國家衛生研究院 NHRI:Item 3990099045/8063
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    题名: Combination of a fast cleanup procedure and a DR-CALUX® bioassay for dioxin surveillance in Taiwanese soils
    作者: Lin, DY;Lee, YP;Li, CP;Chi, KH;Liang, BWP;Liu, WY;Wang, CC;Lin, S;Chen, TC;Yeh, KJC;Hsu, PC;Hsu, YC;Chao, HR;Tsou, TC
    贡献者: Division of Environmental Health and Occupational Medicine
    摘要: 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 (β = 0.097, p < 0.001), land use (β = 0.065, p < 0.001), soil brightness (β = 0.170, p < 0.001), and soil moisture (β = 0.051, p = 0.020), with adjusted R2 = 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.
    日期: 2014-05-06
    關聯: International Journal of Environmental Research and Public Health. 2014 May 6;11(5):4886-4904.
    Link to: http://dx.doi.org/10.3390/ijerph110504886
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000337251900020
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84899807698
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