ICAR-Central Inland Fisheries Research Institute, Regional Centre, Prayagraj 211002, India.
ICAR-Central Inland Fisheries Research Institute, Regional Centre, Prayagraj 211002, India.
Mar Pollut Bull. 2024 Jun;203:116498. doi: 10.1016/j.marpolbul.2024.116498. Epub 2024 May 17.
Heavy metal enrichment in river sediments poses a significant risk to human and aquatic health. The Yamuna River faces severe challenges due to untreated industrial and domestic wastewater discharge. The study evaluates sediment metal content, ecological and human health risks, and potential sources. Results showed Cd and Pb exhibited moderate to severe contamination and displayed ecological risk based on contamination factor, enrichment factor, and potential ecological risk. According to synergistic indices (pollution load index, PI, toxic risk index, contamination security index, mean probable effects level quotients, and probability of toxicity), the sediment in the Yamuna River doesn't seem to have a risk or enrichment from combined metals. Cd and Pb mainly originate from anthropogenic sources. Hazard index (< 1) and carcinogenic risk (2.2 × 10- to 4.7 × 10-) assessments suggest metal didn't pose any risk to humans exposed to sediment. The present study aids in developing pollution control strategies for the Yamuna River.
河流沉积物中的重金属富集对人类和水生生物健康构成重大风险。亚穆纳河由于未经处理的工业和生活污水排放而面临严峻挑战。本研究评估了沉积物中的金属含量、生态和人类健康风险以及潜在来源。结果表明，Cd 和 Pb 表现出中等至严重的污染，根据污染因子、富集因子和潜在生态风险，显示出生态风险。根据协同指数（污染负荷指数、PI、毒性风险指数、污染安全指数、平均可能效应水平商和毒性概率），亚穆纳河的沉积物似乎没有因多种金属的综合作用而产生风险或富集。Cd 和 Pb 主要来源于人为来源。危害指数（<1）和致癌风险（2.2×10-至 4.7×10-）评估表明，接触沉积物的金属对人类没有任何风险。本研究有助于为亚穆纳河制定污染控制策略。
