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Paper Information

Journal:   JOURNAL OF ADVANCES IN ENVIRONMENTAL HEALTH RESEARCH   2017 , Volume 5 , Number 4; Page(s) 241 To 245.
 
Paper: 

EVALUATING THE ARSENIC, CADMIUM, LEAD, AND COPPER LEVELS IN CERTAIN IMPORTED TEA SAMPLES CONSUMED IN IRAN

 
 
Author(s):  NASRI FARIBORZ*, AMINI NADER, MOHAMMADI PARHAM
 
* DEPARTMENT OF CHEMISTRY, COLLEGE OF SCIENCE, SANANDAJ BRANCH, ISLAMIC AZAD UNIVERSITY, KURDISTAN, IRAN
 
Abstract: 

Seven majorly consumed brands of several teas (A1, A2, M1, M2, S, D, and C teas) were selected for the present study. In this study, the heavy metal contents including copper (Cu), cadmium (Cd), arsenic (As), and lead (Pb) were assessed in the black tea samples consumed in Iran. The content of the heavy metals in the samples was analyzed using atomic absorption spectroscopy (AAS). Notably, the minimal amount of As (0.043±0.006 ppm), Pb (0.040 ± 0.005 ppm), Cd (0.016±0.001 ppm), and Cu (5.36±0.49 ppm) concentrations were found in the M1, S, M2, and M2 teas, respectively; whereas, the maximal amount of As (0.287±0.007 ppm), Pb (0.228 ± 0.002 ppm), Cd (0.101±0.040 ppm), and Cu (37.4±0.53 ppm) concentrations were found in the D, A1, M1, and D teas, respectively.
Considering the present safety standards, the tea versions selected in this study were determined to be fit and safe for human consumption.

 
Keyword(s): BLACK TEA, HEAVY METALS, ATOMIC ABSORPTION SPECTROSCOPY
 
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