title: Health risk assessment of eight heavy metals in nine varieties of edible vegetable oils consumed in China.
abstract: Eight heavy metals, namely Cu, Zn, Fe, Mn, Cd, Ni, Pb and As, in nine varieties of edible vegetable oils collected from China were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES) and graphite furnace atomic absorption spectrometry (GF-AAS) after microwave digestion. The accuracy of procedure was confirmed by certified reference materials (GBW10018 and GBW08551). The relative standard deviations were found below 10%. The concentrations for copper, zinc, iron, manganese, nickel, lead and arsenic were observed in the range of 0.214-0.875, 0.742-2.56, 16.2-45.3, 0.113-0.556, 0.026-0.075, 0.009-0.018 and 0.009-0.019 μg g(-1), respectively. Cadmium was found to be 2.64-8.43 μg/kg. In general, iron content was higher than other metals in the investigated edible vegetable oils. Comparing with safety intake levels for these heavy metals recommended by Institute of Medicine of the National Academies (IOM), US Environmental Protection Agency (US EPA) and Joint FAO/WHO Expert Committee on Food Additives (JECFA), the dietary intakes of the eight heavy metals from weekly consumption of 175 g of edible vegetable oils or daily consumption 25 g of edible vegetable oils for a 70 kg individual should pose no risk to human health.
authors.affiliation: School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, 453003 Xinxiang, China. fkzhu001@163.com
authors.forename: Fangkun
authors.initials: F
authors.lastname: Zhu
authors.forename: Wenxiu
authors.initials: W
authors.lastname: Fan
authors.forename: Xuejing
authors.initials: X
authors.lastname: Wang
authors.forename: Li
authors.initials: L
authors.lastname: Qu
authors.forename: Shuwen
authors.initials: S
authors.lastname: Yao
mesh_terms: D001151:Arsenic / Q000032:analysis; D002104:Cadmium / Q000032:analysis; D002681:China; D004784:Environmental Monitoring / Q000379:methods; D004785:Environmental Pollutants / Q000032:analysis; D004787:Environmental Pollution / Q000706:statistics & numerical data; D005504:Food Analysis / Q000379:methods*; D005506:Food Contamination / Q000032:analysis*; D007854:Lead / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis*; D010938:Plant Oils / Q000032:analysis / Q000737:chemistry*; D018570:Risk Assessment; D013054:Spectrophotometry, Atomic / Q000379:methods; D014481:United States; D014484:United States Environmental Protection Agency
chemical_list: D004785:Environmental Pollutants; D019216:Metals, Heavy; D010938:Plant Oils; D002104:Cadmium; D007854:Lead; D001151:Arsenic