Does most of the smog come from cars?



  1. 0 Votes

    The majority of the worlds photochemical smog is produced by industrial process and by vehicles, which release large amounts of sulfur dioxide which when exposed to sunlight causes particulate matter to form.  When combined with necessary geographic and atmospheric conditions, this results in smog (such as in San Bernadino CA in the US, where there is a high concentration of vehicles in Los Angeles, inland blowing sea breezes and a buffering mountain range that keeps the emissions  trapped and close to the ground).  Smog often appears as an orangey-brown haze and contains many chemicals that are hazardous to animal and plant life.  It can also cause acidified rain. Smog can also result naturally from volcanic eruptions/emmisions.

  2. 0 Votes

    Waterman has the answer. I totally agree to it

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