PA Environment Daily

NOVEMBER 21, 2024

The commitments under the settlements will significantly reduce pollution from these companies’ operations, including volatile organic compounds that contribute to ground-level ozone, and methane, a potent greenhouse gas.” Its operations stretch from the Great Plains to Appalachia.

Clean Air Act

Union of Concerned Scientists

MAY 21, 2025

Over 156 million people in the US are exposed to unhealthy levels of air pollutants, according to the recently published 2025 State-of-the Air report from the American Lung Association (ALA). It presents air pollution data at the county-level for two pollutants, deadly fine particulate matter (PM 2.5 ) and ground-level ozone.

Ozone

HumanNature

JANUARY 30, 2025

Guest Post by Tucker Melles , 2024-2025 Sustainability Leadership Fellow and Ph.D. We breathe oxygen from the atmosphere, weather systems distribute water, and the ozone in the upper atmosphere protects us from harmful radiation. Secondary organic aerosol is important because it makes up a significant fraction of particulate matter.[5]

Ozone

PA Environment Daily

JULY 10, 2025

VOCs, such as benzene, are harmful to health and can contribute to ground level ozone or smog that damages lungs and can trigger asthma attacks. Where there are oil and gas operations, you can find methane leaking along with volatile organic compounds. 4 [PaEN] -- Upper Makefield Twp.

Natural Gas

Breezometer

AUGUST 16, 2021

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. , releasing choking black smog across Russia’s North-Eastern region.

Air Pollution

PA Environment Daily

NOVEMBER 28, 2023

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.

Ground-Level Ozone

PA Environment Daily

OCTOBER 14, 2021

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.

Nitrogen Oxides