1. Introduction
Smoke haze that annually blankets the whole of Chiang Rai Province, especially in March has become the latest trend that directly affects the air quality as well as brings about adverse health impacts to local people. The major cause of smoke haze situation is a result of open burning, particularly the burning of agricultural residues conducted in forest areas. Located in the flat alluvial plain, where most of the terrain is either flat or has moderate hills with many rivers flowing by, Chiang Rai is considered one of the best areas for agriculture. Most of the people in either flat, or mountainous areas mainly caryy out agricultural activities, especially annual crops like rice, corn, beans, etc. The farmland in Chiang Rai is approximately 35.40% of the total land area. The majority of farmland is rice fields where farmers can plant rice twice a year. This starts in May to August and continues to the harvest season in November and December. After that, most of the farmers usually dispose of agricultural waste by burning rather than plowing, since it is an easy, convenient and faser tt way to prepare land for the next cultivation. Furthermore, they believe that burning agricultural waste can best increase fertility while also treating the soil and killing pests. People living in the highland and forest areas also earn their living by hunting. Fires which are normally set while hunting can easily lead to forest fires. Conclusively, without the construction of proper firebreaks, both kinds of burning can simply result in major forest fires. (Kasemsan Manomaiphiboon,2007; Sirimongkonlertkun and Phonekeo, 2012). At present, to solve the smoke haze problem in Chiang Rai ,there are many organization , both