Microplastic pollution characteristics and ecological risk assessment in the Wuding River Basin, China

中国 污染 环境科学 构造盆地 生态学 地理 环境保护 水资源管理 地质学 生物 考古 地貌学
作者
Shun Wan,Guoce Xu,Ping Xiong,Hailiang Qiao,Xin Chen,Liuyang Gu,Haijing Xiong,Bin Wang,Fengyou Gu
出处
期刊:Environmental Pollution [Elsevier BV]
卷期号:356: 124228-124228 被引量:12
标识
DOI:10.1016/j.envpol.2024.124228
摘要

Microplastics (MPs), as a new type of environmental pollutant, have attracted extensive attention in recent years. However, there has been relatively little research specifically focusing on MPs in the Yellow River Basin, China, particularly regarding MP migration patterns. Based on surface water and sediment samples from 19 sampling sites in the Wuding River (WDR), the abundances and characteristic distributions of MPs were analyzed, and the environmental factors affecting their distribution and potential ecological risks were evaluated. The results showed that the MP abundances in surface water and sediments of the WDR were significantly different (P < 0.05), with mean values of 2.98 ± 0.69 items/L and 419.47 ± 75.61 items/kg, respectively. In terms of MP characteristics, the most common size class was 0.1-0.5 mm in surface water. Polyethylene (PE, 32.50%) and polypropylene (PP, 27.50%) were the main polymer types of MPs in surface water. Although similar MP characteristics were observed in sediments, there were significantly more particles in the <0.1 mm particle size (P < 0.05), which was 15.0% higher than in surface water. Also, more high-density MP fragments were observed in sediment samples. The retention of MPs in sediments was influenced by the MP characteristics (density, shape, particle size) and sediment particle size. In contrast, the MP abundance in surface water was more closely related to the presence of other environmental pollutants, such as total phosphorus (WTP) and ammonia nitrogen (WAN). Temperature (T), agricultural land (AGR), and residential land (RES) only had significant effects on the distribution of MPs in surface water (P < 0.05). Potential ecological risk assessments revealed that MP pollution in sediments was more serious than in surface water, especially in the middle and lower reaches. The results of this study are important for understanding MP transport in a sandy river and for eliminating potential sources of MPs.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
tc发布了新的文献求助10
刚刚
1秒前
陈小军关注了科研通微信公众号
1秒前
1秒前
归尘应助Bismarck采纳,获得10
2秒前
匹诺曹完成签到,获得积分10
2秒前
科研通AI5应助温柔的幻露采纳,获得10
3秒前
5秒前
6秒前
6秒前
6秒前
7秒前
lisa完成签到,获得积分10
8秒前
公孙世往发布了新的文献求助30
8秒前
9秒前
星辰大海应助Cici采纳,获得10
9秒前
hhh完成签到,获得积分10
10秒前
10秒前
7275XXX发布了新的文献求助10
10秒前
10秒前
libaojunok完成签到,获得积分20
10秒前
充电宝应助完美的火龙果采纳,获得10
12秒前
12秒前
12秒前
12秒前
123发布了新的文献求助10
14秒前
暖暖完成签到,获得积分10
15秒前
16秒前
18621058639完成签到,获得积分10
16秒前
pbj发布了新的文献求助10
17秒前
额我认为发布了新的文献求助10
17秒前
M27发布了新的文献求助10
17秒前
在水一方应助vvvaee采纳,获得10
18秒前
djf点儿完成签到 ,获得积分10
19秒前
20秒前
Hhl完成签到,获得积分10
21秒前
21秒前
爆米花应助好运采纳,获得10
22秒前
Lucas应助pbj采纳,获得10
22秒前
redchocobo发布了新的文献求助10
22秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
Toward a Combinatorial Approach for the Prediction of IgG Half-Life and Clearance 500
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3970008
求助须知:如何正确求助?哪些是违规求助? 3514711
关于积分的说明 11175563
捐赠科研通 3250077
什么是DOI,文献DOI怎么找? 1795198
邀请新用户注册赠送积分活动 875630
科研通“疑难数据库(出版商)”最低求助积分说明 804931