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Determination of lead, cadmium and arsenic in infusion tea cultivated in north of Iran

Tea is one of the most common drinks in all over the world. Rapid urbanization and industrialization in recent decades has increased heavy metals in tea and other foods. In this research, heavy metal contents such as lead (Pb), cadmium (Cd) and arsenic (As) were determined in 105 black tea samples c...

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Autores principales: Shekoohiyan, Sakine, Ghoochani, Mahboobeh, Mohagheghian, Azita, Mahvi, Amir Hossein, Yunesian, Masoud, Nazmara, Shahrokh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3561104/
https://www.ncbi.nlm.nih.gov/pubmed/23369381
http://dx.doi.org/10.1186/1735-2746-9-37
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author Shekoohiyan, Sakine
Ghoochani, Mahboobeh
Mohagheghian, Azita
Mahvi, Amir Hossein
Yunesian, Masoud
Nazmara, Shahrokh
author_facet Shekoohiyan, Sakine
Ghoochani, Mahboobeh
Mohagheghian, Azita
Mahvi, Amir Hossein
Yunesian, Masoud
Nazmara, Shahrokh
author_sort Shekoohiyan, Sakine
collection PubMed
description Tea is one of the most common drinks in all over the world. Rapid urbanization and industrialization in recent decades has increased heavy metals in tea and other foods. In this research, heavy metal contents such as lead (Pb), cadmium (Cd) and arsenic (As) were determined in 105 black tea samples cultivated in Guilan and Mazandaran Provinces in north of Iran and their tea infusions. The amount of heavy metals in black tea infusions were analyzed using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP - AES). The mean ± SD level of Pb in 5, 15 and 60 min in infusion tea samples were 0.802 ± 0.633, 0.993 ± 0.667 and 1.367 ± 1.06 mg/kg of tea dry weight, respectively. The mean level of Cd in 5, 15 and 60 min in infusion tea samples were 0.135 ± 0.274, 0.244 ± 0.46 and 0.343 ± 0.473 mg/kg of tea dry weight, respectively. The mean level of As in 5, 15 and 60 min in infusion tea samples were 0.277 ± 0.272, 0.426 ± 0.402 and 0.563 ± 0.454 mg/kg of tea dry weight, respectively. Also, the results showed that the locations and the infusion times influenced upon the amount of these metals (P < 0.05).
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spelling pubmed-35611042013-02-05 Determination of lead, cadmium and arsenic in infusion tea cultivated in north of Iran Shekoohiyan, Sakine Ghoochani, Mahboobeh Mohagheghian, Azita Mahvi, Amir Hossein Yunesian, Masoud Nazmara, Shahrokh Iranian J Environ Health Sci Eng Research Article Tea is one of the most common drinks in all over the world. Rapid urbanization and industrialization in recent decades has increased heavy metals in tea and other foods. In this research, heavy metal contents such as lead (Pb), cadmium (Cd) and arsenic (As) were determined in 105 black tea samples cultivated in Guilan and Mazandaran Provinces in north of Iran and their tea infusions. The amount of heavy metals in black tea infusions were analyzed using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP - AES). The mean ± SD level of Pb in 5, 15 and 60 min in infusion tea samples were 0.802 ± 0.633, 0.993 ± 0.667 and 1.367 ± 1.06 mg/kg of tea dry weight, respectively. The mean level of Cd in 5, 15 and 60 min in infusion tea samples were 0.135 ± 0.274, 0.244 ± 0.46 and 0.343 ± 0.473 mg/kg of tea dry weight, respectively. The mean level of As in 5, 15 and 60 min in infusion tea samples were 0.277 ± 0.272, 0.426 ± 0.402 and 0.563 ± 0.454 mg/kg of tea dry weight, respectively. Also, the results showed that the locations and the infusion times influenced upon the amount of these metals (P < 0.05). BioMed Central 2012-12-31 /pmc/articles/PMC3561104/ /pubmed/23369381 http://dx.doi.org/10.1186/1735-2746-9-37 Text en Copyright ©2012 mahvi et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Shekoohiyan, Sakine
Ghoochani, Mahboobeh
Mohagheghian, Azita
Mahvi, Amir Hossein
Yunesian, Masoud
Nazmara, Shahrokh
Determination of lead, cadmium and arsenic in infusion tea cultivated in north of Iran
title Determination of lead, cadmium and arsenic in infusion tea cultivated in north of Iran
title_full Determination of lead, cadmium and arsenic in infusion tea cultivated in north of Iran
title_fullStr Determination of lead, cadmium and arsenic in infusion tea cultivated in north of Iran
title_full_unstemmed Determination of lead, cadmium and arsenic in infusion tea cultivated in north of Iran
title_short Determination of lead, cadmium and arsenic in infusion tea cultivated in north of Iran
title_sort determination of lead, cadmium and arsenic in infusion tea cultivated in north of iran
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3561104/
https://www.ncbi.nlm.nih.gov/pubmed/23369381
http://dx.doi.org/10.1186/1735-2746-9-37
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