Visibility measurement for air quality monitoring and estimation of atmospheric particulate matter in a basin of Thailand
The purpose of this work was to introduce the simple measurement of air pollution that was used for the citizen in Chiang Mai and Lamphun (CM&LP) Basin in order to observe the state of air pollution by themselves, particularly, in the winter-dry season. This measurement technique called visibility was obtained through the use of common digital camera. The measured value was compared with the result of automatic air quality monitoring station of Pollution Control Department (PCD) in Chiang Mai during 2006-2007. This technique was explored to use for ambient air quality monitoring (AQM) and estimation of atmospheric particulate matter (PM) during the occurring of air pollution crisis due to the open-burning from harvesting and other related activities in CM&LP Basin. It could be indicated that the ambient air quality was fair-poor to very poor in February and March 2006, and fair-poor to good in April and May, 2006. Moreover, the comparison result of PM concentrations between this visibility measured and PCD measured was found to be closed for the station in the city (CM36t), and slightly differentiated for the suburb station (CM35t) due to the longer distance of its location in the basin. It can be concluded that based on the studied result of Charlson et. al (1968) and the applied criteria for air quality index together with this technique can be used for AQM in Thailand to warn the citizen for avoiding the air pollution crisis in their communities. Particularly, it is suitable measurement for the community that lacks of equipments and technician staff for AQM.
Proceedings of the 3rd WSEAS Int. Conf. on WASTE MANAGEMENT, WATER POLLUTION, AIR POLLUTION, INDOOR CLIMATE,2009
ir quality monitoring ,Atmospheric particulate matter estimated, Chiang Mai and Lamphun basin, Commo