Atmosphere, Nitrogen Oxides and Particle Pollution - Environmental Professionals Connection

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

Union of Concerned Scientists

MAY 21, 2025

are formed indirectly in the atmosphere from other toxic pollutants also emitted from tailpipes. Transportations disproportionate contribution to local pollution is further evidenced by the fact that up to 45 percent of NO x and up to one-third of VOCs from all sources comes from on-road vehicles. Secondary PM 2.5

Ozone

Ozone Ground-Level Ozone Air Pollution Clean Air Act

Do We Dare Continue to Flare?

Vermont Law

APRIL 8, 2022

11) Global warming, in part, is a result of greenhouse gas emissions into the atmosphere. 15) Although Methane’s presence in the atmosphere is less than Carbon dioxide, during a 100-year timeframe, according to the EPA, Methane holds twenty-five times the heat in the atmosphere than Carbon dioxide. (16)

Carbon Dioxide

Carbon Dioxide Nitrogen Oxides Natural Gas Clean Air Act

Environmental Professionals Connection

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

Do We Dare Continue to Flare?

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