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Determination of Copper, Nickel and Chromium Contents in Cultivated Tea in North of Iran Publisher



Mohagheghian A1 ; Mahvi AH1, 2, 3 ; Shekoohiyan S1 ; Koolivand A4 ; Nazmara S1 ; Aslani H1 ; Brahmand MB5 ; Dobaradaran S6
Authors
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Authors Affiliations
  1. 1. School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. School of Public Health, Arak University of Medical Sciences, Arak, Iran
  5. 5. Rasht Healthcares Center, Guilan University of Medical Sciences, Rasht, Iran
  6. 6. School of Public Health, Bushehr University of Medical Sciences, Bushehr, Iran

Source: Environmental Engineering and Management Journal Published:2015


Abstract

The aim of this study is to investigate the copper (Cu), nickel (Ni) and chromium (Cr) levels in cultivated black tea in north of Iran. The infusions of Cu, Cr and Ni in tea after 5, 15 and 60 min brewing time were measured. Results showed that the highest (2.32±2.63 mg/kg) and the lowest (2.16±1.84 mg/kg) mean levels of Cu were observed after 15 and 60 min, respectively. The mean levels of Ni and Cr at 60 min were the highest (13.72±8.09 mg/kg and 1.30±1.03 mg/kg, respectively) and at 5 min were the lowest (6.80±4.95 mg/kg and 0.88±0.79 mg/kg, respectively). © 2015, Gh. Asachi Technical University of Iasi. All Rights Reserved.
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