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Study associates long-term exposure to air pollution with increasing emphysema

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Long-term exposure to ambient air pollutants, especially O 3 (ozone), is significantly associated with increasing emphysema, according to a new study led by the University of Washington, Columbia University and the University at Buffalo. Ground-level ozone is mostly produced when ultraviolet light reacts with pollutants from fossil fuels.

Pollution 223
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10-year study shows how air pollution fosters heart disease; accelerated plaque build-up in arteries

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Long-term exposure to particulate air pollution has been linked to an increased risk of heart disease, but the biological process has not been understood. Participant-specific pollutant concentrations averaged over the years 2000–10 ranged from 9.2–22.6 Agatston units per year (95% CI 1.4–6.8) Agatston units per year (0.9–8.7)—about

Pollution 199
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Harvard study links short-term exposure to PM2.5 with risks of common but rarely studied causes of hospital admissions; substantial economic costs

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The study shows that the health dangers and economic impacts of air pollution are significantly larger than previously understood. Fine particulate air pollution is composed of tiny solids and liquids floating in the air that come from sources such as motor vehicles, coal-fired power plants, and wildfires. Chan School of Public Health.

Pollution 332
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MIT study says combustion emissions cause ~200,000 premature deaths/year in US; vehicles and power generation top sources

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emissions from combustion sources such as industrial smokestacks, vehicle tailpipes, marine and rail operations, and commercial and residential heating throughout the United States cause about 200,000 (90% CI: 90,000–362,000) premature deaths each year, with another 10,000 (90% CI: ?1,000 Industrial emissions contribute to ?41,000

MIT 378
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Canada publishes proposed regulations for criteria pollutants from locomotives

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This marks Canada’s first regulation of air pollutant emissions from locomotives. The emission standards set out in these proposed regulations will also align with those of the United States. The United States started regulating CAC emissions from locomotives in 2000. Background.

Canada 150
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Study Finds Damage, Pollution from Western Wildfires Could Surge With Moderate Global Warming

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By 2055, wildfires in the western United States could scorch about 50% more land than they do now, causing a sharp decline in the region’s air quality, according to a new study by atmospheric researchers at Harvard. Relative to the other scenarios, it leads to a moderate warming of the earth’s average surface temperature, about 1.6

Pollution 150
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Study finds paved surfaces in Houston worsen air quality

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New research by a team from the US, China and Japan focusing on the Houston, Texas area suggests that widespread urban development alters weather patterns in a way that can make it easier for pollutants to accumulate during warm summer weather instead of being blown out to sea. ““The very existence of the Houston area favors stagnation.”

Houston 247