... Science, 10 , p.p. 11 99 -12 11 Tan, K. C., Lim, H. S., MatJafri, M. Z. and Abdullah, K., 2 010 , Landsat data to evaluate urban expansion and determine land use/land cover changes in Penang Island, ... Monitoring, Control and Effects of Air Pollution 80 degree of confidence. A linear relationship between PM10 and AOT was found by this study. Findings can be used to analyze the air pollution ... generate AOT and PM10 maps over Penang Island, Malaysia by using a handheld spectroradiometer. The transmittance values were measured using a handheld Monitoring, Control and Effects of Air Pollution...