The problem with the toxic smog caused by burning crop remnants as a problem that people living in the North of the country on a Thai experience every year. Especially during the summer months, February-April, regardless of the cause of the burning is caused by forest fire 1) (both intended and unintended) 2) Burning Hell 3 building space) for forest plant debris removal) 4 rice straw and corn chips plain farmers of causing a small fraction of toxic particulates (PM 10) suspension accumulated in the air. Did not agree to because there is very small, with a calm wind during this period and also have a cold from air pressure? Small dust do not fly flyer flying elsewhere. Affect people's health. Residents in the northern part, on the inevitable.
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