Uptake of Cd, Pb, and Ni by Origanum syriacum produced in Lebanon

Trace metals are found naturally in soil. However, the increase in industrial and agricultural polluting activities has increased trace metal contamination and raised high concerns in the public health sector. The study was conducted on Origanum syriacum , one of the most consumed herbs in the Middl...

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Bibliographic Details
Published in:Environmental geochemistry and health 2020-08, Vol.42 (8), p.2293-2303
Main Authors: Dbaibo, Razan, Bashour, Isam, Hamadeh, Shady, Toufeili, Imad
Format: Article
Language:English
Subjects:
Agricultural pollution
Cadmium
Contamination
Earth and Environmental Science
Environment
Environmental Chemistry
Environmental Health
Experiments
Food contamination & poisoning
Geochemistry
Heavy metals
Herbs
Industrial pollution
International organizations
Lead
Metals
Nickel
Origanum
Original Paper
Outlets
Pollutants
Poultry manure
Public Health
Soil
Soil contamination
Soil pollution
Soil Science & Conservation
Soils
Terrestrial Pollution
Tissue
Trace elements
Trace metals
Uptake
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Summary:Trace metals are found naturally in soil. However, the increase in industrial and agricultural polluting activities has increased trace metal contamination and raised high concerns in the public health sector. The study was conducted on Origanum syriacum , one of the most consumed herbs in the Middle East, and was divided into three parts. (1) Pot experiment: to study the effect of Cd, Pb, or Ni levels in soil on their uptake by O. syriacum . (2) Field samples: collected from major agricultural regions in Lebanon to analyze Cd, Pb, and Ni concentrations in soil and leaves. (3) Sale outlets samples: to measure the levels of Cd, Pb, and Ni in O. syriacum tissues in the market. Results showed that there was a positive correlation between levels of Cd, Pb, and Ni in soil and those in O. syriacum tissues. None of the field samples contained Pb or Ni that exceeded the maximum allowable limits (MAL). Three samples collected from heavily poultry-manured soil contained Cd higher than the MAL. Samples collected from sale outlets did not exceed the MAL for Ni but two exceeded the MAL for Cd and one for Pb. Trace metal contamination is not a major concern in O. syriacum produced in Lebanon. Only one mixture sample from a sale outlet was higher in Pb than the MAL and three samples from heavily manured fields exceeded the MAL for Cd.
ISSN:0269-4042
1573-2983
DOI:10.1007/s10653-019-00383-7