4.7 Article

Dietary cadmium intake from rice and vegetables and potential health risk: A case study in Xiangtan, southern China

Journal

SCIENCE OF THE TOTAL ENVIRONMENT
Volume 639, Issue -, Pages 271-277

Publisher

ELSEVIER
DOI: 10.1016/j.scitotenv.2018.05.050

Keywords

Cadmium (Cd); Soil; Rice; Vegetable; Dietary intake

Funding

  1. Special Fund for Agro-scientific Research in the Public Interest [201403014, 201403015]
  2. Natural Science Foundation of China [41671309]
  3. Innovative Research Team Development Plan of the Ministry of Education of China [IRT_17R56]
  4. Fundamental Research Funds for the Central Universities [KYT201802]

Ask authors/readers for more resources

Soil contamination in some areas of southern China has resulted in elevated dietary intake of cadmium( Cd), posing a potential risk to human health. A survey of paired soil-rice (n=200) and soil-vegetable (n=142) samples was conducted in Xiangtan county of Hunan province, southern China. The concentrations of Cd in all the samples were determined by inductively coupled plasmamass spectrometry. Dietary intakes of Cd from the consumption of locally produced rice and vegetables were estimated for different age groups. Among the 342 crop samples collected in the survey, 88% and 29% of rice grain and vegetable samples, respectively, exceeded the Chinesemaximum permissible limit for Cd (0.2 mg dry weight kg(-1), 0.2 mg fresh weight kg(-1) and 0.1 mg fresh weight kg(-1) for rice, leafy vegetables and for rootstalk and legume vegetables, respectively). The median dietary Cd intake varied from 66.5 to 116 mu g Cd kg(-1) body weight (BW) month(-1), with children (4-11 years) exhibiting the highest intake. These values are 2.7-4.6 times the tolerable dietary intake of 25 mu g kg(-1) BW month(-1) recommended by the Joint FAO/WHO Expert Committee on Food Additives. For the general population in Xiangtan county, rice contributed the majority (81%) of the Cd intake with vegetables contributing only 19%. The median hazard quotient calculated from dietary Cd intake was 2.4 times the permissible level, indicating a high risk to the local residents. This study highlights an urgent need to reduce the transfer of Cd from soil to the food chain in the investigated region. (C) 2018 Elsevier B.V. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available