ORIGINAL RESEARCH
Characteristics of Cd Contents in Vegetables
Around an Abandoned Aluminum Factory
and the Potential Health Risks
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1
School of Public Health, the key Laboratory of Environmental Pollution Monitoring and Disease Control,
Ministry of Education, Guizhou Medical University, Guiyang 550025, China
2
Toxicity Testing Center of Guizhou Medical University, Guiyang 550025, China
3
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry,
Chinese Academy of Sciences, Guiyang 550081, China
4
School of Geography and Environmental Science, Guizhou Normal University, Guiyang 550001, China
Submission date: 2021-09-13
Final revision date: 2021-11-21
Acceptance date: 2021-12-21
Online publication date: 2022-05-05
Publication date: 2022-06-20
Corresponding author
Yizhang Liu
State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, China
Pol. J. Environ. Stud. 2022;31(4):3403-3414
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ABSTRACT
Wastes and dust discharged from aluminum factory generally result in soil contamination
and may cause enrichment of Cadmium (Cd) in local crops. However, the pattern of Cd enrichment
in the vegetables by contaminated soil of aluminum factory and their health risk are unclear. In this
study, a total of 12 species of vegetables including 163 samples were collected around an abandoned
aluminum factory. The results showed that 21% of the leafy vegetables with Cd exceeding Food Safety
Standard Limit of China. The Cd in vegetables collected from different distances of four directions
from the abandoned aluminum factory had no significant differences (p>0.05). Our results indicate
that the highest hazard quotient (HQ) and carcinogenic risk of Cd in vegetables are 1 km and 7-10 km
away from abandoned aluminum factory respectively. The HQ values of Cd in vegetables for children
and adults are within the safe range, however CR values of Cd in vegetables for both children and
adults are higher than the acceptable limit of USEPA (10-6), suggesting potential health risks. The health
risks for children aged 2-6 years old are higher than aged 7-17 years old and adults due to the less
amount of vegetable intake by children. The intake risks of Cd in different vegetables are spinach>green
vegetables>red leafy vegetables>cabbage>radish leafy>stem vegetables>sweet potato leaves>pumpkin
leaves>beans.