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42555

ENVIRONMENTAL STUDIES: LEVELS OF METAL CONTENTS IN DRINKING WATER AND IN TEA LEAVES COMMERCIALLY AVAILABLE IN EGYPT AND THEIR INFUSIONS

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Last updated: 22 Jan 2023

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Abstract

Na, K, Ca, Mg, Mn, Fe, Zn, Cu, Co, Cd, Pb, Ba, Al, B, Cr, Mo, Ni, Sr, V, As, Hg, Se and Sb contents of the used drinking water and commercially available Egyptian tea leaves (Al-Arosa, Lipton, Dilma Black Teas and Dr Life green Tea) and their infusions were analyzed by Inductively coupled plasma spectrometry (ICPS), Flame photometer, and UV/Visible spectrophotometer. The used drinking water was characterized by its low content of metal ions and some metal ions (As, Hg, Se and Sb) were low to be detected. The metal contents of tea leaves were found to be higher than those of tea infusions. In both black tea leaves and their infusions levels of metals (Fe, Co, Cd, B, Cr, Mo, V and Pb) were too low assuring that the commercially available Egyptian tea possess no health risk from toxic elements. The concentrations of metals in the four tea brands were found in the following order; K > Mg > Mn > Zn> Ba > Al > Ni.
Conclusively, from these results it could be concluded that drinking tap water and tea brands infusions under investigation are safe for public health and provide an acceptable quantity of mineral and trace elements per day.
 

DOI

10.21608/jpd.2013.42555

Keywords

Drinking water, Black tea, green tea, Tea infusion, Heavy metals, Inductively Coupled Plasma Spectrophotometer (ICPS)

Authors

First Name

Akmal

Last Name

Gaballa

MiddleName

-

Affiliation

Faculty of Specific Education, Zagazig University, Zagazig, Egypt

Email

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City

zagazig

Orcid

-

First Name

Nahed

Last Name

Shehata

MiddleName

-

Affiliation

Faculty of Specific Education, Zagazig University, Zagazig, Egypt

Email

-

City

zagazig

Orcid

-

First Name

Ahdab

Last Name

El-Maadawy

MiddleName

-

Affiliation

Faculty of Specific Education, Zagazig University, Zagazig, Egypt

Email

-

City

Zagazig

Orcid

-

First Name

Adel

Last Name

Hamouda

MiddleName

-

Affiliation

Hydro-chemistry Department, Desert Research Center, Egypt

Email

-

City

Cairo

Orcid

-

Volume

18

Article Issue

2

Related Issue

6655

Issue Date

2013-04-01

Receive Date

2013-01-15

Publish Date

2013-04-01

Page Start

115

Page End

128

Print ISSN

1110-2543

Online ISSN

2682-3322

Link

https://jpd.journals.ekb.eg/article_42555.html

Detail API

https://jpd.journals.ekb.eg/service?article_code=42555

Order

1

Type

Original Article

Type Code

867

Publication Type

Journal

Publication Title

Journal of Productivity and Development

Publication Link

https://jpd.journals.ekb.eg/

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Article

Created At

22 Jan 2023