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California adopts comprehensive strategy to meet federal ozone standard over next 15 years

Green Car Congress

The California Air Resources Board today approved a statewide plan for attaining the federal health-based standard for ozone, typically experienced as smog. The 2022 State Implementation Plan Strategy identifies the state’s control strategy for meeting the federal 70 parts per billion, 8-hour ozone standard over the next 15 years.

Ozone 195
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MECA report finds additional NOx emission reductions from new heavy-duty trucks achievable and cost-effective

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The transportation sector was responsible for over 7 million tons of NO x emissions in the US in 2014, with 50% of this sector’s NO x attributed to heavy-duty on- and off-road vehicles and equipment. NO x is a precursor for both ground level ozone and secondary PM 2.5 Source of data: US EPA (2019). Chart: MECA.

Emissions 291
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EPA Climate Change Adaptation Plan sees likely increase in tropospheric ozone, with more difficulty in attaining NAAQS in many areas

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Among the many climate-related vulnerabilities that can impact its mission, the US Environmental Protection Agency (EPA) cites a likely increase in tropospheric ozone pollution as potentially making it more difficult to attain National Ambient Air Quality Standards ( NAAQS ) in many areas with existing ozone problems.

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ICCT finds growth in shipping in Arctic could increase pollutant emissions 150-600% by 2025 with current fuels

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Comparison of the potential reduction in emissions with the application of lower sulfur 0.5% While that report projected vessel activity, it did not explore the environmental impacts of increased shipping in terms of air emissions or the potential climate impacts from increases in short-lived climate pollutants such as black carbon.

Pollution 150
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EPA Proposes Transport Rule to Cut Pollution from Power Plants in 31 States and DC; New Approach for Pollution Reduction

Green Car Congress

The US Environmental Protection Agency (EPA) is proposing regulations employing the “good neighbor” provision of the Clean Air Act to reduce interstate transport of upwind state emissions from power generation that contribute to air quality problems in downwind states. NO x emissions would drop by 52%.

Pollution 218
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The New Supersonic Boom

Cars That Think

They're preparing prototypes for flight and they've got designs for full-blown airliners capable of carrying scores of passengers. Shortly afterward, the federal government issued a contract to Boeing, which had prevailed over Lockheed and others in a design competition, to develop such a plane.

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US and UK researchers report direct measurement of key atmospheric reactant; more rapid formation of secondary aerosols

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succeeded in isolating the simplest CI and reported direct kinetic measurements of its reactions with water, NO, NO 2 , and SO 2. Dr. George Marston from the University of Reading (UK) notes that: The Criegee intermediates (CIs) are central to understanding the reactions of ozone with unsaturated compounds. Welz et al.

Ozone 268