Bioaccumulation of heavy metals in fish tissues of a freshwater lake of Bhopal

Abstract

Contamination of heavy metals, namely, lead, cadmium, zinc, nickel, copper, chromium and mercury was evaluated in the samples of water and tissues of Labeo rohita and Ctenopharyngodon idella of Upper Lake of Bhopal collected during summer, rainy and winter seasons of 2005-2006. Different organs of the fishes accumulated varying quantities of different heavy metals. In L. rohita, accumulation of heavy metals was in the sequence liver>kidney>gills>muscles, and in C. idella, it was gills>liver>kidney>muscles. Zn was the highest accumulating metal in fish, whilst Hg was the lowest and was well corroborated with those of water. The values of heavy metals were so far well within the maximum permissible standard value of heavy metals for drinking water and for fish culture as prescribed by various national and international agencies.

Concentration distribution and potential health risk of heavy metals in Mactra veneriformis from Bohai Bay, China

“…Heavy metals are stable, persistent, nonbiodegradable, and toxic contaminants of aquatic environments, and they can accumulate in organisms and food chains, therefore potentially threatening the health of aquatic organisms (Wu et al, 2013a,b) and human beings (Papagiannis et al, 2004). Heavy metal contaminations caused by industrialization, urbanization, and agricultural activities are increasing in aquatic environments, and it has become a serious issue worldwide (Tarras et al, 2001;Cheng, 2003;Malik et al, 2010), Many researchers have made efforts to determine heavy metal concentrations in aquatic environments and aquatic organisms, and to investigate the potential health risk of heavy metals to consumers caused by consumption of contaminated seafood (Copat et al, 2013;Li et al, 2013;Wei et al, 2014). Owing to the effects of bioaccumulation and biomagnification, some heavy metals with low concentrations could rise to hazardous levels through food chains in aquatic organisms (Castro and Mendez, 2008;Qiu et al, 2011).…”

Heavy metal contamination in water and fishes from the Shitalakhya river at Narayanganj, Bangladesh

“…Moreover, anthropogenic activities continuously increase the amount of heavy metals in the water bodies especially in the lakes, canals, rivers and in aquatic organisms which is an alarming rate and has become an worldwide problem (Malik et al 2010). Aquatic organisms such as fish and shell fish accumulate metals to concentrations many times higher than present in water or sediment (Gumgum et al 1994).…”

Microbial and Physicochemical Qualities of River Owena Water: An Important Source of Domestic Water in Owena Metropolis

“…Human activities cause pollutants such as heavy metals, pesticides and herbicides to enter aquatic ecosystems. Thus, heavy metal pollution is growing at an alarming rate and has become an important worldwide problem (Malik et al, 2010).…”

“…Heavy metals cannot be degraded, but they are deposited, assimilated or incorporated in water, sediments and aquatic biota causing heavy metal pollution in water bodies (Linnik and Zubenko, 2000;Malik et al, 2010). Heavy metals in water can originate both from natural sources, industrial, agricultural and domestic activities in the drainage basin of a water system.…”