Toxic heavy metals and nutrient concentration in the milk of goat herds in two Iranian industrial and non-industrial zones, By Ali Mohammad Sanati

Research

Title	Toxic heavy metals and nutrient concentration in the milk of goat herds in two Iranian industrial and non-industrial zones
Type	Article
Keywords	Goat milk . Asaluyeh . Kaki . Health risk assessment . Heavy metals . Nutrient
Journal	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
DOI	h https://doi.org/10.1007/s11356-020-11732-w
Researchers	Nasrin Homayonibezi (First researcher) , Hossein Arfaeinia (Third researcher) , Marzieh Mahmoodi (Fourth researcher) , Ali Mohammad Sanati (Fifth researcher) , Mohammad Reza Farzaneh (Not in first six researchers) , Raheleh Kafaei (Not in first six researchers) , Maryam Afsari (Not in first six researchers) , Bahman Ramavandi (Not in first six researchers)

Abstract

This work aimed to explore the concentration of nickel, manganese, iron, copper, chromium, and lead in the milk of goat herds in the industrial area of Asaluyeh (southern Iran) and the non-industrial area of Kaki. The milk of 16 goat herds (each herd had at least ten goats) was collected in several villages in each area, and at the same time, the drinking water and forage of goats were sampled. The concentration of elements in the samples was determined by ICP-OES. The mean concentrations of chromium, copper, iron, manganese, lead, and nickel in milk samples of the Asaluyeh area were 16.423 ± 0.349, 0.146 ± 0.118, 6.111 ± 0.501, 0.239 ± 0.016, 0.141 ± 0.030, and 1.447 ± 0.101 mg/kg, respectively. Concentrations of heavy metals (except for copper) in the milk of goats in the industrialized area of Asaluyeh were significantly higher than that of Kaki (P < 0.05). Also, the content of heavy metals was significantly correlated with lactose levels (P < 0.05). The hazard index for drinking the goat milk was computed to be 0.444 and 0.386 for the Asaluyeh and Kaki area, respectively, which shows a minimal effect of this exposure pathway.