Vehicles, Air Pollution and Human Health

The document highlights that approximately 150 million people in the United States live in areas failing to meet federal air quality standards, with passenger and heavy-duty vehicles serving as major sources of pollutants like nitrogen oxides and particulate matter. It links these emissions to severe health outcomes, including respiratory ailments, heart disease, and up to 20,000 premature deaths annually from PM2.5. The text argues that while clean technologies and emission standards have significantly reduced pollution since 1970, current administrative rollbacks of policies like the Clean Air Act threaten these public health gains.

• Approximately 150 million residents of the United States live in regions that do not comply with federal air quality standards.
• Transportation is a primary driver of local pollution, accounting for nearly 50% of nitrogen oxides and nearly 33% of volatile organic compounds, including benzene.
• Fine particulate matter (PM2.5) originating from transportation causes up to 20,000 premature deaths every year and is linked to neurological impairment, increased Alzheimer's risk, and fetal development issues.
• Vehicle emission standards have achieved a 99 percent reduction in pollution from cars and trucks when compared to models from 1970.

APA

Union of Concerned Scientists (2014). Vehicles, Air Pollution and Human Health. https://www.ucs.org/resources/vehicles-air-pollution-human-health

Chicago

Union of Concerned Scientists. Vehicles, Air Pollution and Human Health. 2014. https://www.ucs.org/resources/vehicles-air-pollution-human-health.

Wikipedia

{{cite report |author=Union of Concerned Scientists |title=Vehicles, Air Pollution and Human Health |date=18 July 2014 |url=https://www.ucs.org/resources/vehicles-air-pollution-human-health |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{unionofconcernedscientists2014vehicles, author = {{Union of Concerned Scientists}}, title = {{Vehicles, Air Pollution and Human Health}}, institution = {Union of Concerned Scientists}, year = {2014}, month = jul, url = {https://www.ucs.org/resources/vehicles-air-pollution-human-health}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }