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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 Sign in to save

Distribution characteristics and ecological risk analysis of microplastics in sediments and effluents related to offshore oil and gas activities in the Bohai Sea, China

Marine Pollution Bulletin 2024 4 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Yuxia Li, Lingna Kong, Lingna Kong, Z. X. Li, Qing Su, Ling Qu, Ling Qu, Xiaomeng Wang, Jianbo Han, Jiayi Cheng, Liang Wu, Naidong Zhang

Summary

Researchers analyzed the distribution and size characteristics of microplastics in sediments at multiple sites, using ecological risk indices to assess whether plastic concentrations pose hazards to benthic communities in the study area.

Study Type Environmental

Oil and gas activities are sources of marine microplastics (MPs) but have received less attention globally. This study assessed the distribution characteristics and ecological risks of MPs in 31 sediment samples and effluent samples of 5 oil and gas platforms related to offshore oil and gas activities in the Bohai Sea. The results showed that the mean abundance of MPs in sediment, produced water, and domestic sewage was 205.7 ± 151.5 items/kg d.w., 18 ± 11 items/L, and 26 ± 39 items/L, respectively. The MPs in sediments and effluents were dominated by transparent, rayon, and fibers <1 mm. Oil and gas activities may influence the abundance of MPs in the sediments. The sediments in the area were at a low level of risk, but some samples exhibited indexes beyond low levels. The mass of MPs carried by the effluents from oil and gas platforms in the Bohai Sea was less than that of other sources.

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