印度南部城市化污染生态系统中重金属特征的生物监测:以迅猛龙为例研究

IF 1.3 Q4 ENVIRONMENTAL SCIENCES
Sanchari Biswas, Ramakrishna Chinthala
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引用次数: 0

摘要

背景:重金属在环境中仍然顽强,这进一步导致了新的生物累积,并通过食物链上升。鸟类是伟大的环境哨兵,即使是最小的变化也能发现。本研究的目的是确定斑点猫头鹰(Athene brama)羽毛、肝脏、肾脏、肌肉和骨骼中的重金属含量,特别是Ni、铜(Cu)、铝(Al)、钛(Ti)和Se,这些猫头鹰是从印度东海岸维萨卡帕特南城市化景观中的各种受污染生态系统中偶然收集的。方法:随机采集标本,然后进行尸检。按照标准方案,通过添加10mL HNO3、5mL HClO4和2mL H2 O2来消化有机样品,以消除过量的有机物。结果:根据GIS数据,猛禽出现在生产景观中,主要出现在城市空间,目前正受到多种人为威胁。结果表明,鸟类体内重金属的富集顺序为:Ti>Al>Cu>Ni>Se,但鸟类体内重金属富集的组织顺序为:肝脏>肾脏>骨骼>肌肉。brama的组织显示出Ti和Al浓度显著的迹象。使用Kruskal-Wallis非参数检验对所获得的结果进行分析。结论:随着时间的推移,人们对各种环境基质进行了重金属研究,但某些金属要么被忽视,要么没有得到适当的记录。这项研究的主要发现是首次报道印度鸟类中的Ti和Al,因为在这方面存在空白。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Biomonitoring of heavy metal signatures in urbanized contaminated ecosystems of Southern India: A case study using raptor, Athene brama
Background: Heavy metals remain tenacious in the environment which further leads to emerging bioaccumulation, rising through the food chain. Birds are great environmental sentinels that can spot even the smallest changes. The aim of this study was to determine the quantity of heavy metals, specifically Ni, copper (Cu), aluminum (Al), titanium (Ti), and Se, in the feathers, liver, kidney, muscle, and bones of spotted owlets (Athene brama), which were opportunistically collected from a variety of contaminated ecosystems in the urbanized landscapes of Visakhapatnam on India’s East Coast. Methods: Opportunistic sample collection was done followed by necropsy. Following standard protocols, organic samples were digested by adding 10 mL HNO3 , 5 mL of HClO4 , and 2 mL of H2 O2 to eliminate the excess organic matter. Results: Based on the GIS data, raptors were shown to occur in production landscapes and mostly in urban spaces, and currently, are under several anthropogenic threats. The findings showed that the sequence of heavy metal concentrations was Ti>Al>Cu>Ni>Se, but the tissues of birds in which metals accumulated are in the following order: liver>kidney>bones>muscle. The tissues of A. brama showed the signs of significant concentrations of Ti and Al. The results obtained were analyzed using Kruskal-Wallis non-parametric test. Conclusion: Heavy metal studies on various matrices of the environment have been performed over time with certain metals either neglected or not being documented properly. The main finding of this study is the first report of Ti and Al in bird species from India as there is a lacuna in this context.
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来源期刊
CiteScore
2.40
自引率
37.50%
发文量
17
审稿时长
12 weeks
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