From Manila Times | February 20, 2013
Research published in European Heart Journal showed the link between exposure to PM 2.5 and heart attacks. Study involved some 154,000 patients hospitalized in Wales and England hospitalized for heart attack. The patients were followed up after release. Some 40,000 died later.
PM 2.5 is 30x smaller than human hair (and nearly invisible to human eye) and is seen as cause of respiratory problem because they can lodge in lungs, but their impact on cardiac health is not well understood (they can join RBC and be travel to the heart?) PM 2.5 comes from coal and oil used in power generation, and from gasoline and diesel internal combustion engines.
The average exposure in UK for the PM 2.5 stood at 11.0 with the highest in London at 14.00. Who sets the standard at 10 and 25 as maximum exposure in a 24 hour period. In Beijing last month, as seen in NASA satellite, PM 2.5 reached 993, 40x the limit set by WHO
Air pollution kills.
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