2017 Carbon Monoxide Nitrogen Oxides 
Union of Concerned Scientists
MAY 21, 2025
Reducing emissions from transportation is critical for the climate and for air quality The role of transportation is a significant part of this ongoing work because that sector is the largest emitter of global warming emissions in the country, having surpassed the power sector in 2017. These emissions, which in 2022 were 37.4 Secondary PM 2.5
PA Environment Daily
SEPTEMBER 22, 2022
The authors of the study based their results on industry-disclosed Hazardous Air Pollutants data submitted to the Federal Energy Regulatory Commission as part of natural gas infrastructure applications between 2017-2020. Read more here. Read more here.
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Breezometer
JUNE 21, 2021
The following common pollutants are often found indoors and outdoors, but originate from a range of different sources: VOCs (volatile organic carbon) - a group of gases that could come from either natural sources (e.g. Nitrogen Dioxide (NO2). Carbon Monoxide (CO). the smell of lemon) or man-made sources (e.g
Union of Concerned Scientists
SEPTEMBER 26, 2024
Examples are benzene, hydrofluoric acid, particulate matter, sulfur dioxide, nitrogen oxides, and many, many other toxic pollutants. Between 2017 and 2023 there were over 1500 injuries and seven deaths in 153 refineries across the US. Refining uses many risky industrial processes. Bermix Studio/Unsplash PM2.5:
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