Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Environmental Sources Marine & Wildlife Policy & Risk Sign in to save

Effects of microplastics on sedimentary geochemical properties and microbial ecosystems combined with hydraulic disturbance

The Science of The Total Environment 2024 23 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Wenjuan He, Wenjuan He, Wenjuan He, Wenjuan He, Si Liu, Si Liu, Si Liu, Wenjuan He, Wenjuan He, Wenjuan He, Kaixin Yi, Wenjuan He, Wenjuan He, Si Liu, Wenjuan He, Wenjuan He, Jinhui Huang, Jinhui Huang, Xiaofei Tan, Xiaofei Tan, Jinhui Huang, Jinhui Huang, Jinhui Huang, Si Liu, Wenjuan He, Jinhui Huang, Jinhui Huang, Wenjuan He, Xiaofei Tan, Wenjuan He, Wenjuan He, Wenjuan He, Wenjuan He, Si Liu, Si Liu, Xiaofei Tan, Wenjuan He, Wenjuan He, Wenjuan He, Xiaofei Tan, Wenjuan He, Wenjuan He, Hanbo Yu, Kaixin Yi, Enjie Li, Wenjuan He, Wenjuan He, Chenyu Zhang Kaixin Yi, Haoliang Pang, Kaixin Yi, Enjie Li, Enjie Li, Jinhui Huang, Kaixin Yi, Enjie Li, Enjie Li, Haoliang Pang, Haoliang Pang, Enjie Li, Enjie Li, Hanbo Yu, Wei Zhang, Kaixin Yi, Haoliang Pang, Xiaofei Tan, Xiaofei Tan, Haoliang Pang, Chenyu Zhang Jinhui Huang, Haoliang Pang, Chenyu Zhang Haoliang Pang, Hanbo Yu, Xiaofei Tan, Haoliang Pang, Haoliang Pang, Haoliang Pang, Haoliang Pang, Wenjuan He, Xiaofei Tan, Wenjuan He, Xiaofei Tan, Xiaofei Tan, Enjie Li, Kaixin Yi, Haoliang Pang, Chenyu Zhang

Summary

Researchers investigated how microplastics interact with river sediments under flowing water conditions versus still water. They found that water movement significantly amplified the effects of microplastics on sediment structure, organic matter, and enzyme activity compared to static conditions. The study reveals that the environmental impact of microplastics in rivers is more complex and potentially greater than laboratory experiments under calm conditions would suggest.

Study Type Environmental

Microplastics (MPs) pollution is widely investigated owing to its potential threats to river ecosystems. However, it remains unclear whether hydraulic disturbance deepens or mitigates the effects of MPs-contaminated sediments on the river environment. Herein, we studied the impact of sediment aggregates, organic matter, and enzyme activity, with emphasis on microbial community structure and function in sediments exposed to MPs (1 %, 5 %, and 10 % w/w) in conjunction with hydraulic disturbance. The experimental results showed that the influence of MPs on the sediment under hydraulic disturbance is more significant than that of static culture, especially for various environmental factors (MWD, MBC, and sucrase activity etc.). The proportions of the >0.05 mm-fraction aggregates increased from 74-76 % to 82-88 % in the sediment throughout the entire disturbance process. It has been found that the disturbance generally promotes the interaction between MPs and sediments. FAPROTAX analysis demonstrated that the disturbance reduced the difference in effects on microbial functional genes between the control group and the MPs-added groups by up to 10 times, suggesting that the effects of disturbance on MPs-contaminated sediments are relatively complex. This work provides new insights into the effects of hydraulic disturbance on physicochemical properties and microbial communities of MPs-contaminated sediment.

Read via DOI PubMed

Share this paper

Post Share Share Pin Email