Exposure to Particulate Air Pollution and Cognitive Decline in Older Women

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Jennifer Weuve
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Robin Puett
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Joel Schwartz
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Jeff Yanosky
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Francine Laden
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Francine Grodstein
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Chronic exposure to particulate air pollution may accelerate cognitive decline in older adults, although data on this association are limited. Our objective was to examine long-term exposure to particulate matter (PM) air pollution, both coarse ([PM 2.5–10 μm in diameter [PM2.5-10]) and fine (PM <2.5...

Chronic exposure to particulate air pollution may accelerate cognitive decline in older adults, although data on this association are limited. Our objective was to examine long-term exposure to particulate matter (PM) air pollution, both coarse ([PM 2.5–10 μm in diameter [PM2.5-10]) and fine (PM <2.5 μm in diameter [PM2.5]), in relation to cognitive decline.

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A study of 20,000 elderly women concluded that "the effect of a 10 µg/m³ increment in long-term [PM2.5 and PM10] exposure is cognitively equivalent to aging by approximately 2 years". – Weuve et al 2013.