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Sampling and analysis of ambient dioxins in northern Taiwan.
Chemosphere. 2003 Jun; 51(10):1103-10.C

Abstract

In this study, ambient air samples were taken concurrently in the vicinity area of a large-scale municipal waste incinerator (MWI) and the background area for measuring polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) concentrations from November 1999 through July 2000 in northern Taiwan. The results obtained from eighteen ambient air samples indicate that the mean PCDD/F concentration of seventeen 2,3,7,8-substituted congeners in wintertime (188-348 fg-I-TEQ/m(3)) is significantly higher than that measured in summertime (56-166 fg-I-TEQ/m(3)). In addition, the seasonal PCDD/F concentrations are compared with the ambient air quality data including CO, NO(2), PM(10) and TSP sampled from Taipei area to gain better insights. It indicates that the variation of ambient air PCDD/F concentrations is closely correlated with that of PM(10) concentrations. Besides, the results indicate that the I-TEQ concentration of ambient air in sampling site B (directly downwind of the MWI) is of the highest while the sampling site A (upwind of MWI) is of the lowest among all sampling sites. This implies that existing MWI can be a significant emitter of PCDD/Fs in this area. Furthermore, the patterns of the PCDD/F congener distribution at all sampling sites (including the background site in Taoyuan) are quite similar. OCDD concentration is of the highest among seventeen PCDD/F congeners investigated and accounts for about 35% of the total concentration. As for the I-TEQ concentrations, 2,3,4,7,8-PeCDF is the most significant contributor, generally being responsible for 30-45% of the total I-TEQ values depending on the sampling sites and seasons.

Authors+Show Affiliations

Graduate Institute of Environmental Engineering, National Central University, Chungli 320, Taiwan, ROC. mbchang@ncuen.ncu.edu.twNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12718976

Citation

Chang, Moo Been, et al. "Sampling and Analysis of Ambient Dioxins in Northern Taiwan." Chemosphere, vol. 51, no. 10, 2003, pp. 1103-10.
Chang MB, Weng YM, Lee TY, et al. Sampling and analysis of ambient dioxins in northern Taiwan. Chemosphere. 2003;51(10):1103-10.
Chang, M. B., Weng, Y. M., Lee, T. Y., Chen, Y. W., Chang, S. H., & Chi, K. H. (2003). Sampling and analysis of ambient dioxins in northern Taiwan. Chemosphere, 51(10), 1103-10.
Chang MB, et al. Sampling and Analysis of Ambient Dioxins in Northern Taiwan. Chemosphere. 2003;51(10):1103-10. PubMed PMID: 12718976.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sampling and analysis of ambient dioxins in northern Taiwan. AU - Chang,Moo Been, AU - Weng,Ying Ming, AU - Lee,Tzu Yi, AU - Chen,Yuan Wu, AU - Chang,Shu Hao, AU - Chi,Kai Hsien, PY - 2003/4/30/pubmed PY - 2003/6/25/medline PY - 2003/4/30/entrez SP - 1103 EP - 10 JF - Chemosphere JO - Chemosphere VL - 51 IS - 10 N2 - In this study, ambient air samples were taken concurrently in the vicinity area of a large-scale municipal waste incinerator (MWI) and the background area for measuring polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) concentrations from November 1999 through July 2000 in northern Taiwan. The results obtained from eighteen ambient air samples indicate that the mean PCDD/F concentration of seventeen 2,3,7,8-substituted congeners in wintertime (188-348 fg-I-TEQ/m(3)) is significantly higher than that measured in summertime (56-166 fg-I-TEQ/m(3)). In addition, the seasonal PCDD/F concentrations are compared with the ambient air quality data including CO, NO(2), PM(10) and TSP sampled from Taipei area to gain better insights. It indicates that the variation of ambient air PCDD/F concentrations is closely correlated with that of PM(10) concentrations. Besides, the results indicate that the I-TEQ concentration of ambient air in sampling site B (directly downwind of the MWI) is of the highest while the sampling site A (upwind of MWI) is of the lowest among all sampling sites. This implies that existing MWI can be a significant emitter of PCDD/Fs in this area. Furthermore, the patterns of the PCDD/F congener distribution at all sampling sites (including the background site in Taoyuan) are quite similar. OCDD concentration is of the highest among seventeen PCDD/F congeners investigated and accounts for about 35% of the total concentration. As for the I-TEQ concentrations, 2,3,4,7,8-PeCDF is the most significant contributor, generally being responsible for 30-45% of the total I-TEQ values depending on the sampling sites and seasons. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/12718976/Sampling_and_analysis_of_ambient_dioxins_in_northern_Taiwan_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(02)00711-7 DB - PRIME DP - Unbound Medicine ER -