Legal Planet

JUNE 24, 2025

Advocates campaigned for cleaner vehicles to cut pollution, and California led a lawsuit by 16 states seeking to electrify the mail trucks. C alifornia’s intervention “played a big part in stopping USPS from committing to decades of air pollution around the nation,” Liane Randolph, head of the state’s Air Resources Board, said.

Clean Energy

Union of Concerned Scientists

FEBRUARY 10, 2025

UCS/S&P Global Mobility 2024 This accelerated transition to cleaner on-road freight is vital to reduce harmful air pollution generated from trucks, given that theyre the largest source of ozone-forming nitrogen oxides (NOx) pollution in the nation and the largest source of lung-damaging fine particulates from vehicles on the road.

Nitrogen Oxides

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. I have had days where my own asthma has been aggravated for no other attributable reason than pollution escaping from these facilities. 4 [PaEN] -- Upper Makefield Twp.

Natural Gas

PA Environment Daily

APRIL 27, 2025

Posted: April 27, 2025] PA Environment Digest Visit DEPs Teaching Green webpage to learn about more environmental education resources. Visit the PA Environment Digest Calendar Of Events for more opportunities.

Earth Day

PA Environment Daily

MAY 9, 2025

Million In Energy Costs In 2024 [PaEN] -- Environmental Integrity Project, Partners List Industries Requesting Exemptions From EPA Hazardous Air Pollutant Regulations-- 23 In PA [PaEN] NewsClips: -- Capital & Main - Audrey Carleton: Solar Grants Being Held Hostage In PA Legislature As Demand Soars -- Sen. And Saved $44.2

Air Pollution

Union of Concerned Scientists

AUGUST 7, 2025

By adding fine particulates to the air, wildfires can drive unhealthy air quality conditions, as measured by the AQI, shown above. When combined with summer heat and ground level ozone, conditions can worsen further. Large active wildland fires in the United States and Canada as of August 6, 2025.

Ground-Level Ozone

Scientific American

JULY 16, 2025

Skip to main content Scientific American July 16, 2025 4 min read Can Weather Really Trigger a Migraine? Air pollutants like ozone and nitrogen dioxide can cause inflammation in the nerves that play a role in migraines. © 2025 SCIENTIFIC AMERICAN, A DIVISION OF SPRINGER NATURE AMERICA, INC. ALL RIGHTS RESERVED.

Ozone

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. billion, thanks in part to a reduced impact on children. for maize, 4.1% for soybean, and 7.3%

Air Pollution

Acoel

JUNE 29, 2022

The downwind air quality benefits are minimal. The proposed rule would provide de minimus air quality benefits in downwind areas with extremely high costs – estimated by EPA at $22 billion discounted 2016 dollars for the 2023-2042 period. ppb by 2025. enjoyed ozone reductions of 3 to 5 ppb or more. million tons.

Ozone

Legal Planet

MARCH 15, 2023

Additionally, NOx react with other chemicals in the air to create other harmful pollutants, like fine particulate matter and ozone. Gas stoves are a significant driver of childhood asthma , leaking methane even while turned off and releasing as much nationwide climate pollution each year as 500,000 cars.

Nitrogen Oxides

Union of Concerned Scientists

MARCH 23, 2023

NO x also contributes to the formation of ozone (or “smog”), another toxic pollutant. pollution, which are particles with diameters of 2.5 In 2019, air pollution more broadly was responsible for about 6.7 A recent study found that more than 99 percent of the global population is exposed to unsafe levels of PM 2.5

Fossil Fuels

Environmental Progress

SEPTEMBER 12, 2020

None of that means climate change isn’t, and won’t continue to be, a factor in global health, particularly if action to prevent it also reduces air pollution, or removes other health stressors. Carbon emissions are thus following the same trajectory as other air pollutants. For example, the Green New Deal proposed by Rep.

2020

HumanNature

MARCH 31, 2021

Outdoor air pollution accounts for approximately 3.7 – 4.8 AMAP Assessment 2015: Black Carbon and Ozone as Arctic Climate Forcers.” Particulate Matter Air Pollution and Cardiovascular Disease.” link] Climate & Clean Air Coalition. Health Effects of Fine Particulate Air Pollution: Lines That Connect.”

Atmosphere

Columbia Climate Law

DECEMBER 2, 2019

Methane also contributes to the formation of ground-level ozone which is itself a heat-trapping greenhouse gas and, when inhaled by humans, can trigger a variety of health problems from throat irritation and coughing to bronchitis, asthma, and reduced lung function.

Regulations

Law Columbia

MARCH 13, 2023

In its legislative findings, which remain in air quality statutes today , Congress justified air pollution regulation because “the growth of the amount and complexity of air pollution brought about by urbanization, industrial development, and the increasing use of motor vehicles, has resulted in mounting dangers to the public health and welfare.”

Clean Air Act

ESA

JUNE 14, 2021

The Biden administration laid out its timeline for rolling back major Trump environmental rules, but acknowledged that the process of enacting more protective regulations on climate and air pollution and drinking water will take years — if they can estimate the timeline at all. 1816 & H.R.

2021

Union of Concerned Scientists

OCTOBER 15, 2024

For more on other harmful aspects of Project 2025, see this blog. The Heritage Foundation’s blueprint—Project 2025—to dramatically alter the US Environmental Protection Agency should concern you. Project 2025 takes aim at all those protections. Project 2025 takes aim at grants, as well. It does me.

2025