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Sentinel animals for monitoring the environmental lead exposure: combination of traditional review and visualization analysis

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Abstract

In nature, certain animals share a common living environment with humans, thus these animals have become biomonitors of health effects related to various environmental exposures. As one of the most toxic environmental chemicals, lead (Pb) can cause detriment health effects to animals, plants, and even humans through different exposure pathways such as atmosphere, soil, food, water, and dust, etc. Sentinel animals played an “indicative” role in the researches of environmental pollution monitoring and human health. In order to comprehend the usage of sentinel animals in the indication of environmental Pb pollution and human Pb exposure completely, a combination of traditional review and visualization analysis based on CiteSpace literature was used to review earlier researches in this study. In the first instance, present researches on exposure sources and exposure pathways of Pb were summarized briefly, and then the studies using sentinel animals to monitor environmental heavy metal pollution and human health were combed. Finally, visualization software CiteSpace 5.8.R3 was used to explore and analyze the hotspots and frontiers of lead exposure and sentinel animals researches at home and abroad. The results showed that certain mammals were good indicators for human lead exposure. Sentinel animals had been widely used to monitor the ecological environment and human lead exposure. Among them, the blood lead levels of small mammals, particularly for domestic dogs and cats, had a significant correlation with the blood lead levels of human living in the same environment. It indicated that certain biological indicators in animals can be used as surrogates to monitor human body exposure to heavy metals. This study also explored the challenges and perspectives that may be faced in sentinel animal research, in order to provide a certain theoretical basis and train of thought guidance for future research.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (41803016); Fundamental Research Funds for the Central Universities, Grant/Award Number: FRF-TP-17-064A1, FRF-MP-20-09; and Key Research and Development project of Gansu Province (20YF8WA026).

Funding

National Natural Science Foundation of China, Grant/Award Number: 41803016; Fundamental Research Funds for the Central Universities, Grant/Award Number: FRF-TP-17-064A1,FRF-MP-20–09;and Key Research and Development project of Gansu Province (20YF8WA026).

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Correspondence to Xiaoli Duan.

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We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled: Sentinel animals for monitoring the environmental lead exposure: Combination of traditional review and visualization analysis.

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Chen, X., Cao, S., Wen, D. et al. Sentinel animals for monitoring the environmental lead exposure: combination of traditional review and visualization analysis. Environ Geochem Health 45, 561–584 (2023). https://doi.org/10.1007/s10653-022-01241-9

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  • DOI: https://doi.org/10.1007/s10653-022-01241-9

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