发布者:抗性基因网 时间:2023-06-07 浏览量:213
摘要
微塑料是一种尺寸小于5毫米的塑料颗粒,由于其对生态和人类健康的影响,引起了人们的担忧。它们主要通过倾倒塑料垃圾和处理厂废水、生活污水、农业径流和工业来源释放到环境中。传统的污水处理厂无法去除微米和纳米尺寸的塑料颗粒,这些塑料颗粒最终会进入自然的水生和陆地环境,造成多方面的毒性影响。此外,废水中的塑料产生的生物膜可能会富集抗生素抗性细菌(ARBs)、抗生素抗性基因(ARGs)和细菌病原体,这会在很大程度上影响环境中生物体的抗生素抗性发展,并通过食物链转移给人类。因此,目前的综述旨在强调废水塑性圈通过环境中的移动遗传元件(MGE)在ARBs、ARGs和潜在细菌病原体的富集和传播中的潜在作用。此外,还介绍了废水MP与有机和无机污染物的相互作用以及相关的生态和人类健康影响。最后但并非最不重要的是,还强调了废水塑性圈的控制策略和未来的研究前景。
Abstract
Microplastics (MPs) are plastic particles with a size <5 mm that have raised alarming concerns owing to their ecological and human health impacts. They are largely released into the environment through the dumping of plastic waste and wastewater from treatment plants, domestic sewage, agricultural runoff, and industrial sources. Conventional wastewater treatment plants (WWTPs) are unable to remove micro and nano-sized plastic particles, which end up in the natural aquatic and terrestrial environment, causing multifaceted toxic impacts. Moreover, plastics in wastewater generate biofilm that potentially enriches antibiotic resistant bacteria (ARBs), antibiotic resistant genes (ARGs), and bacterial pathogens, which can largely impact antibiotic resistance development among organisms in the environment and transfer to humans through the food chain. Therefore, the current review aims to highlight the potential role of wastewater plastisphere in the enrichment and dissemination of ARBs, ARGs, and potential bacterial pathogens through mobile genetic elements (MGEs) in the environment. Further, the interaction of wastewater MPs with organic and inorganic contaminants and the associated ecological and human health impacts have been presented. Last but not the least, control strategies and future research perspectives on wastewater plastisphere are also highlighted.
https://www.sciencedirect.com/science/article/abs/pii/S004896972203902X