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Dietary Lead Exposure and Associated Health Risks in Guangzhou, China

Author

Listed:
  • Man Wang

    (School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
    These authors contributed equally to this work.)

  • Boheng Liang

    (Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
    These authors contributed equally to this work.)

  • Weiwei Zhang

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

  • Kuncai Chen

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

  • Yuhua Zhang

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

  • Hongwei Zhou

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

  • Yanfang Cheng

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

  • Huachun Liu

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

  • Xianwu Zhong

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

  • Yingyue Li

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

  • Yufei Liu

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

Abstract

Lead exposure is associated with a wide range of adverse effects on human health. The principal exposure route in the general population is through the diet. In this study, we estimate the dietary lead intake and associated health risks among the residents of Guangzhou, China. Data on lead concentrations were derived from the food safety risk monitoring system, which included 6339 samples from 27 food categories collected in 2014–2017. Food consumption data were taken from a 2011 dietary survey of 2960 Guangzhou residents from 998 households. Dietary lead intake was estimated by age group (3–6, 7–17, 18–59, and ≥60 years), and relevant health risks were assessed using the margin of exposure (MOE) method. The mean and 95th percentiles (P95) of dietary lead intake were respectively 0.7466 and 2.4525 μg/kg body weight per day for preschool children aged 3–6 years; 0.4739 and 1.5522 μg/kg bw/day for school children aged 7–17 years; 0.3759 and 1.1832 μg/kg bw/day for adults aged 18–59 years; and 0.4031 and 1.3589 μg/kg bw/day for adults aged ≥60 years. The MOE value was less than 1 for preschool children at the mean exposure level and for all age groups at the P95 exposure level. Rice and its products, leafy vegetables, and wheat flour and its products were found to be the primary food sources of lead exposure. Our findings suggest that the health risk from dietary lead exposure is low for Guangzhou residents overall, but that young children and consumers of certain foods may be at increased risk. Continued efforts are needed to reduce the dietary lead exposure in Guangzhou.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jijerp:v:16:y:2019:i:8:p:1417-:d:224513
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    References listed on IDEAS

    as
    1. 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.
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    Cited by:

    1. Agnieszka Gruszecka-Kosowska, 2020. "Human Health Risk Assessment and Potentially Harmful Element Contents in the Cereals Cultivated on Agricultural Soils," IJERPH, MDPI, vol. 17(5), pages 1-26, March.
    2. Golden Zyambo & John Yabe & Kaampwe Muzandu & Ethel M’kandawire & Kennedy Choongo & Andrew Kataba & Kenneth Chawinga & Allan Liazambi & Shouta M. M Nakayama & Hokuto Nakata & Mayumi Ishizuka, 2022. "Human Health Risk Assessment from Lead Exposure through Consumption of Raw Cow Milk from Free-Range Cattle Reared in the Vicinity of a Lead–Zinc Mine in Kabwe," IJERPH, MDPI, vol. 19(8), pages 1-16, April.
    3. Agnieszka Gruszecka-Kosowska, 2019. "Human Health Risk Assessment and Potentially Harmful Element Contents in the Fruits Cultivated in the Southern Poland," IJERPH, MDPI, vol. 16(24), pages 1-24, December.
    4. Agnieszka Gruszecka-Kosowska, 2019. "Potentially Harmful Element Concentrations in the Vegetables Cultivated on Arable Soils, with Human Health-Risk Implications," IJERPH, MDPI, vol. 16(20), pages 1-25, October.

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