Smog usually consists of soot particles, sulfur dioxide, and other compounds. The citizens of Los Angeles initially blamed the pollution on oil refineries and factories, and they were partly right.

marking the beginning of our understanding of the urban air pollution crisis. Los Angeles followed with its distinctive photochemical smog in the 1970s due to automobile emissions reacting with ...

Smog, pollution and greenhouse gases are present all over the world and cause air quality to deteriorate. However, humans only distinguish this situation when it is too late and the air becomes ...

Photochemical smog is the most common ... especially those exposed to polluted air. In Delhi, air pollution contributes to 10,000 to 30,000 premature deaths annually, according to the Centre ...

The pollution ... air should be a universal right. I've started to really worry about what living in Bangkok and many other parts of Thailand is doing to little lungs long term. You can feel the ...