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Dry deposition of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in ambient air.
Chemosphere. 2006 Jan; 62(3):411-6.C

Abstract

The PCDD/Fs in the ambient air associated with concentration and dry deposition flux of four seasons were characterized in rural area. The mean PCDD/F concentrations were 0.342, 0.221, 0.675, 0.741 pg m(-3) and the mean I-TEQ values were 0.027, 0.016, 0.024, 0.063 pg m(-3) in spring, summer, fall and winter, respectively. Ambient air in winter was higher by a factor of 3.4 and 3.9 for PCDD/F concentration and I-TEQ, respectively, than in summer. The study area is located in a Tropical region. Hence, domestic heating is not found in this area and is not responsible for the elevated winter concentration in comparison to other studies. A smooth plate with a sharp leading edge that is pointed into the wind by a wind vane was used for measuring dry deposition flux of PCDD/Fs. Atmospheric dry deposition fluxes of total PCDD/Fs were 140, 116, 137, and 207 pg m(-2)day(-1) in spring, summer, fall, and winter, respectively, and averaged approximately 150 pg m(-2)day(-1). The total dry deposition flux was found to decrease as the temperature increased. Calculated dry deposition velocities of total PCDD/Fs were 0.45, 0.52, 0.32 and 0.39 cm s(-1) in spring, summer, fall, and winter, respectively, and averaged 0.42 cm s(-1).

Authors+Show Affiliations

Department of Environmental Engineering and Science, Chia Nan University of Pharmacy and Science, No. 60, Section 1, Erh-Jen Rd., Tainan 717, Taiwan, ROC. mshih@mail.chna.edu.twNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15964055

Citation

Shih, Minliang, et al. "Dry Deposition of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans (PCDD/Fs) in Ambient Air." Chemosphere, vol. 62, no. 3, 2006, pp. 411-6.
Shih M, Lee WS, Chang-Chien GP, et al. Dry deposition of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in ambient air. Chemosphere. 2006;62(3):411-6.
Shih, M., Lee, W. S., Chang-Chien, G. P., Wang, L. C., Hung, C. Y., & Lin, K. C. (2006). Dry deposition of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in ambient air. Chemosphere, 62(3), 411-6.
Shih M, et al. Dry Deposition of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans (PCDD/Fs) in Ambient Air. Chemosphere. 2006;62(3):411-6. PubMed PMID: 15964055.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dry deposition of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in ambient air. AU - Shih,Minliang, AU - Lee,Wei-Shan, AU - Chang-Chien,Guo-Ping, AU - Wang,Lin-Chi, AU - Hung,Chia-Yang, AU - Lin,Kuo-Ching, Y1 - 2005/06/16/ PY - 2004/10/06/received PY - 2005/03/07/revised PY - 2005/04/17/accepted PY - 2005/6/21/pubmed PY - 2006/2/28/medline PY - 2005/6/21/entrez SP - 411 EP - 6 JF - Chemosphere JO - Chemosphere VL - 62 IS - 3 N2 - The PCDD/Fs in the ambient air associated with concentration and dry deposition flux of four seasons were characterized in rural area. The mean PCDD/F concentrations were 0.342, 0.221, 0.675, 0.741 pg m(-3) and the mean I-TEQ values were 0.027, 0.016, 0.024, 0.063 pg m(-3) in spring, summer, fall and winter, respectively. Ambient air in winter was higher by a factor of 3.4 and 3.9 for PCDD/F concentration and I-TEQ, respectively, than in summer. The study area is located in a Tropical region. Hence, domestic heating is not found in this area and is not responsible for the elevated winter concentration in comparison to other studies. A smooth plate with a sharp leading edge that is pointed into the wind by a wind vane was used for measuring dry deposition flux of PCDD/Fs. Atmospheric dry deposition fluxes of total PCDD/Fs were 140, 116, 137, and 207 pg m(-2)day(-1) in spring, summer, fall, and winter, respectively, and averaged approximately 150 pg m(-2)day(-1). The total dry deposition flux was found to decrease as the temperature increased. Calculated dry deposition velocities of total PCDD/Fs were 0.45, 0.52, 0.32 and 0.39 cm s(-1) in spring, summer, fall, and winter, respectively, and averaged 0.42 cm s(-1). SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/15964055/Dry_deposition_of_polychlorinated_dibenzo_p_dioxins_and_dibenzofurans__PCDD/Fs__in_ambient_air_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(05)00639-9 DB - PRIME DP - Unbound Medicine ER -