Ozone, Particle Pollution and Technology - Environmental Professionals Connection

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Why UCS Supporters Are Pressing EPA to Let California Enforce Its Truck Pollution Rules

Union of Concerned Scientists

DECEMBER 1, 2022

I have developed asthma as an adult and being in the vicinity of any diesel engine is enough to set me off, but the long-term health effects for all of us from the ambient particle pollution really cannot be overstated. Truck pollution is killing us, the planet, and it stinks. We in Colorado have many days of problematic ozone.

Nitrogen Oxides

Nitrogen Oxides Clean Air Act Ozone Fossil Fuels

Nearly Half of US Breathes Unhealthy Levels of Pollution—Cars and Trucks Largely to Blame

Union of Concerned Scientists

MAY 21, 2025

It presents air pollution data at the county-level for two pollutants, deadly fine particulate matter (PM 2.5 ) and ground-level ozone. is emitted directly from the tailpipes of gasoline and diesel vehicles, while ozone and even more PM 2.5 and ozone pollution 1. Secondary PM 2.5 In comparison, PM 2.5

Ozone

Ozone Ground-Level Ozone Air Pollution Clean Air Act

Why UCS Supporters Are Pressing EPA to Let California Enforce Its Truck Pollution Rules

Nearly Half of US Breathes Unhealthy Levels of Pollution—Cars and Trucks Largely to Blame

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