Heavy metals are one among the toxic chemicals and accumulation in sediments and plants has been posing serious health impacts. Wetlands aid as kidneys of the landscape and help in remediation through uptake of nutrients, heavy metals and other contaminants. The analyses of macrophytes and sediment samples help in evaluating pollution status in aquatic environment. In this study concentration of six heavy metals (Cadmium (Cd), Chromium (Cr), Copper (Cu), Nickel (Ni), Lead (Pb) and Zinc (Zn)) were assessed in sediment and dominant macrophyte samples collected from Bellandur Lake, largest Lake of Bangalore, India. Sediment samples reveal of heavy metals in the inlet regions and shore samples. The accumulation of metals in sediments were in the order of Zn > Cu > Cr > Pb > Ni > Cd. All metals exceeded the critical limits of metals in the sediment. Concentration of different metals in the macrophyte samples ranked as: Cr > Cu > Zn > Pb > Ni > Cd. Chromium and Copper were found to be more than critical range. Typha angustata had the higher accumulation of all metals except chromium.

重金属是有毒化学物质之一，沉积物和植物中的积累已对健康产生了严重影响。湿地可作为景观的肾脏，并通过吸收养分，重金属和其他污染物来帮助进行补救。对大型植物和沉积物样品的分析有助于评估水生环境的污染状况。在这项研究中，对从Bellandur收集的沉积物和主要大型植物样品中的六种重金属（镉（Cd），铬（Cr），铜（Cu），镍（Ni），铅（Pb）和锌（Zn））进行了评估。湖，印度班加罗尔最大的湖。沉积物样本显示出入口区域和海岸样本中的重金属。沉积物中金属的积累顺序为锌>铜>铬>铅>镍>镉。所有金属均超过沉积物中金属的临界极限。大型植物样品中不同金属的浓度排序为：Cr> Cu> Zn> Pb> Ni> Cd。发现铬和铜超出临界范围。香蒲在除铬外的所有金属中都有较高的积累。