重金属污染和潜在的健康风险:以埃塞俄比亚Burayu Tatek工业区Koche河为例。

IF 3.4 Q2 TOXICOLOGY Journal of Toxicology Pub Date : 2024-11-22 eCollection Date: 2024-01-01 DOI:10.1155/jt/9425206
Mathewos Temesgen, Tegenu Alemu, Enkosa Shasho
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引用次数: 0

摘要

本研究旨在确定科切河中某些重金属的含量及其潜在的健康风险。在旱季特意选择了12个采样点,复制了水样。根据APHA(1998)程序,使用火焰原子吸收分光光度计测定重金属水平。据此计算重金属污染指数(HPI)、重金属评价指数(HEI)、慢性日摄入量(CDI)、危害商(HQ)、危害指数(HI)、总危害指数(THI)和终生递增癌症风险。检测到的重金属有Fe > Mn > Cu > Zn > Cr。大部分采样点饮用水和灌溉水的Cr、Fe、Mn、Cu含量均高于WHO规定的最高限量。HPI和HEI值也超过了研究点的最大值。HPI和HEI值在yam1位点最高。口服摄入分别占成人和儿童cdi总量(cdi摄入+皮肤接触)的99.55%和97.85%。两个年龄段的平均cdtotal和非致癌风险值依次为Fe > Mn > Cu > Zn > Cr。儿童的CDI、HQ、HI和THI评分较高。除2号、1号和2号位点外,2个年龄段的HIoral和THI值均高于1。然而,HQdermal水平高于1的只有儿童的Cr。获得的ELCR也表明铬的高致癌风险(成人和儿童分别为0.75±0.44和1.15±0.66)。总的来说,大多数研究地点的重金属污染水平超过了最大允许限度。因此,有效管理污染源和持续监测河流质量,以尽量减少健康风险是非常重要的。
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Heavy Metals Pollution and Potential Health Risks: The Case of the Koche River, Tatek Industrial Zone, Burayu, Ethiopia.

This study aimed to determine the levels of some heavy metals in the Koche River and the potential health risks. A replica of water samples was taken from 12 sampling sites purposely selected in the dry season. Heavy metal levels were determined using a flame atomic absorption spectrophotometer following the APHA (1998) procedure. Heavy metal pollution index (HPI), heavy metal evaluation index (HEI), chronic daily intake (CDI), hazard quotient (HQ), hazard index (HI), total hazard index (THI), and incremental lifetime cancer risk were calculated on the basis of the results. The heavy metals detected were Fe > Mn > Cu > Zn > Cr. The Cr, Fe, Mn, and Cu contents were above the maximum allowed limit of WHO for drinking and irrigation water at most of the sampling sites. The HPI and HEI values also surpassed the maximum limit of the study sites. The highest HPI and HEI values were found at the Yam1site. Oral ingestion represented 99.55% and 97.85% of CDItotal (CDIingestion + CDIdermal contact) in adults and children, respectively. The mean CDItotal and the noncarcinogenic risk values were found in the order of Fe > Mn > Cu > Zn > Cr in both ages. CDI, HQ, HI, and THI scores were higher in children. The HIoral and THI values were also higher than 1 in both ages except in DK 2, Sour 1, and Sour 2 sites. However, the HQdermal level was higher than 1 only for Cr in children. The ELCR obtained also indicated a high carcinogenic risk of Cr (0.75 ± 0.44 and 1.15 ± 0.66 in adults and children, respectively). In general, most of the study sites had heavy metal pollution levels that exceeded the maximum allowed limit. Therefore, effective management of sources of pollution and continuous monitoring of river quality to minimize health risks are very important.

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来源期刊
Journal of Toxicology
Journal of Toxicology TOXICOLOGY-
CiteScore
5.50
自引率
3.40%
发文量
0
审稿时长
10 weeks
期刊介绍: Journal of Toxicology is a peer-reviewed, Open Access journal that publishes original research articles, review articles, and clinical studies in all areas of toxicological sciences. The journal will consider articles looking at the structure, function, and mechanism of agents that are toxic to humans and/or animals, as well as toxicological medicine, risk assessment, safety evaluation, and environmental health.
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