPS
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ECM for Fluazaindolizine & Degradates in Soil - MRID 50932066
Environmental Chemistry Methods for Fluazaindolizine & Degradates in Soil - MRID 50932066
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Timeline of Carbon Monoxide (CO) National Ambient Air Quality Standards (NAAQS)
See the history of limits to the level of carbon monoxide (CO) in ambient air, set through the NAAQS review and rulemaking process under the Clean Air Act. This includes both primary and secondary standards.
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RadNet Legal Basis
RadNet is a national network monitoring stations that regularly samples the nation's air, precipitation, drinking water, or pasteurized milk for a variety of radionuclides and radiation types.
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“Evaluation of Emerging Technologies on a 1.6 L Turbocharged GDI Engine,” SAE Technical Paper 2018-01-1423, 2018, Graham Conway, Dennis Robertson, Chris Chadwell, Joseph McDonald, John Kargul, Daniel Barba, Mark Stuhldreher
Paper presents the results of the baseline testing on an engine run with a prototype controller and initially tuned to mimic an original equipment manufacturer (OEM) baseline control strategy running on premium fuel (92.8 anti-knock index) and other tests.
