Abstract Area of study both in Chiang Mai Both provinces have again and again every year, smog problem. There are many possible reasons why, for example, comes from a wildfire burning man's things. Factors that affect the occurrence of smog in areas such as climate, topography, temperature area rainfall utilization of land, many of the units have been closely monitor and be aware of. This is all most of all because he made the North occurred in several provinces, so I had do in Chiang Mai because of the curious detail, really why it happened again and again and find an area vulnerable to a further in-depth analysis.
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