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An Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China

Cadmium and its compounds are human carcinogens with severe organ toxicity, and their contamination of agricultural soil in China has been frequently reported; however, the dietary exposure to cadmium in residents and the relevant health risk have seldom been reported. In this study, the concentrati...

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Autores principales: Zhang, Weiwei, Liu, Yungang, Liu, Yufei, Liang, Boheng, Zhou, Hongwei, Li, Yingyue, Zhang, Yuhua, Huang, Jie, Yu, Chao, Chen, Kuncai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5877101/
https://www.ncbi.nlm.nih.gov/pubmed/29558399
http://dx.doi.org/10.3390/ijerph15030556
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author Zhang, Weiwei
Liu, Yungang
Liu, Yufei
Liang, Boheng
Zhou, Hongwei
Li, Yingyue
Zhang, Yuhua
Huang, Jie
Yu, Chao
Chen, Kuncai
author_facet Zhang, Weiwei
Liu, Yungang
Liu, Yufei
Liang, Boheng
Zhou, Hongwei
Li, Yingyue
Zhang, Yuhua
Huang, Jie
Yu, Chao
Chen, Kuncai
author_sort Zhang, Weiwei
collection PubMed
description Cadmium and its compounds are human carcinogens with severe organ toxicity, and their contamination of agricultural soil in China has been frequently reported; however, the dietary exposure to cadmium in residents and the relevant health risk have seldom been reported. In this study, the concentration of cadmium in various types of food collected from 2013 to 2015 were analyzed using graphite furnace atomic absorption spectrometry, and the dietary exposure to cadmium assessed based on a dietary survey in 2976 Guangzhou residents. In total, 3074 out of 4039 food samples had cadmium levels above the limit of detection. The mean ± standard deviation (50th, 95th percentile) cadmium content in all samples was 159.0 ± 112.7 (8.6, 392.4) μg/kg, with levels ranging from 1.0 to 7830 μg/kg. Using the mean cadmium concentrations, the average monthly dietary exposure of Guangzhou residents to cadmium was 14.4 (μg/kg body weight (BW), accounting for 57.6% of the provisional tolerable monthly intake (PTMI). Rice, laver, vegetables, and live aquatic products were the main sources of cadmium intake, on average accounting for 89% of the total value. The dietary cadmium exposure in high consumers (95th percentile food consumption) was 41.0 μg/kg·BW/month, accounting for 163% of the PTMI. Additionally, dietary cadmium exposure at mean consumption but high cadmium food concentration (95th percentile) was 32.3 μg/kg·BW/month, corresponding to 129% of the PTMI. The level of dietary exposure to cadmium in most Guangzhou residents was within the safety limit, thus increased health risk from dietary cadmium exposure is low at present. However, continued efforts by local governments to monitor the levels of cadmium in the four main food categories contributing to exposure are necessary.
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spelling pubmed-58771012018-04-09 An Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China Zhang, Weiwei Liu, Yungang Liu, Yufei Liang, Boheng Zhou, Hongwei Li, Yingyue Zhang, Yuhua Huang, Jie Yu, Chao Chen, Kuncai Int J Environ Res Public Health Article Cadmium and its compounds are human carcinogens with severe organ toxicity, and their contamination of agricultural soil in China has been frequently reported; however, the dietary exposure to cadmium in residents and the relevant health risk have seldom been reported. In this study, the concentration of cadmium in various types of food collected from 2013 to 2015 were analyzed using graphite furnace atomic absorption spectrometry, and the dietary exposure to cadmium assessed based on a dietary survey in 2976 Guangzhou residents. In total, 3074 out of 4039 food samples had cadmium levels above the limit of detection. The mean ± standard deviation (50th, 95th percentile) cadmium content in all samples was 159.0 ± 112.7 (8.6, 392.4) μg/kg, with levels ranging from 1.0 to 7830 μg/kg. Using the mean cadmium concentrations, the average monthly dietary exposure of Guangzhou residents to cadmium was 14.4 (μg/kg body weight (BW), accounting for 57.6% of the provisional tolerable monthly intake (PTMI). Rice, laver, vegetables, and live aquatic products were the main sources of cadmium intake, on average accounting for 89% of the total value. The dietary cadmium exposure in high consumers (95th percentile food consumption) was 41.0 μg/kg·BW/month, accounting for 163% of the PTMI. Additionally, dietary cadmium exposure at mean consumption but high cadmium food concentration (95th percentile) was 32.3 μg/kg·BW/month, corresponding to 129% of the PTMI. The level of dietary exposure to cadmium in most Guangzhou residents was within the safety limit, thus increased health risk from dietary cadmium exposure is low at present. However, continued efforts by local governments to monitor the levels of cadmium in the four main food categories contributing to exposure are necessary. MDPI 2018-03-20 2018-03 /pmc/articles/PMC5877101/ /pubmed/29558399 http://dx.doi.org/10.3390/ijerph15030556 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Weiwei
Liu, Yungang
Liu, Yufei
Liang, Boheng
Zhou, Hongwei
Li, Yingyue
Zhang, Yuhua
Huang, Jie
Yu, Chao
Chen, Kuncai
An Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China
title An Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China
title_full An Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China
title_fullStr An Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China
title_full_unstemmed An Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China
title_short An Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China
title_sort assessment of dietary exposure to cadmium in residents of guangzhou, china
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5877101/
https://www.ncbi.nlm.nih.gov/pubmed/29558399
http://dx.doi.org/10.3390/ijerph15030556
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