Spatial Distribution of PM10 and PM2.5 in Ambient Air at E-waste Dismantling Community in Buriram, Thailand
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The spatial distribution of PM10 and PM2.5 was observed at the e-waste dismantling community in Daengyai and Banpao subdistrict, Buriram, Thailand. High and low volume air samplers were used to collect PM10 and PM2.5 in the ambient air, respectively, at e-waste dismantling, non-e-waste dismantling, open dumpsite, and reference area. The sampling was performed during summer and rainy seasons of 2019 for 24 h and seven consecutive days. The average concentrations of PM10 were 49.64 ± 17.71, 55.36 ± 17.46 and 57.61 ± 17.55 µg/m3 at e-waste dismantling, non-e-waste dismantling, and open dump area, respectively. For PM2.5, the average concentrations at e-waste dismantling, non-e-waste dismantling, and open dump area were 29.71 ± 14.28, 33.81 ± 18.85, 30.68 ± 13.53 µg/m3, respectively. PM10 levels at open dumpsite were 1.2 and 1.1 times higher than those of e-waste dismantling area and non-e-waste dismantling area. Meanwhile, ANOVA analysis showed no significant differences (p > 0.05) of PM10 concentration between non- and e-waste dismantling, and open dumpsite. The level of PM2.5 at the e-waste dismantling area was only higher than the reference area but lower than non-e-waste dismantling and open dump area. Besides, there was no statistically significant difference between all sampling sites for PM2.5 concentration. PM10 at non-e-waste dismantling area and open dumpsite were exceeded guidelines of WHO (50 µg/m3), and also PM2.5 (25 µg/m3) of all sampling areas. In this e-waste community, there is no zoning provided for e-waste dismantling activities. Consequently, e-waste dismantling houses were randomly distributed in the community. Consequently, it can be indicated that e-waste dismantling activities led to more PM10 contribution than PM2.5.
KeywordsSpatial distribution E-waste Ambient air pollution PM10 PM2.5
This research was financially supported by National Research Council of Thailand (NRCT) under Thailand Research Challenge Program for WEEE ad Hazardous Waste. The publication of this study was partially supported by the Research Program of Municipal Solid Waste and Hazardous Waste Management, Center of Excellence on Hazardous Substance Management (HSM), the S&T Postgraduate Education and Research Development Office (PERDO), the Office of Higher Education Commission (OHEC). Moreover, we are deeply grateful to all local organizations and houses owner for their kindly cooperation and the involved authorities.
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