Trace metal levels in the sediment and water of river Bhadra, Karnataka, India

Author(s):  
THIRUMALA S. ◽  
SHASHI SHEKAR T.R. ◽  
KIRAN B.R.
Keyword(s):  
2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Fathi Alhashmi Bashir ◽  
Mohammad Shuhaimi-Othman ◽  
A. G. Mazlan

This study is focused on evaluating the trace metal levels in water and tissues of two commercial fish species Arius thalassinus and Pennahia anea that were collected from Kapar and Mersing coastal waters. The concentrations of Fe, Zn, Al, As, Cd and Pb in these coastal waters and muscle, liver and gills tissues of the fishes were quantified. The relationship among the metal concentrations and the height and weight of the two species were also examined. Generally, the iron has the highest concentrations in both water and the fish species. However, Cd in both coastal waters showed high levels exceeding the international standards. The metal level concentration in the sample fishes are in the descending order livers > gills > muscles. A positive association between the trace metal concentrations and weight and length of the sample fishes was investigated. Fortunately the level of these metal concentrations in fish has not exceeded the permitted level of Malaysian and international standards.


2016 ◽  
Vol 2016 ◽  
pp. 1-14 ◽  
Author(s):  
Nsikak U. Benson ◽  
Paul A. Enyong ◽  
Omowunmi H. Fred-Ahmadu

The purpose of this study was to investigate and quantify trace metal concentrations inCommelina africanaL. and psammitic sandflats from an intertidal coastal ecosystem in Niger Delta, Nigeria, and to evaluate their spatial distribution, degree of contamination, and source apportionment. The environmental risks associated with soil contamination were elaborately assessed using potential ecological risk index, sediment quality guidelines, and enrichment relative to background levels. The mean concentrations of Cd, Cr, Ni, Pb, and Zn in sandflat soil samples are0.76±9.0×10-2,7.39±8.7×10-1,2.28±0.35,0.024±4.0×10-3, and74.51±2.55 mg/kg, respectively. Metal levels indicate strong variability with sampling sites. The order of trace metal concentrations in theCommelina africanaL. samples isZn>Ni>Cr>Pb>Cd. The concentrations varied with the sample locations; and the levels of Pb (0.05 to 0.08 mg/kg) at all locations are found to be significantly below permissible level of 0.3 mg/kg. Potential sources of metal loadings may be associated with localised or diffused anthropogenic activities. The average carcinogenic risks are below1.0×10-6threshold values, and the sandflat soils are not considered to pose significant health effects to children and adult males and females. However, the carcinogenicity and noncarcinogenicity risks ranking decrease following the orderchildren>adult  males>adult  females. Comparatively, the hazard quotient and hazard index indicate that the psammitic sandflats might pose a health risk to children in future.


Author(s):  
Bamba Bukengu Muhaya ◽  
Sonia Catherine Mulongo ◽  
Clarisse Zoza Kunyonga ◽  
Alexis Woot Mpomanga ◽  
Emery Mutombo Kalonda

2012 ◽  
Vol 10 (2) ◽  
pp. 295-304 ◽  
Author(s):  
Z. Severoglu ◽  
S. Sumer ◽  
B. Yalcin ◽  
Z. Leblebici ◽  
A. Aksoy
Keyword(s):  

2020 ◽  
Vol 10 (2) ◽  
pp. 249-261 ◽  
Author(s):  
Zafar Iqbal Khan ◽  
Ilker Ugulu ◽  
Shagufta Sahira ◽  
Naunain Mehmood ◽  
Kafeel Ahmad ◽  
...  

Abstract In the present study, the effects of untreated wastewater and associated health risks were assessed in an abundantly consumed vegetable, Luffa cylindrica. In this direction, trace metal accumulations in L. cylindrica samples irrigated with three different water regimes (municipal wastewater, groundwater, and canal water) were determined. The metal levels were defined by atomic absorption spectrophotometer equipped with a graphite furnace and D2 corrector. Trace metal concentrations in L. cylindrica samples were in the range of 7.91–9.01, 3.78–4.22, 0.54–0.63, 39.18–43.27, 15.76–20.82, 29.04–42.49, 6.96–8.24, 5.85–7.72, 4.06–4.39 and 0.18–0.42 mg/kg for Mo, As, Se, Fe, Cu, Zn, Ni, Pb, Cd and Co, respectively. The health risk index values of As, Cd, Pb, Mo, Ni, Se and Co; and pollution load index values of As, Mo, Ni, Cu, Cd and Pb were high, indicating possible phytotoxicity. As had the highest value for the pollution load index suggesting high-risk levels. High levels of some metals could be an alarm call for consumers as the vegetable is irrigated with untreated wastewater.


2015 ◽  
Vol 23 (2) ◽  
pp. 1681-1690 ◽  
Author(s):  
Rym Zakhama-Sraieb ◽  
Yassine Ramzi Sghaier ◽  
Ahmed Ben Hmida ◽  
Giovanna Cappai ◽  
Alessandra Carucci ◽  
...  

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