Shah, Noman Ali creator Xue, Wenchao Chairperson Sasaki, Nophea Examination Committee Guerrero Cruz, Simon Examination committee Government of Japan Scholarship Donor text series technical report th Pathum Thani, Thailand Asian Institute of Technology 2022 continuing eng 31 leaves : ill. This study is conducted to investigate the concentration and physical characteristics of microplastics present in one of the surface water bodies of Thailand. For conducting this study, canals were selected. These canals receive wastewater emitted from Bang Chan Industrial Estate. The research study is conducted for a duration of three months. Five distinct points were selected for sampling. All the points of sampling were separated into four sites for each canal. Two points were selected upstream and two of them were located downstream. The fifth point was selected depending upon the direction of discharge. The highest amount of microplastic is found at site 5. Canal A was found to have more concentration of microplastics as compared to canal B. Moreover, the concentration of microplastics downstream was much higher in canal A as compared to the concentration of microplastics upstream. A research study submitted in partial fulfillment of the requirements for the degree of Master in Marine Plastics Abatement Research studies project report (M.) - Asian Institute of Technology, 2022 Microplastics Thailand Bangkok Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B17487 http://203.159.5.9/ait-thesis/detail.php?q=B17487 221005 20260817161346.0