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Articles by Aarti Maurya
Total Records ( 2 ) for Aarti Maurya
  Aarti Maurya , Tarana Negi and Ram Krishna Negi
  Background and Objective: Heavy metals are one of the most common environmental pollutants and their presence in an aquatic ecosystem has become a major global environmental problems. The pond in Bhagwanpur region is used for polyculture of major carps. Rapid industrialization, sewage discharge, agricultural runoff and dumping of waste materials are challenges that Bhagwanpur fish pond is facing. The present research was aimed to study the seasonal distribution of some heavy metals (Copper (Cu), Chromium (Cr), Lead (Pb), Nickel (Ni) and Zinc (Zn)) in water and sediment samples collected from Bhagwanpur fish pond. Materials and Methods: The samples were collected for all four seasons from March, 2012 to February, 2014. After acid digestion, the samples of water and sediment were analyzed for levels of heavy metals using the Atomic Absorption Spectrophotometer. Data obtained were analyzed using one-way ANOVA and correlation coefficient. Results: Data collected for Cr (0.277 ppm), Pb (0.142 ppm) and Ni (0.187 ppm) in water was higher than the permissible limit of World Health Organization (WHO), Environmental Protection Agency (EPA) and United States Environmental Protection Agency (USEPA). The statistical analysis (ANOVA) reveals a significant effect of season on all metal in sediment except Ni (p = 0.503). However, in water, only Zn (p = 0.014) showed a statistically significant seasonal variation. Correlation coefficient value indicates a positive relationship between metal concentration within water and sediment. The concentrations of Cu (63.49 μg g–1), Cr (48.74 μg g–1) and Pb (104.41 μg g–1) in sediment were higher than Threshold Effect Concentration (TEC) level recommended by Sediment Quality Guidelines. The highest concentration of metals in water was recorded in summer and lowest in spring, while in sediment metal concentrations was higher in winter and lower in summer and autumn. Conclusion: The result revealed that there is a considerable need for better understanding so that the pond can be managed effectively and the findings from this investigation can serve as baseline environmental data for monitoring of heavy metals accumulation in the pond.
  R.K. Negi and Aarti Maurya
  Aquatic ecosystem pollution by heavy metals is a worldwide concern. Heavy metals have the ability to bioaccumulate in aquatic organisms, particularly fish, which is a source of livelihood for humans. Between March 2012 and February 2014, we assessed heavy metal (Cu, Cr, Pb, Ni, Zn and Cd) contamination in two food fish species (Labeo rohita and Hypophthalmichthys molitrix) selected from Bhagwanpur fish pond in Roorkee, Haridwar, India. After acid digestion, the dried samples of fish tissues were analyzed for heavy metal concentrations by using atomic absorption spectrophotometery. Data obtained was analyzed using two way analysis of variance and Pearson’s correlation coefficient. The mean absorption of metals in different organs of L. rohita and H. molitrix ranged from 5.754±2.591-56.851±12.569 μg g–1 dry weight and from 5.455±3.651-53.625±11.432 μg g–1 dry weight, respectively. Heavy metal absorption was the highest in gill and liver tissues and the lowest in muscle tissues. Among all metals, Zn had the highest concentration in all the fish tissues. Statistical analysis revealed a significant variation (p<0.05) in heavy metal concentrations in the fish tissues during different seasons. The highest concentrations of heavy metals were found in the summer and the lowest in the spring. The concentrations of most of the studied heavy metals in the fish muscle (the edible part), liver, gill and scale tissues were higher than the permissible limits proposed by the World Health Organization, Food and Agriculture Organization and Ministry of Agriculture, Fisheries and Food.
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