Tougher rules for air quality likely soon - China Daily
Tougher rules for air quality likely soon - China Daily
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Tougher rules for air quality likely soon
China Daily, China Ozone at the ground level, which is formed when hydrocarbons and nitrogen oxides (NOx) combine in the presence of sunlight, causes photochemical smog and also harms people's health. Several major cities, including Beijing, Shanghai, Guangzhou and … |
Source: news.google.com
A Forest of Chimneys - San Francisco Chronicle
![]() San Francisco Chronicle |
A Forest of Chimneys
San Francisco Chronicle, USA In the summer of 1998, the capital city cowered under a relentless cloud of smog. The decorative arches that once graced many of Beijing's streets had been demolished in the fifties, denigrated as obstacles to traffic. Factories were more prevalent … |
Source: news.google.com























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