IDEAS home Printed from https://ideas.repec.org/a/gam/jijerp/v15y2018i3p556-d137086.html
   My bibliography  Save this article

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

Author

Listed:
  • Weiwei Zhang

    (Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China)

  • Yungang Liu

    (Department of Toxicology, School of Public Health, Southern Medical University, Guangzhou 510515, China)

  • Yufei Liu

    (Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China)

  • Boheng Liang

    (Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China)

  • Hongwei Zhou

    (Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China)

  • Yingyue Li

    (Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China)

  • Yuhua Zhang

    (Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China)

  • Jie Huang

    (Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China)

  • Chao Yu

    (Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China)

  • Kuncai Chen

    (Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China)

Abstract

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.

Suggested Citation

  • Weiwei Zhang & Yungang Liu & Yufei Liu & Boheng Liang & Hongwei Zhou & Yingyue Li & Yuhua Zhang & Jie Huang & Chao Yu & Kuncai Chen, 2018. "An Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China," IJERPH, MDPI, vol. 15(3), pages 1-10, March.
  • Handle: RePEc:gam:jijerp:v:15:y:2018:i:3:p:556-:d:137086
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1660-4601/15/3/556/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1660-4601/15/3/556/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Florence Mhungu & Kuncai Chen & Yanyan Wang & Yufei Liu & Yuhua Zhang & Xinhong Pan & Yanfang Cheng & Yungang Liu & Weiwei Zhang, 2022. "Probabilistic Risk Assessment of Dietary Exposure to Cadmium in Residents of Guangzhou, China—Young Children Potentially at a Health Risk," IJERPH, MDPI, vol. 19(15), pages 1-11, August.
    2. Man Wang & Boheng Liang & Weiwei Zhang & Kuncai Chen & Yuhua Zhang & Hongwei Zhou & Yanfang Cheng & Huachun Liu & Xianwu Zhong & Yingyue Li & Yufei Liu, 2019. "Dietary Lead Exposure and Associated Health Risks in Guangzhou, China," IJERPH, MDPI, vol. 16(8), pages 1-16, April.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jijerp:v:15:y:2018:i:3:p:556-:d:137086. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.