Accumulation and ecotoxicological risk of weathered polyethylene (wPE) microplastics on green mussel (Perna viridis)
| Autor: | Ramachandran Ramesh, G. Hariharan, R.S. Robin, R. Purvaja, I. Anandavelu |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Gill
Gills Microplastics Perna Health Toxicology and Mutagenesis media_common.quotation_subject 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences Ecotoxicology 01 natural sciences Environmental pollution Perna viridis Ingestion Animals Humans Chronic Toxicity GE1-350 Food science Chronic toxicity Ecosystem 0105 earth and related environmental sciences media_common 021110 strategic defence & security studies biology Chemistry Public Health Environmental and Occupational Health General Medicine Mussel Metabolism Biomarker biology.organism_classification Pollution Environmental sciences TD172-193.5 Seafood Polyethylene Reproduction Plastics Weathered polyethylene Water Pollutants Chemical |
| Zdroj: | Ecotoxicology and Environmental Safety, Vol 208, Iss, Pp 111765-(2021) |
| ISSN: | 1090-2414 |
| Popis: | Recent studies have shown that organisms including humans are exposed to microplastics directly or indirectly. The present study aims to examine the ingestion of these microplastics and the consequences of the same by studying the accumulation behavior of weathered Polyethylene (wPE) microplastics. The Perna viridis were exposed chronically to three different environmentally relevant concentrations of wPE for 30 days, followed by a one-week depuration phase. There was no mortality observed in the control and exposed groups, but the feeding rate was observed to have substantially decreased in the group exposed to higher concentration (3 μgL-1) of wPE. It was also observed that a higher number of wPE particles accumulated in the intestine of exposed organisms. Interestingly, the present study revealed the presence of the substantial number of wPE particles in exposed organisms, which may adversely affect the internal organs as well as growth and reproduction. This study perceived that accumulation is marginally influenced by size of wPE. Similarly, biomarker analysis showed that wPE exposure significantly altered both the metabolism and histology of the internal organs of the exposed organisms. Overall, the study confirmed that the intestine was the most sensitive organ followed by gills, adductor muscles, and foot tissue adding new insights into the adverse effects of wPE in the marine ecosystem. |
| Databáze: | OpenAIRE |
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