Evaluation of concentration of heavy metals and microbial contamination in parsley (Petroselinum crispum) vegetable

Document Type : Original Article

Authors

1 Department of Chemical Engineering, Technical Faculty, Lahijan Branch, Islamic Azad University, Lahijan, Iran

2 Polymer Department, Technical Faculty, South Tehran Branch, Islamic Azad University, Tehran, Iran

3 Department of Chemistry, Payame Noor University, Tehran, Iran

4 Faculty of Polymer Engineering, Sahand University of Technology, P.O. Box 51335-1996, Tabriz, Iran

10.2234/chemrestec.2023.181245

Abstract

Heavy metals can be considered one of the most important pollutants in the environment because besides being toxic, they have stability and high accumulation properties, and these metals are easily transferred to arable lands. In this study, due to the high use of parsley (Petroselinum crispum) by the local people (north of Iran) in their meals, its contamination level has been investigated. Hence, heavy metals including arsenic (As), cadmium (Cd), lead (Pb), and mercury (Hg) were evaluated in parsley obtained from local farms in the Tamchal region (Astaneh-ye Ashrafiyeh city, Iran). Also, the samples were evaluated for microbial contamination (Coliform, total microbial count). For this purpose, three local farms were identified in the Tamchal region and parsley was obtained from each farm and the amount of heavy metals and microbial contamination was evaluated. The results showed that only the parsley of one farm had heavy metals and microbial contamination beyond the standard.