Occurrence, bioaccumulation, and ecological and health risks of Cd, Sn, Hg, and Pb compounds in shrimp and fish from aquaculture ponds

IF 12.2 1区 环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL
Pingxiu Zeng, Hongmei Hu, Yuanchao Wang, Jinhua Liu, Heyong Cheng
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Abstract

Aquaculture organisms may accumulate metals to induce health risks. Compared with the focus on total contents, chemical-specific risk assessment makes reasonable but is rare. Herein, we elucidated occurrence of twelve metal compounds in shrimp and fish (edible muscle, one of major metal-containing and generally targeted organs), water, sediment, and feedstuff from two aquaculture ponds in Zhejiang Province (one of the major aquatic production and consumption areas). We detected Cd(II) (0.6−71.4 μg kg–1 in 100% prawn but 63% fish), methylmercury (MeHg, 0.5−7.1 μg kg–1 in 100% fish but 61% shrimp), Pb(II) (0.4−1.0 μg kg–1 in 57% fish and 39% prawn), and trimethyltin and triethyltin (0.4−0.7 μg kg–1), which were much lower than the maximum limits in China. Pb(II), Cd(II), and Hg(II) up to 0.38 mg kg–1 were main contaminants in sediment while Cd(II) and Pb(II) up to 0.44 mg kg–1 were major contaminants in feedstuff compared with Cd(II), Sn(II), Hg(II), and Pb(II) majored in water at ng L–1 levels. Ecological risks were low in water but high for tributyltin in sediment. Additionally, light bioaccumulation of Cd(II) from sediment for prawn and methylmercury from feedstuff/sediment for crucian and bighead carp was induced. We also found light health risk of triethyl- and trimethyl lead, and Cd(II) (to children) associated with fish/shrimp consumption (edible muscle). This study proved high necessity of chemical-specific assessment, and shall trigger increasing interest to more metallic compounds in a wide range of uncultured and cultured plants and animals.

Abstract Image

水产养殖鱼虾体内Cd、Sn、Hg、Pb化合物的存在、生物积累及生态健康风险
水产养殖生物可能积聚金属,导致健康风险。与对总含量的关注相比,特定化学品的风险评估是合理的,但较少。本文研究了浙江省(水产主要生产和消费地区之一)两个养殖池塘的虾和鱼(可食用肌肉,主要含金属器官之一)、水、沉积物和饲料中12种金属化合物的含量。Cd(II)(100%对虾,63%鱼)、甲基汞(MeHg, 100%鱼,61%虾,0.5 ~ 7.1 μ kg-1)、Pb(II)(57%鱼,39%对虾,0.4 ~ 1.0 μ kg-1)、三甲基锡和三乙基锡(0.4 ~ 0.7 μ kg-1)的检测值均远低于国内最高限量。沉积物中以Pb(II)、Cd(II)和Hg(II)为主要污染物,最高可达0.38 mg kg-1;饲料中以Cd(II)和Pb(II)为主要污染物,最高可达0.44 mg kg-1;水中以Cd(II)、Sn(II)、Hg(II)和Pb(II)为主要污染物。水体生态风险低,沉积物中三丁基锡生态风险高。此外,还诱导了对虾沉积物中Cd(II)的轻度生物积累以及鲫鱼和鳙鱼饲料/沉积物中甲基汞的积累。我们还发现三乙基铅、三甲基铅和镉(II)(对儿童)的轻度健康风险与食用鱼/虾(可食用肌肉)有关。该研究证明了化学特异性评估的高度必要性,并将引发人们对更广泛的非养殖和养殖动植物中更多金属化合物的兴趣。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Hazardous Materials
Journal of Hazardous Materials 工程技术-工程:环境
CiteScore
25.40
自引率
5.90%
发文量
3059
审稿时长
58 days
期刊介绍: The Journal of Hazardous Materials serves as a global platform for promoting cutting-edge research in the field of Environmental Science and Engineering. Our publication features a wide range of articles, including full-length research papers, review articles, and perspectives, with the aim of enhancing our understanding of the dangers and risks associated with various materials concerning public health and the environment. It is important to note that the term "environmental contaminants" refers specifically to substances that pose hazardous effects through contamination, while excluding those that do not have such impacts on the environment or human health. Moreover, we emphasize the distinction between wastes and hazardous materials in order to provide further clarity on the scope of the journal. We have a keen interest in exploring specific compounds and microbial agents that have adverse effects on the environment.
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