PMID- 37198415 OWN - NLM STAT- MEDLINE DCOM- 20231023 LR - 20231023 IS - 1432-0703 (Electronic) IS - 0090-4341 (Linking) VI - 85 IP - 3 DP - 2023 Oct TI - Identify Primary Air Pollution Sources of BTEX by Using Positive Matrix Factorization (PMF): A Case Study of Ho Chi Minh City, Vietnam. PG - 263-276 LID - 10.1007/s00244-023-01002-4 [doi] AB - Ho Chi Minh City (HCMC) is one of the main socioeconomic and financial centers of Vietnam. The city also faces serious air pollution. However, the city polluted with benzene, toluene, ethylbenzene, and xylene (BTEX) has rarely been studied. We used positive matrix factorization (PMF) to analyze BTEX concentrations measured at two sampling locations to identify the main sources of BTEX in HCMC. The locations represented residential area (i.e., To Hien Thanh) and industrial area (i.e., Tan Binh Industrial Park). At the To Hien Thanh location, the average concentrations of benzene, ethylbenzene, toluene, and xylene were 6.9, 14.4, 4.9, and 12.7 microg/m(3), respectively. At the Tan Binh location, the average concentrations of benzene, ethylbenzene, toluene, and xylene were 9.8, 22.6, 2.4, and 9.2 microg/m(3), respectively. The results showed that PMF was a reliable model for source apportionment in HCMC. Traffic activities were the main sources of BTEX. Besides, industrial activities also contributed to BTEX emissions, especially the location near the industrial park. The majority of BTEXs at the To Hien Thanh sampling site come from traffic sources accounting for 56.2%. Activities from traffic and photochemical reactions (42.7%) and industrial sources (40.5%) were the main sources affecting BTEX emissions at the sampling site of Tan Binh Industrial Park. This study can be used as a reference for mitigation solutions to reduce the BTEX emission in HCMC. CI - (c) 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Nguyen, Van Sang AU - Nguyen VS AD - Institute for Environment and Resources (IER), Ho Chi Minh City, 700000, Vietnam. FAU - Vu, Hoang Ngoc Khue AU - Vu HNK AD - Institute for Environment and Resources (IER), Ho Chi Minh City, 700000, Vietnam. FAU - Nguyen, Thoai Tam AU - Nguyen TT AD - Institute for Environment and Resources (IER), Ho Chi Minh City, 700000, Vietnam. FAU - Huynh, Thi Thao Nguyen AU - Huynh TTN AD - Institute for Environment and Resources (IER), Ho Chi Minh City, 700000, Vietnam. FAU - Ho, Quoc Bang AU - Ho QB AD - Institute for Environment and Resources (IER), Ho Chi Minh City, 700000, Vietnam. hqbang@vnuhcm.edu.vn. AD - Department of Academic Affairs, Vietnam National University, 142 To Hien Thanh St, Dist.10, HCMC, Ho Chi Minh City, 700000, Vietnam. hqbang@vnuhcm.edu.vn. LA - eng GR - B2021-24-02/Viet Nam National University Ho Chi Minh City/ PT - Journal Article DEP - 20230517 PL - United States TA - Arch Environ Contam Toxicol JT - Archives of environmental contamination and toxicology JID - 0357245 RN - L5I45M5G0O (ethylbenzene) RN - J64922108F (Benzene) RN - 0 (Xylenes) RN - 3FPU23BG52 (Toluene) RN - 0 (Air Pollutants) RN - 0 (Benzene Derivatives) SB - IM MH - Benzene/analysis MH - Xylenes/analysis MH - Toluene/analysis MH - *Air Pollutants/analysis MH - Vietnam MH - Environmental Monitoring/methods MH - Benzene Derivatives/analysis MH - *Air Pollution EDAT- 2023/05/18 01:07 MHDA- 2023/10/23 00:41 CRDT- 2023/05/17 23:30 PHST- 2022/12/09 00:00 [received] PHST- 2023/04/27 00:00 [accepted] PHST- 2023/10/23 00:41 [medline] PHST- 2023/05/18 01:07 [pubmed] PHST- 2023/05/17 23:30 [entrez] AID - 10.1007/s00244-023-01002-4 [pii] AID - 10.1007/s00244-023-01002-4 [doi] PST - ppublish SO - Arch Environ Contam Toxicol. 2023 Oct;85(3):263-276. doi: 10.1007/s00244-023-01002-4. Epub 2023 May 17.