4.7 Article

Current permissible levels of metal pollutants harm terrestrial invertebrates

期刊

SCIENCE OF THE TOTAL ENVIRONMENT
卷 779, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.scitotenv.2021.146398

关键词

Heavy metals; Metalloids; Invertebrate decline; International guidelines; Environmental pollution

资金

  1. CNRS
  2. French Ministry of Higher Education, Research and Innovation
  3. Australian Research Council [FT140100452]
  4. Eldon and Anne Foote Trust
  5. Agence Nationale de la Recherche [ANR16CE02000201, ANR19CE370024, ANR-20-ERC8-0004-01]
  6. European Regional Development Fund (project ECONECT)
  7. Australian Research Council [FT140100452] Funding Source: Australian Research Council

向作者/读者索取更多资源

The declining population of invertebrates globally is concerning, with the impacts of metal pollutants on terrestrial invertebrates being underestimated. There is a need to revise regulatory thresholds to better protect these animals.
The current decline of invertebrates worldwide is alarming. Several potential causes have been proposed but metal pollutants, while being widespread in the air, soils and water, have so far been largely overlooked. Here, we reviewed the results of 527 observations of the effects of arsenic, cadmium, lead and mercury on terrestrial invertebrates. These four well-studied metals are considered as priorities for public health and for which international regulatory guidelines exist. We found that they all significantly impact the physiology and behavior of invertebrates, even at levels below those recommended as 'safe' for humans. Our results call for a revision of the regulatory thresholds to better protect terrestrial invertebrates, which appear to be more sensitive to metal pollution than vertebrates. More fundamental research on a broader range of compounds and species is needed to improve international guidelines for metal pollutants, and to develop conservation plans to protect invertebrates and ecosystem services. (c) 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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