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Current World Environment
Assessment of Heavy Metals in Water, Fish and Sediments from UKE Stream, Nasarawa State, Nigeria
In this study, the concentrations of selected heavy metals including Pb, Zn, Cr, Ni, Cu, As, and Cd in different brands of canned vegetables and fruits including canned tomato sauce ketchup , canned green beans, canned whole carrots, and canned juice pineapple imported to Jordanian market were determined by acid digestion and atomic absorption spectroscopy. Samples were collected from popular Jordanian markets, Irbid city, Northern Jordan 11 samples of each type. The metal concentrations in the samples analyzed were found to be in the range of 2. The results obtained showed that Pb and As have the highest concentrations in the most of samples analyzed, whereas, the lowest concentrations obtained were mainly in Cd. For example, in canned tomato sauce, the average concentrations of heavy metals are 3. The results of this study reveal that the concentration of some toxic heavy metals Pb, Cr, Ni, As, and Cd in canned vegetable and fruit samples being sold in Jordanian markets exceeded the permissible limits set by different health organizations.
Mercury Toxicity and Treatment: A Review of the Literature
The Karnaphuli River estuary, located in southeast coast of Bangladesh, is largely exposed to heavy metal contamination as it receives a huge amount of untreated industrial effluents from the Chottagram City. This study aimed to assess the concentrations of five heavy metals As, Pb, Cd, Cr and Cu and their bioaccumulation status in six commercially important fishes, and also to evaluate the potential human health risk for local consumers. The bioaccumulation factors BAFs of the contaminants observed in the species were in the following orders: Cu
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