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Seasonal variations of heavy metal contamination in river Gomti of Lucknow city region


The present study deals with the seasonal variations in the concentrations of heavy metals namely chromium, lead and mercury by using spectrophotometric methods. The water samples were collected at regular intervals from five selected sites of river Gomti in the pre-monsoon period (months of February–May) and the post monsoon period (months of October–January). The concentrations of chromium (VI) and mercury (II) were determined by using Genesys-10 UV-VIS Spectrophotometer while lead (II) concentrations were determined using Atomic Absorption Spectrophotometer, Perkin-Elmer 5000 model. The concentrations of all the three metals were found to be higher in the pre-monsoon period than in the post-monsoon period. The statistical analysis of the data was discussed in both the seasons in terms of mean, standard deviation and coefficient of variation.

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Correspondence to Minaxi B. Lohani.

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Lohani, M.B., Singh, A., Rupainwar, D.C. et al. Seasonal variations of heavy metal contamination in river Gomti of Lucknow city region. Environ Monit Assess 147, 253–263 (2008).

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