I just got some info from a friend on air quality in Metro Manila. The world health organisation suggests that to prevent ill health air pollution should be at less than 20 micrograms of particulate matter per cubic meter. Long term exposure to a pollutant level of 70 micrograms of particulate matter per cubic meter or greater significantly increases the risk of contracting a respiratory related illness. Metro Manila has an average of 138, the dirtiest is the stretch of Edsa with 282, over 3 times the w h o target. It’s probably not a good idea to live around Edsa.
Interesting data at http://www.portfolio.mvm.ed.ac.uk/studentwebs/session4/27/citydiff.htm
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Down The Road 