Groundwater plays a pivotal role as the largest potable water sources in Bangladesh. As agriculture is widely practiced in Bangladesh, potential nitrate (NO3¯) pollution may occur. Besides, excess amount of arsenic (As) has already been found in groundwater in many parts of Bangladesh including the present study area. Thus, this study was conducted to assess the NO3¯ status along with some trac...

Groundwater plays a pivotal role as the largest potable water sources in Bangladesh. As agriculture is widely practiced in Bangladesh, potential nitrate (NO3¯) pollution may occur. Besides, excess amount of arsenic (As) has already been found in groundwater in many parts of Bangladesh including the present study area. Thus, this study was conducted to assess the NO3¯ status along with some trac...

Background: In the current study,the hazard quotient, the hazard index (HI) and spatial variations of Fe,Mn,Cu and Cr in drinking water sources of Andimesk-Shush, Khuzestan Province, Southern Iranaquifer were assessed. Methods: We compared theconcentrations of aforementioned heavy metals in wells and springs inAndimeshk and Shush regions. The non-carcinogenic risk assessment of heavy metals ...

In this study, monthly heavy metal concentrations in the whole-body tissue of Patella caerulea (Mediterranean limpets), a bioindicator species living coastal zone Gulf Izmit (Marmara Sea), were examined for first time. The mean (mg kg-1 dw) 2.01–5.74 Cd, 2.45–12.90 Cu, 0.74–1.95 Pb, 21.12–109.57 Zn, 16.31–154.67 Ni, and 1120.67–3086.00 Fe. Cd levels all months Pb October November found to be ab...

To evaluate the variation in ecological risk induced by pollutants from construction of Baihetan Dam, largest hydropower station under world, this study proposes a fuzzy hazard quotient (HQ) model designed on basis triangular number (TFN) theory. The HQ uses hazardous TFN to including uncertain observation data, and transition analyze before after dam construction. results show following: (i) a...

Dietary uptake is well known as the predominant pathway of heavy metal bioaccumulation in organisms. Our study used a typical tropical reservoir and fish modeling system to test hypothesis that feeding habits living habitats significantly affect fish. Specifically, Cr, Mn, Fe, Ni, Cu, Zn, Cd, Pb concentrations water, sediment, fish, δ13C δ15N 13 species were detected Songtao Reservoir Hainan Pr...

Bioaccumulation of cadmium was assessed in different tissues the benthic fish Solea senegalensis. Juvenile Senegalese soles were simultaneously exposed to cadmium-contaminated diet (Hediste diversicolor) and water during 14 days allowed depurate for another days. Cadmium content measured muscle, gills, liver intestine, with recorded values increasing these this same order. Muscle showed a consi...

Background & Aims of the Study: The present research aims to use sediment quality indices in the assessment of toxicity and ecological risk factors of heavy metals Pb, Cu and Zn in Anzali, Meighan, Shadegan and Hashilan wetlands. Material & Methods: Given the environmental conditions, surface sediments in 71 diverse stations were sampled in three replications. Having preparation and subject...