印度泰米尔纳德邦部落渔民的血铅和金属水平升高

IF 3.6 3区医学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY

Journal of Trace Elements in Medicine and Biology Pub Date : 2025-08-08 DOI:10.1016/j.jtemb.2025.127713

Dhananjayan Venugopal , Ravichandran Beerappa , Panjakumar Karunamoorthy , Jawahar Salavath , Mala Ambikabathy , Shridhar Kondhalkar , Gopalakrishnan Ayyaru , Thamaraikannan Mohankumar

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引用次数: 0

摘要

渔民通过与捕鱼有关的活动接触到有害物质，包括金属，对健康构成重大风险，特别是对红树林生态系统中脆弱的部落社区而言。目的本研究评估了印度泰米尔纳德邦皮查瓦拉姆部落渔民的血液金属水平。方法采用电感耦合等离子体发射光谱法（ICP-OES）对53名渔民的血液样品进行铬（Cr）、铜（Cu）、锰（Mn）、镍（Ni）、铅（Pb）和锌（Zn）的定量分析。通过调查收集职业暴露数据，并将调查结果与国际参考值（RV95）进行比较。ResultsThe平均数±标准差浓度的铬、铜、锰、镍、铅、锌是884 ±804年  441±427年  95±93年  157±147年 208 ± 172年和2841年 ±  2695µg / L, respectively-markedly超过国际参考价值(RV95)。血铅水平（BLLs）尤其值得关注。约74 %的参与者超过了CDC参考值5 µg/dL， 55 %超过了ACGIH生物暴露指数值20 µg/dL， 15 %超过了OSHA职业阈值40 µg/dL。渔网制造商的平均bll最高（269 µg/L），可能是由于直接接触含铅的捕鱼沉器。金属负荷在职业角色和血金属浓度升高之间存在显著差异（p <； 0.01），未使用个人防护装备（PPE）的人表现出更高的金属负荷。结论Pichavaram部落渔民面临有毒微量金属（尤其是铅）暴露的重大健康风险。必须立即采取干预措施，如推广个人防护装备、更严格的法规和教育计划。这项开创性的研究强调需要制定有效的公共卫生政策来保护渔业社区，并强调弱势群体的职业危害。

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Elevated blood lead and metal levels among occupationally exposed tribal fishermen in Tamil Nadu, India

Background

Fishermen are exposed to hazardous substances, including metals, through fishing-related activities, posing significant health risks, particularly among vulnerable tribal communities in mangrove ecosystems.

Objectives

This study assessed blood metal levels among tribal fishermen from Pichavaram, Tamil Nadu, India.

Methods

Blood samples from 53 fishermen were analyzed using inductively coupled plasma-optical emission spectrometry (ICP-OES) to quantify chromium (Cr), copper (Cu), manganese (Mn), nickel (Ni), lead (Pb), and zinc (Zn). Occupational exposure data were collected through surveys, and findings were compared to international reference values (RV95).

Results

The mean ± SD concentrations of Cr, Cu, Mn, Ni, Pb, and Zn were 884 ± 804, 441 ± 427, 95 ± 93, 157 ± 147, 208 ± 172, and 2841 ± 2695 µg/L, respectively—markedly exceeding international reference values (RV95). Blood lead levels (BLLs) were of particular concern. About 74 % of the participants exceeded the CDC reference values of 5 µg/dL, 55 % surpassed the ACGIH biological exposure index value of 20 µg/dL, and 15 % exceeded the OSHA occupational threshold limit of 40 µg/dL. Fishnet makers had the highest mean BLLs (269 µg/L), likely due to direct contact with lead-based fishing sinkers. A significant differences in metal load (p < 0.01) was observed between occupational roles and elevated blood metal concentrations, with non-users of personal protective equipment (PPE) exhibiting higher metal burdens.

Conclusion

Tribal fishermen in Pichavaram face significant health risks from elevated toxic trace metal exposure, especially lead. Immediate interventions, such as promoting personal protective equipment (PPE), stricter regulations, and educational programs, are essential. This pioneering study underscores the need for effective public health policies to safeguard fishing communities and highlights occupational hazards in vulnerable populations.

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来源期刊

Journal of Trace Elements in Medicine and Biology 医学-内分泌学与代谢

CiteScore

6.60

自引率

2.90%

发文量

202

审稿时长

85 days

期刊介绍： The journal provides the reader with a thorough description of theoretical and applied aspects of trace elements in medicine and biology and is devoted to the advancement of scientific knowledge about trace elements and trace element species. Trace elements play essential roles in the maintenance of physiological processes. During the last decades there has been a great deal of scientific investigation about the function and binding of trace elements. The Journal of Trace Elements in Medicine and Biology focuses on the description and dissemination of scientific results concerning the role of trace elements with respect to their mode of action in health and disease and nutritional importance. Progress in the knowledge of the biological role of trace elements depends, however, on advances in trace elements chemistry. Thus the Journal of Trace Elements in Medicine and Biology will include only those papers that base their results on proven analytical methods. Also, we only publish those articles in which the quality assurance regarding the execution of experiments and achievement of results is guaranteed.