Combination of a Fast Cleanup Procedure and a DR-CALUX ® Bioassay for Dioxin Surveillance in Taiwanese Soils

Ding-Yan Lin, Yi-Pin Lee, Chiu-Ping Li, Kai-Hsien Chi, Bo-Wei P. Liang, Wen-Yao Liu, Chih-Cheng Wang, Susana Lin, Ting-Chien Chen, Kuei-Jyum C. Yeh, Ping-Chi Hsu, Yi-Chyun Hsu, How-Ran Chao and Tsui-Chun Tsou
Additional contact information
Ding-Yan Lin: Emerging Compounds Research Center, Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung County 912, Taiwan
Yi-Pin Lee: Division 5 of the Environmental Analysis Laboratory, Environmental Protection Administration, Zhongli, Taoyuan County 320, Taiwan
Chiu-Ping Li: Division 5 of the Environmental Analysis Laboratory, Environmental Protection Administration, Zhongli, Taoyuan County 320, Taiwan
Kai-Hsien Chi: Institute of Environmental and Occupational Health Science, National Yang-Ming University, Beitou Dist., Taipei City 112, Taiwan
Bo-Wei P. Liang: Environmental Engineering Department Ⅱ, Sinotech Engineering Consultants, Ltd., Neihu Dist., Taipei City 114, Taiwan
Wen-Yao Liu: MWH Americas Inc., Taiwan Branch, Daan Dist., Taipei City 106, Taiwan
Chih-Cheng Wang: MWH Americas Inc., Taiwan Branch, Daan Dist., Taipei City 106, Taiwan
Susana Lin: International College, National Pingtung University of Science and Technology, Neipu, Pingtung County 912, Taiwan
Ting-Chien Chen: Emerging Compounds Research Center, Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung County 912, Taiwan
Kuei-Jyum C. Yeh: Emerging Compounds Research Center, Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung County 912, Taiwan
Ping-Chi Hsu: Department of Safety, Health and Environmental Engineering, National Kaohsiung First University of Science and Technology, Yanchao Dist., Kaohsiung City 811, Taiwan
Yi-Chyun Hsu: Department of Environmental Engineering, Kun Shan University, Yongkang Dist., Tainan City 710, Taiwan
How-Ran Chao: Emerging Compounds Research Center, Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Neipu, Pingtung County 912, Taiwan
Tsui-Chun Tsou: Division of Environmental Health and Occupational Medicine, National Health Research Institutes, Zhunan, Miaoli County 350, Taiwan

IJERPH, 2014, vol. 11, issue 5, 1-19

Abstract: Our goal was to determine dioxin levels in 800 soil samples collected from Taiwan. An in vitro DR-CALUX ® assay was carried out with the help of an automated Soxhlet system and fast cleanup column. The mean dioxin level of 800 soil samples was 36.0 pg-bioanalytical equivalents (BEQs)/g dry weight (d.w.). Soil dioxin-BEQs were higher in northern Taiwan (61.8 pg-BEQ/g d.w.) than in central, southern, and eastern Taiwan (22.2, 24.9, and 7.80 pg-BEQ/g d.w., respectively). Analysis of multiple linear regression models identified four major predictors of dioxin-BEQs including soil sampling location ( ? = 0.097, p < 0.001), land use ( ? = 0.065, p < 0.001), soil brightness ( ? = 0.170, p < 0.001), and soil moisture ( ? = 0.051, p = 0.020), with adjusted R 2 = 0.947 ( p < 0.001) (n = 662). An univariate logistic regression analysis with the cut-off point of 33.4 pg-BEQ/g d.w. showed significant odds ratios (ORs) for soil sampling location (OR = 2.43, p < 0.001), land use (OR = 1.47, p < 0.001), and soil brightness (OR = 2.83, p = 0.009). In conclusion, four variables, including soil sampling location, land use, soil brightness, and soil moisture, may be related to soil-dioxin contamination. Soil samples collected in northern Taiwan, and especially in Bade City, soils near industrial areas, and soils with darker color may contain higher dioxin-BEQ levels.

Keywords: polychlorinated dibenzo- p -dioxins/furans; soil; aryl hydrocarbon receptor (AhR); bioassay; DR-CALUX ®; dioxin survey (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2014
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/11/5/4886/pdf (application/pdf)
https://www.mdpi.com/1660-4601/11/5/4886/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:11:y:2014:i:5:p:4886-4904:d:35796

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().