Biomonitoring of Mercury and Lead Levels in the Blood of Children Living near a Tropical River Impacted by Artisanal and Small-Scale Gold Mining in Colombia.

IF 3.9 3区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Toxics Pub Date : 2024-10-13 DOI:10.3390/toxics12100744
Eurípides Palacios-Valoyes, Manuel H Salas-Moreno, José L Marrugo-Negrete
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Abstract

(1) Background: Mercury and lead contamination resulting from various anthropogenic activities represents a global environmental problem and a considerable risk to the health of the human population. (2) Methods: The objective of this research was to evaluate the concentrations of mercury (Hg) and Lead (Pb) in the blood of the child population in the municipalities in the Atrato River basin using a direct Hg analyzer and graphite furnace atomic absorption spectrometry. (3) Results: In total, 171 children (5-14 years of age) were taken into account, and 18.71% (32) of the children had concentrations of Hg and Pb above the permissible values established by the WHO. In the municipality of UN, 19 children had blood Hg concentrations between 5.29 and 17.71 μg/L. In CA, two children had concentrations of 5.03 and 8.43 μg/L, separately. In the case of Pb, seven children showed concentrations between 3.60 and 4.83 μg/dL in the municipality of RQ, three in UN (3.59, 3.61, and 4.60 μg/dL), and one in Carmen de Atrato (5.47 μg/dL). (4) Conclusions: The levels of Hg and Pb in the blood of children living in the riparian areas of the Atrato River basin are related to gold mining activities in the basin and the consumption of contaminated fish.

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对生活在受哥伦比亚手工和小规模采金业影响的热带河流附近的儿童血液中的汞和铅含量进行生物监测。
(1) 背景:各种人为活动造成的汞和铅污染是一个全球性的环境问题,对人类健康构成了相当大的威胁。(2) 方法:本研究的目的是使用直接汞分析仪和石墨炉原子吸收光谱法评估阿特拉托河流域各市儿童血液中的汞(Hg)和铅(Pb)浓度。(3) 结果:共有 171 名儿童(5-14 岁)接受了检测,其中 18.71% 的儿童(32 人)血液中的汞和铅浓度超过了世界卫生组织规定的允许值。在联合国市,19 名儿童血液中的汞浓度介于 5.29 至 17.71 微克/升之间。在加利福尼亚州,两名儿童的血汞浓度分别为 5.03 和 8.43 微克/升。至于铅,RQ 市有 7 名儿童的铅含量在 3.60 至 4.83 μg/dL 之间,UN 市有 3 名儿童(3.59、3.61 和 4.60 μg/dL),Carmen de Atrato 市有 1 名儿童(5.47 μg/dL)。(4) 结论:阿特拉托河流域沿岸地区儿童血液中的汞和铅含量与该流域的金矿开采活动和食用受污染的鱼类有关。
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来源期刊
Toxics
Toxics Chemical Engineering-Chemical Health and Safety
CiteScore
4.50
自引率
10.90%
发文量
681
审稿时长
6 weeks
期刊介绍: The Journal accepts papers describing work that furthers our understanding of the exposure, effects, and risks of chemicals and materials in humans and the natural environment as well as approaches to assess and/or manage the toxicological and ecotoxicological risks of chemicals and materials. The journal covers a wide range of toxic substances, including metals, pesticides, pharmaceuticals, biocides, nanomaterials, and polymers such as micro- and mesoplastics. Toxics accepts papers covering: The occurrence, transport, and fate of chemicals and materials in different systems (e.g., food, air, water, soil); Exposure of humans and the environment to toxic chemicals and materials as well as modelling and experimental approaches for characterizing the exposure in, e.g., water, air, soil, food, and consumer products; Uptake, metabolism, and effects of chemicals and materials in a wide range of systems including in-vitro toxicological assays, aquatic and terrestrial organisms and ecosystems, model mammalian systems, and humans; Approaches to assess the risks of chemicals and materials to humans and the environment; Methodologies to eliminate or reduce the exposure of humans and the environment to toxic chemicals and materials.
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