Soil heavy metal pollution of industrial legacies in China and health risk assessment

Jiao, Peng; Zhang, Shuai; Han, Yingyue; Bate, Bate; Han, Ke; Chen, Yunmin

doi:10.1016/j.scitotenv.2021.151632

Cited by 148 publications

(41 citation statements)

References 18 publications

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“…Soil pollution has become a prominent environmental issue in China due to the excessive use of chemical fertilizers in agricultural activities [ 9 , 10 ] and air pollution from industrial emissions and vehicle exhaust [ 11 ]. Heavy metals in surface soil, such as cadmium (Cd), arsenic (As), lead (Pb), iron (Fe), copper (Cu), and zinc (Zn), can cause soil pollution [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of cadmium contamination on bacterial and fungal communities in Panax ginseng-growing soil

Sun

Jin

et al. 2022

BMC Microbiol

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Background Cadmium (Cd) contamination in soil poses a serious safety risk for the development of medicine and food with ginseng as the raw material. Microorganisms are key players in the functioning and service of soil ecosystems, but the effects of Cd-contaminated ginseng growth on these microorganisms is still poorly understood. To study this hypothesis, we evaluated the effects of microorganisms and Cd (0, 0.25, 0.5, 1.0, 2.0, 5.0, and 10.0 mg kg-1 of Cd) exposure on the soil microbial community using Illumina HiSeq high-throughput sequencing. Results Our results indicated that Cd-contaminated soil affected the soil microbial diversity and composition, and bacterial diversity was affected more than fungal diversity in Cd-contaminated soil, especially according to Shannon indices. The abundance of the soil microbial community decreased and the composition changed according to the relative abundances at the phylum level, including those of Saccharibacteria and Gemmatimonadetes in bacteria and Mortierellomycota in fungi. The LEfSe algorithm was used to identify active biomarkers, and 45 differentially abundant bacterial taxonomic clades and 16 differentially abundant fungal taxonomic clades were identified with LDA scores higher than 4.0. Finally, a heatmap of Spearman's rank correlation coefficients and canonical discriminant analysis (CDA) indicated that some key biomarkers, Arenimonas, Xanthomonadales, Nitrosomonadaceae, Methylophilales, Caulobacterales, Aeromicrobium, Chitinophagaceae, Acidimicrobiales, Nocardioidaceae, Propionibacteriales, Frankiales, and Gemmatimonadaceae, were positively correlated with the total and available Cd (p<0.05) but negatively correlated with AK, AP, and pH (p<0.05) in the bacterial community. Similarly, in the fungal community, Tubaria, Mortierellaceae, and Rhizophagus were positively correlated with the total and available Cd but negatively correlated with AK, AP, TK, and pH. Conclusion Cd contamination significantly affected microbial diversity and composition in ginseng-growing soil. Our findings provide new insight into the effects of Cd contamination on the microbial communities in ginseng-growing soil.

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Section: Introductionmentioning

confidence: 99%

Effects of cadmium contamination on bacterial and fungal communities in Panax ginseng-growing soil

Sun

Jin

et al. 2022

BMC Microbiol

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“…It can provide quantitative information on relevant metal ions and analyze the possible sources of various metal ions. PCA has been widely used to study the sources of pollutants in rivers and sediments around the world (Loska and Wiechula, 2003;Peng et al, 2022). In this study, SPSS (26.0) was used for principal component analysis and the possible sources of metals were analyzed.…”

Section: Source Analysismentioning

confidence: 99%

Spatial distribution, sources, and risk assessment of metal ions in sediments from industrial areas in the Kuye River Basin in Shenmu, China

Wang

Liu

Wei

et al. 2022

Preprint

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Metal pollution of river sediments in industrial areas has attracted widespread attention. In this study, 11 metal ions (including Fe, Al, Ag, Mn, Cd, Cr, As, Cu, Pb, Zn, Ni) were determined and analyzed in river sediments of typical industrial areas in the Kuye River Basin, a first-level tributary of the Yellow River. The geological accumulation index, enrichment factor, and pollution load index indicated that the metal ions in this area were enriched and polluted to different degrees. The spatial distribution of the 8 kinds of heavy metals showed that the content in the upstream and downstream was higher, and the middle reaches were lower. the heavy metals mainly came from local industrial activities, coal mining and transportation, and soil weathering, Human activities were the main reasons for the dramatic spatial changes and high levels of heavy metals. The results of the combined potential ecological risk index and sediment quality guidelines showed that the ecological risk downstream of the area was high, and Ni and Pb have caused adverse biological reactions. The human carcinogenic risk assessment result showed that the non-carcinogenic hazard quotient of metal ions in the study area was at an acceptable level, but the carcinogenic risk level of Ni and Cr was higher than 10-4, which was an unacceptable level and must be got enough recognition. The results of this study can provide theoretical support for the pollution control and environmental restoration of rivers in energy-enriched areas.

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“…With the rapid development of economy and industrialization, environmental heavy metal pollution is becoming more and more prominent. A large number of heavy metals are released into the ecosystem, causing pollution and economic losses in agriculture, husbandry, and aquaculture (Liu et al 2018;Peng et al 2022). With the increasing concern for food safety in China, a large number of studies on monitoring Cd concentrations in food have been published.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Cadmium Concentrations in Foodstuffs and Dietary Exposure Risk Across China: A Metadata Analysis

Qing

Cai

et al. 2023

Expo Health

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Cadmium (Cd) is a persistent and toxic heavy metal widely present in the environment and can cause damage to a variety of human organs and systems. Based on published studies from 2000 to 2021, this study established a comprehensive database of Cd concentrations in Chinese foods, and described the spatial and temporal trends of Cd concentrations in foods across China. The average Cd concentration in total foodstuff was 0.078 mg/kg, with edible fungi and algae having the highest concentrations, followed by aquatic foods, nuts, cereals, beans, vegetables, meats, eggs, milk, and fruits. The average dietary Cd exposure of Chinese residents was 34.3 μg/day (varying from 22.6 to 54.5 μg/day across regions), with the highest exposures in South China. Cereals (46.2%), vegetables (19.2%), and aquatic food (18.4%) contributed the most to the dietary Cd exposure of Chinese residents. According to Monte Carlo simulations of the risk assessment of dietary exposure to Cd, approximately, 15.4% of the Chinese population exceeded the Joint FAO/WHO Expert Committee on Food Additives health-based guidance value. The hazard quotient and excess lifetime cancer risk indices of dietary Cd exposure indicated that the Chinese residents would not be at significant non-cancer and carcinogenic risk. In summary, this study obtained comprehensive and reliable results on Cd concentrations in Chinese food and dietary Cd exposure risk of Chinese residents, which can provide a data base for the development of dietary Cd exposure limits in China.

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Soil heavy metal pollution of industrial legacies in China and health risk assessment

Cited by 148 publications

References 18 publications

Effects of cadmium contamination on bacterial and fungal communities in Panax ginseng-growing soil

Effects of cadmium contamination on bacterial and fungal communities in Panax ginseng-growing soil

Spatial distribution, sources, and risk assessment of metal ions in sediments from industrial areas in the Kuye River Basin in Shenmu, China

Assessment of Cadmium Concentrations in Foodstuffs and Dietary Exposure Risk Across China: A Metadata Analysis

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