Dietary Cadmium Exposure Assessment in Rural Areas of Southwest China

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2018 Aug 3

PMID 30071058

Citations 7

Authors

Jiao Huo

Zhenzhen Huang

Renjia Li

Yang Song

Zhen Lan

Sijia Ma

Yongning Wu

Jinyao Chen

Lishi Zhang

Affiliations

Soon will be listed here.

Abstract

Dietary exposure of cadmium (Cd) has not been studied in Southwest China. The objective of the study was to determine the pollution characteristics and contamination levels in various agriculture products in Southwest China and to conduct a comparison of dietary exposure assessment of Cd in polluted and non-polluted areas. Results showed that the mean Cd contents in rice were 0.53 and 0.52 mg/kg in the high-polluted and low-polluted areas, respectively, with the average value was 0.03 mg/kg in the control area. The mean dietary Cd exposure from rice and vegetables of the selected non-occupational residents in Southwest China was 113.10 μg/kg bodyweight (bw)/month, 88.80 μg/kg bw/month, and 16.50 μg/kg bw/month in the high-polluted, low-polluted, and control areas, respectively, which correspond to 4.5 times, 3.6 times, and 0.66 times of the provisional tolerable monthly intake (25 μg/kg bw/month) established by the Joint FAO/WHO Expert Committee on Food Additives. The findings indicated that the risk for Cd exposure of residents was high due to home-grown food (most especially rice) being near polluted areas and is of great concern.

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