Short-term Associations of Fine Particulate Matter...

Research studies on wood smoke and other air pollution.

Short-term Associations of Fine Particulate Matter...

Postby Wilberforce » Thu Aug 09, 2012 10:26 pm

The Temporal Lag Structure of Short-term Associations of Fine Particulate Matter Chemical Constituents and Cardiovascular and Respiratory Hospitalizations
Kim, et al
http://www.ncbi.nlm.nih.gov/pmc/?term=1 ... hp.1104721
The patterns of temporal lag structure of hospital admissions varied by PM2.5 chemical constituents, although overall the contrast between cardiovascular and respiratory disease outcomes was similar across constituents. EC and OC showed more obvious immediate effects than did sulfate and nitrate. The immediate lag effects estimated for cardiovascular diseases were most distinct for EC and OC. Delayed patterns of increased RRs for asthma began at later lags for sulfate and nitrate than for EC and OC. EC and OC are of particular interest as markers of combustion. In particular, EC is often considered a marker of diesel exhaust, although other combustion sources such as wood burning also contribute to EC [Health Effects Institute (HEI) 2010; Schauer 2003].

note "EC" elemental carbon "OC" organic carbon
Conclusion: In general, PM2.5 chemical constituents were found to have more immediate estimated effects on cardiovascular diseases and more delayed estimated effects on respiratory diseases, depending somewhat on the constituent.
• The Surgeon General has determined that there is no safe level of exposure to ambient smoke!

• If you smell even a subtle odor of smoke, you are being exposed to poisonous and carcinogenic chemical compounds!

• Even a brief exposure to smoke raises blood pressure, (no matter what your state of health) and can cause blood clotting, stroke, or heart attack in vulnerable people. Even children experience elevated blood pressure when exposed to smoke!

• Since smoke drastically weakens the lungs' immune system, avoiding smoke is one of the best ways to prevent colds, flu, bronchitis, or risk of an even more serious respiratory illness, such as pneumonia or tuberculosis! Does your child have the flu? Chances are they have been exposed to ambient smoke!
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