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Comparison of Plasma Concentrations of Mercury, Cadmium, and Arsenic among Women in 2005 and 2012 in a Historically Contaminated Area in China.
- Source :
-
Biological trace element research [Biol Trace Elem Res] 2020 Dec; Vol. 198 (2), pp. 380-389. Date of Electronic Publication: 2020 Feb 18. - Publication Year :
- 2020
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Abstract
- Mercury (Hg), cadmium (Cd), and arsenic (As) concentrations in women were measured and compared to evaluate the effects of environmental heavy-metal pollution control on internal exposure levels. In 2005 and 2012, 200 and 182 women, respectively, were enrolled in the study. Demographic and diet information were collected using a questionnaire. Fasting venous blood samples were collected, and plasma concentrations of Hg, Cd, and As were measured using inductive coupled plasma mass spectrometry. The median concentrations (P <subscript>25</subscript> -P <subscript>75</subscript> ) of Hg, Cd, and As decreased from 0.56 (0.46-0.75) ng/mL, 0.14 (0.09-0.21) ng/mL, and 0.83 (0.66-1.09) ng/mL in 2005 to 0.39 (0.19-0.66) ng/mL, 0.09 (0.05-0.13) ng/mL, and 0.48 (0.29-0.72) ng/mL in 2012, respectively. The difference in plasma metal concentrations between measurements in 2005 and 2012 remained statistically significant after we adjusted for confounders. The adjusted ORs were 0.31 (0.16-0.60), 0.24 (0.12-0.48), and 0.25 (0.13-0.50) for Hg, Cd, and As concentrations, respectively, in 2012, relative to those in 2005. The levels of Hg, Cd, and As were 30% to 40% lower in 2012 than in 2005, indicative of lower human internal exposure to these contaminants due to the implementation of environmental pollution control. Engagement with agriculture and high-frequency water product consumption were associated with high Hg levels, and a high frequency of consumption of fresh fruit and eggs was negatively associated with lower levels of Cd in plasma.
- Subjects :
- Cadmium analysis
China
Female
Humans
Arsenic
Mercury analysis
Metals, Heavy analysis
Subjects
Details
- Language :
- English
- ISSN :
- 1559-0720
- Volume :
- 198
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Biological trace element research
- Publication Type :
- Academic Journal
- Accession number :
- 32072446
- Full Text :
- https://doi.org/10.1007/s12011-020-02075-1