tag:blogger.com,1999:blog-2532313388110978122.post3686227055872705639..comments2023-10-28T00:47:18.069-07:00Comments on Weeks Population: And You Thought Beijing's Air Was Bad!John Weekshttp://www.blogger.com/profile/04069566137451684355noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-2532313388110978122.post-73475519153813383532015-02-17T10:58:35.788-08:002015-02-17T10:58:35.788-08:00nice chart! the air quality in New Delhi looks ho...nice chart! the air quality in New Delhi looks horrendous!! I know that when I visit the cities of E. Africa - it is going to be a battle on the sidewalk. The main problem is the large number of old diesel engines - trucks, buses. These diesel "poison factories" spew clouds of black smoke directly into the faces of pedestrians. And it is common - the 4-wheel offenders are everywhere. Scientific studies have shown that the toxins in bad diesel smoke are some of the absolute worst - for carcinogenic effects. So the rising levels of city air pollution are definitely causing an increase in respiratory diseases and cancers. Environmental quality standards are BADLY needed in developing countries ... yet ironically this is where they are the most nonexistent. <br /><br />Pete, Redondo Beach, CAAnonymousnoreply@blogger.com