垃圾填埋场作为微塑料热点:印度东部城市、郊区和农村地区的比较调查及相关风险评估。

IF 3.6 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
Mamun Mandal, Anamika Roy, Sneha Kumari Binha, Robert Popek, Arkadiusz Przybysz, Piotr Koczoń, Dinesh Prasad, Abhijit Sarkar
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引用次数: 0

摘要

微塑料污染最近引起了全世界的广泛关注,因为它们倾向于污染生态系统并在食物链中传播有毒物质,危害人类健康。本研究的主要目标是提供对2022年和2023年东印度倾倒场中MPs的来源、发生、检测和潜在生态风险的一定程度的了解,并代表一个包括城市、郊区和农村地区的情景。倾倒场的多磺酸粘多糖浓度在10 ~ 3457多磺酸粘多糖mg/kg之间。在2022年和2023年的样本中,碎片是主要的形状,分别为32%和36%。在这两年,白色都是国会议员的主要颜色(2022年为34%,2023年为45%),其次是灰色、蓝色、绿色和其他颜色。根据化学分析,最常见的聚合物是聚乙烯(20%)、尼龙(15.5%)、聚对苯二甲酸乙二醇酯(11.62%)和聚丙烯(10.28%)。由于存在PVC、PU等高危聚合物,研究区域大部分存在较高的聚合物危害指数(PHI)值(bbb1000)。根据聚合物负荷指数(PLI)值,来自English Bazar和河边垃圾场的样品受MPs污染程度较高(PLI为26 ~ 49),而来自Manikchak和Old Malda的样品污染程度较低(PLI均为1)。河流边的生态风险指数(ERI)最高,为318950。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Waste Dumps as Microplastic Hotspots: A Comparative Investigation at Urban, Suburban, and Rural Areas of Eastern India and Associated Risk Assessment.

Microplastics (MPs) pollution has recently garnered substantial attention worldwide due to their tendency to contaminate ecosystems and transmit toxic substances in the food chain, compromising human health. The primary goal of this study is to provide a level of understanding about the source, occurrence, detection, and potential ecological risk of MPs in Eastern Indian dumping sites in the years 2022 and 2023 as well as representing a scenario encompassing urban, suburban, and rural areas. The MPs concentrations in dumping sites ranged between 10 and 3457 MPs mg/kg. Fragments were the predominant shape in samples from both years, 32% and 36% in 2022 and 2023, respectively. White was the leading color of MPs in both years (34% in 2022, 45% in 2023), followed by grey, blue, green, and others. Based on the chemical analysis, the most common polymers discovered were polyethylene (20%), nylon (15.5%), polyethylene terephthalate (11.62%), and polypropylene (10.28%). Most of the study area has high polymer hazard index (PHI) values (>1000) due to the presence of high-hazard polymers like PVC and PU. According to polymer load index (PLI) values, the samples from English Bazar and river-side dumps are highly contaminated with MPs (PLI: 26 to 49), whereas samples from Manikchak and Old Malda are less contaminated (PLI: 1 for both). The ecological risk index (ERI) values of river-side samples were the highest (ERI: 318950).

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来源期刊
CiteScore
7.40
自引率
9.80%
发文量
265
审稿时长
3.4 months
期刊介绍: The Society of Environmental Toxicology and Chemistry (SETAC) publishes two journals: Environmental Toxicology and Chemistry (ET&C) and Integrated Environmental Assessment and Management (IEAM). Environmental Toxicology and Chemistry is dedicated to furthering scientific knowledge and disseminating information on environmental toxicology and chemistry, including the application of these sciences to risk assessment.[...] Environmental Toxicology and Chemistry is interdisciplinary in scope and integrates the fields of environmental toxicology; environmental, analytical, and molecular chemistry; ecology; physiology; biochemistry; microbiology; genetics; genomics; environmental engineering; chemical, environmental, and biological modeling; epidemiology; and earth sciences. ET&C seeks to publish papers describing original experimental or theoretical work that significantly advances understanding in the area of environmental toxicology, environmental chemistry and hazard/risk assessment. Emphasis is given to papers that enhance capabilities for the prediction, measurement, and assessment of the fate and effects of chemicals in the environment, rather than simply providing additional data. The scientific impact of papers is judged in terms of the breadth and depth of the findings and the expected influence on existing or future scientific practice. Methodological papers must make clear not only how the work differs from existing practice, but the significance of these differences to the field. Site-based research or monitoring must have regional or global implications beyond the particular site, such as evaluating processes, mechanisms, or theory under a natural environmental setting.
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