Appraisement of PM(10)Concentrations at Residential Areas Influenced by Informal E-Waste Dismantling Activity, Buriram Province, Thailand

The PM(10)contributed in the e-waste dismantling community at Banmaichaiyaphot District, Buriram Province, was investigated due to the e-waste dismantling houses randomly located neighboring non-e-waste dismantling houses. The sampling was performed at non- and e-wastes dismantling houses and compared with the reference house in Daengyai subdistrict. The 24-hour average outdoor PM(10)concentrations (81.957 +/- 18.724 mu g/m(3)) at e-waste dismantling sites were higher than those of the non-e-waste dismantling houses (80.943 +/- 32.740 mu g/m(3)) and control house (36.717 +/- 19.516 mu g/m(3)). The 24-hour average indoors PM(10)concentrations of the e-waste dismantling houses (116.171 +/- 64.635 mu g/m(3)) showed higher concentrations than those of the non-e-waste dismantling (113.637 +/- 64.641 mu g/m(3)) and reference house (70.907 +/- 22.464 mu g/m(3)), but there were no statistically significant differences (P > .05). Both indoor and outdoor PM10 concentrations between non- and e-waste dismantling houses did not have significant differences, whereas those of non- and e-waste dismantling houses were significantly higher than that of the reference house locating approximately 5 km away. The positive correlation between indoor and outdoor concentrations of non- and e-waste dismantling houses was satisfactory significant with therof .613 and .825, respectively. The results indicate that the existing indoor PM(10)of either non- or e-waste dismantling houses could result from neighborhood e-waste dismantling.