Data from the Department of Environment and Natural Resources (DENR) show that northern Metro Manila is the most polluted part of the metropolis mainly due to traffic congestion.And you wonder why there are so many people with asthma, with exacerbated tuberculosis, and other respiratory diseases.
The amount of pollutants in the air over Valenzuela and Congressional Avenue, between Quezon City and Caloocan, exceeded the acceptable standard, the DENR report said.
[DENR] pointed out that the entire metropolis for the past two years had breached the long-term acceptable level of particulate matter in the air, which is 90 ug/Ncm.
In 2003, Metro Manila had 156 ug/Ncm. This increased by 5 percent last year or 160 ug/Ncm.
[INQ7.Net, Jun 29 2005]
Why do non-smokers and those with no family history of cancer die of lung cancer?
Well, here's an obvious hypothesis researchers can pursue.