Environmental Protection Ground-Level Ozone Renewable Energy 
Union of Concerned Scientists
MAY 15, 2025
Although warehouses themselves are often not significant sources of air pollution, they attract high concentrations of heavy-duty trucks, which are the nations largest source of nitrogen oxides, a key contributor to ground-level ozone pollution.
PA Environment Daily
FEBRUARY 28, 2023
On February 28, the Department of Environmental Protection awarded $1.5 It also helps lower the level of carbon dioxide, one of the greenhouse gases heating up the climate, in the air. Gasoline and diesel vehicles generate 47 percent of nitrogen oxides emissions in Pennsylvania, contributing to ground-level ozone.
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Union of Concerned Scientists
SEPTEMBER 26, 2024
Based on data from the Environmental Protection Agency (EPA) on toxic air and water emissions for a large number of industrial facilities across the US, refineries are the 10 th most toxic industry , in a toxicity ranking list with over 200 grades. Refineries are among the most toxic industries in this country.
Union of Concerned Scientists
OCTOBER 15, 2024
The Heritage Foundation’s blueprint—Project 2025—to dramatically alter the US Environmental Protection Agency should concern you. This, along with many other chemicals, like diesel particulates and ground-level ozone that form soot and smog, and metals like lead in paint and drinking water, are regulated by the EPA to keep us safe.
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