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Improving EPA’s Latest Ozone Transport Rule

Acoel

The agency’s air quality modeling indicates that most areas would receive an ozone reduction of less than 0.1 ppb by 2025. These air quality impacts are minimal compared with the major ozone reductions resulting from the 1998 SIP Call, which resulted in more than 80,000 megawatts of coal capacity being retrofitted with SCRs.

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DEP, Local Partners To Hold 5 Outreach Sessions For Input Into Priority Climate Action Plan Initiatives Starting Dec. 4

PA Environment Daily

DEP has received $3 million in Federal grants to fund the creation of a Priority Climate Action Plan (PCAP) by March 1, 2024, and a Comprehensive Climate Action Plan (CCAP) by July 1, 2025. The PCAP will include ways to reduce GHG emissions that could be put into effect quickly.

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Why the Bay Area’s Zero-Emission Appliance Rule is a Big Deal

Legal Planet

Additionally, NOx react with other chemicals in the air to create other harmful pollutants, like fine particulate matter and ozone. Meanwhile, the California Air Resources Board adopted plans last year to phase out gas water heaters and furnaces statewide by 2030 but will not consider setting regulations to do so until 2025.

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Proposed DEP Regulation Would Require 22% Of Passenger, Light Duty Vehicle Fleet Offered For Sale In PA Be Zero Emission Vehicles Starting In 2025

PA Environment Daily

On October 14, the Department of Environmental Protection presented a proposed regulation that would adopt California’s existing Zero Emission Vehicle Program that requires 22 percent of the new passenger and light duty vehicle fleets offered for sale in the state be zero emission vehicles starting in model year 2025.

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Good News—and Bad—about Fossil Fuel Power Plants in 2023 

Union of Concerned Scientists

NO x also contributes to the formation of ozone (or “smog”), another toxic pollutant. The EPA’s Social Cost of Carbon was adjusted to 2025 to align with the emissions year of the NO x and SO 2 estimates.) A recent study found that more than 99 percent of the global population is exposed to unsafe levels of PM 2.5 micrometers or less.

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DEP Suspends Enforcement Of California Heavy-Duty Diesel Emissions Control Program; Federal Standards Will Still Apply

PA Environment Daily

The Department will re-evaluate this suspension of enforcement no later than July 31, 2023, to determine if the Program is needed to assist the Commonwealth in attainment and maintenance of the National Ambient Air Quality Standards in areas of this Commonwealth and the Ozone Transport Region.

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Summer Air Pollution Trends: Factors Affecting Air Quality

Breezometer

Levels of Ground-level Ozone Pollution Can Increase in Summer. As ground-level ozone requires the presence of sunlight to form, high heat and sunny weather can function to increase concentrations of this particular pollutant. Elevated ground-level ozone may also severely reduce crop yields during their primary growing season.