Short-term Associations between Fine and Coarse Particulate

Research studies on wood smoke and other air pollution.

Short-term Associations between Fine and Coarse Particulate

Postby Wilberforce » Thu Jun 20, 2013 9:22 pm

Short-term Associations between Fine and Coarse Particulate Matter and Hospitalizations in Southern Europe: Results from the MED-PARTICLES Project
Stafoggia et al

Background: Evidence on the short-term effects of fine and coarse particles on morbidity in Europe is scarce and inconsistent.

Objectives: To estimate the association between daily concentrations of fine and coarse particles with hospitalizations for cardiovascular and respiratory conditions in 8 Southern European cities, within the MED-PARTICLES project.

Methods: City-specific Poisson models were fitted to estimate associations of daily concentrations of particulate matter with aerodynamic diameter < 2.5 µm (PM2.5), 10 (PM10) and their difference (PM2.5-10), with daily counts of emergency hospitalizations for cardiovascular and respiratory diseases. Pooled estimates were derived from random-effects meta-analysis and the robustness of results to co-pollutant exposure adjustment and model specification was evaluated. Pooled concentration-response curves were estimated using a meta-smoothing approach.

Results: We found significant associations between all PM fractions and cardiovascular admissions. Increases of 10-µg/m3 in PM2.5, 6.3-µg/m3 in PM2.5-10 and 14.4-µg/m3 in PM10 (lag 0-1 days) were associated with increases in cardiovascular admissions of 0.51% (95% CI: 0.12, 0.90%), 0.46% (95% CI: 0.10, 0.82%) and 0.53% (95% CI: 0.06, 1.00%), respectively. Stronger associations were estimated for respiratory hospitalizations, ranging from 1.15% (95% CI: 0.21, 2.11%) for PM10 to 1.36% (95% CI: 0.23, 2.49) for PM2.5 (lag 0-5 days).

Conclusions: PM2.5 and PM2.5-10 were positively associated with cardiovascular and respiratory admissions in 8 Mediterranean cities. Information on the short-term effects of different PM fractions on morbidity in Southern Europe will be useful to inform European policies on air quality standards.

• 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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