Trophic level

营养水平
  • 文章类型: Journal Article
    大多数关于微塑料(MPs)和生物体的研究,无论国会议员的类型及其在环境和生物中的存在,已经在实验室规模进行了。在这次审查中,收集了同时分析自然环境中水生生物中MPs和有机/无机污染物丰度的报告,并进行了文献计量分析。讨论了影响生物体吸收MPs的生物和环境因素。大多数微塑料被鉴定为具有小尺寸(<500μm)的纤维状和黑色。据报道,某些物种组织中的微塑料数量与有机/无机污染物之间存在正相关。据报道,来自Mannar湾的Heniochusacuminatus的重金属与MPs之间存在最正的线性关系。为了保护生物多样性以及将MP和污染物转移给水生生物和人类的风险,有必要控制微塑料污染。
    Most studies on microplastics (MPs) and organisms, regardless of the MPs type and their presence in the environment and organisms, have been performed on a laboratory scale. In this review, reports of simultaneous analysis of the abundance of MPs and organic/inorganic contaminants in aquatic organisms in the natural environment have been collected and bibliometric analysis was performed. Biological and environmental factors affecting MPs absorption by organisms were discussed. The majority of microplastics were identified as fibrous and black with a small size (<500 μm). A positive correlation was reported between microplastic numbers and organic/inorganic contaminants in the tissue of some species. The most positive linear relationship between heavy metal and MPs was reported for Heniochus acuminatus from the Gulf of Mannar. To preserve biodiversity and the risks of transferring MPs and contaminants to aquatic organisms and humans, it is necessary to control microplastic contamination.
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  • 文章类型: Journal Article
    The growing production of cosmetic products such as organic UV filters (OUVFs) in recent years has raised concern regarding their safety to human and environmental health. The inability of wastewater treatment plants in removing these chemical entities and their high octanol-water partition coefficient values tend to result in the persistence of OUVFs in several environmental matrices, leading these to be categorized as \"emerging environmental contaminants\" because of their unknown risk. Besides aquatic ecosystem contamination, the application of sludge disposal equally threatens terrestrial biota. Besides, the available reviews focusing on levels of OUVFs in aqueous systems (freshwater and marine), instrumental analysis from various samples, and specific toxicity effects, compiled information on the ecotoxicity of OUVFs is currently lacking. Hence, the present manuscript systematically reviews the ecotoxicity of OUVFs in freshwater and marine organisms occupying lower to higher trophic levels, including the underlying mechanisms of action and current knowledge gaps. The available scientific evidence suggests that OUVFs are a prime candidate for environmental concern due to their potential toxic effects. To the best of our knowledge, this is the first document detailing the toxicological effects of OUVFs in aquatic organisms.
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