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Nearly Half of US Breathes Unhealthy Levels of Pollution—Cars and Trucks Largely to Blame

Union of Concerned Scientists

It presents air pollution data at the county-level for two pollutants, deadly fine particulate matter (PM 2.5 ) and ground-level ozone. is emitted directly from the tailpipes of gasoline and diesel vehicles, while ozone and even more PM 2.5 and ozone pollution 1. Internal combustion vehicles are largely to blame, since PM 2.5

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Railroads Are Running Dirty Diesel Trains Through Communities and No One Is Doing Anything About It

Union of Concerned Scientists

We can rebuild it—we have the technology (and lax regulations) Under the Clean Air Act, the Environmental Protection Agency sets emissions standards for engines in new locomotives. This activity leads to harmful articulate matter pollution (PM 2.5 ) and smog (in the form of ozone, O 3 ), which impacts health.

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Supreme Court Sidelines Science, Threatens Public Health: These Rules-in-Progress Show What’s at Stake

Union of Concerned Scientists

When our family participated in the Science March at the Minnesota Capitol in 2017, one of our signs said, “What do we want – Science Based Policy! Hydrofluorocarbons (HFCs) were developed to replace a type of chemical that impacted the ozone layer in our upper atmosphere, but these replacements are potent greenhouse gases.

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DEP Invites Comments On A Proposed Declaration Of An Exceptional Air Pollution Event Due To 2023 Wildfire Smoke Impacts

PA Environment Daily

The Department of Environmental Protection published notice in the April 27 PA Bulletin inviting public comments on a proposed declaration of an Exceptional Air Quality Event due to 2023 wildfires from Canada and New Jersey causing elevated levels of nitrogen oxides and volatile organic compounds impacting ozone pollution in Pennsylvania.

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Air District Targets Southern California Logistics Industry

Clean Energy Law

The Basin does not meet the state or federal ambient air quality standards for ozone and particulate matter, and existing regulations have to date proved insufficient to bring the Basin into compliance. The SCAQMD is the local agency responsible for attaining these clean air standards in the Basin. Facility-Based Mobile Source Measures.

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DEP Invites Comments On Declaring An Exceptional Event Related To 2023 Canadian Wildfires And Impacts On PA Air Quality

PA Environment Daily

The Department of Environmental Protection published notice in the February 15 PA Bulletin inviting comments on an analysis designating an Exceptional Event under the federal Clean Air Act related to Canadian wildfires in June and July 2023 and their impact on air quality in Pennsylvania. Click Here for a copy of the analysis.

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July 2017 Updates to the Climate Case Charts

Law Columbia

Environmental Protection Agency (EPA) lacked authority to administratively stay portions of new source performance standards for the oil and gas sector for which it had granted requests for reconsideration. filed June 5, 2017; emergency motion for stay granted July 3, 2017). June 29, 2017). June 28, 2017).