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- Rämö, Robert A.Stockholms universitet,Institutionen för ekologi, miljö och botanik (author)
Biological Effects of Activated Carbon on Benthic Macroinvertebrates are Determined by Particle Size and Ingestibility of Activated Carbon
- Article/chapterEnglish2021
Publisher, publication year, extent ...
- 2021-11-08
- Wiley,2021
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:su-200105
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-200105URI
- https://doi.org/10.1002/etc.5231DOI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- The application of activated carbon (AC) to the surface of contaminated sediments is a promising technology for sediment remediation in situ. Amendment with AC has proved to be effective in reducing bioavailability and sediment-to-water release of hydrophobic organic contaminants. However, AC may cause positive or negative biological responses in benthic organisms. The causes of these effects, which include changes in growth, reproduction, and mortality, are unclear but are thought to be related to the size of AC particles. The present study investigated biological response to AC ranging from ingestible powdered AC to noningestible granular AC in two benthic deposit feeders: the polychaete Marenzelleria spp. and the clam Limecola balthica (syn. Macoma balthica). In the polychaete, exposure to powdered AC (ingestible) reduced both dry weight and carbon assimilation, whereas exposure to granular AC (noningestible) increased both dry weight and carbon assimilation. Responses in the clam were similar but less pronounced, indicating that response levels are species-specific and may vary within a benthic community. In addition, worms exposed to the finest ingestible AC particles had reduced gut microvilli length and reduced gut lumen, indicating starvation. These results strongly suggest that biological responses to AC depend on particle ingestibility, whereby exposure to ingestible particles may cause starvation through reduced bioavailability of food coingested with AC or due to rejection of AC-treated sediment as a food source.
Subject headings and genre
- NATURVETENSKAP Geovetenskap och miljövetenskap hsv//swe
- NATURAL SCIENCES Earth and Related Environmental Sciences hsv//eng
- Benthic macroinvertebrates
- Ecotoxicology
- Sediment quality
- Sediment remediation
- Thin-layer capping
- Activated carbon
Added entries (persons, corporate bodies, meetings, titles ...)
- Honkanen, JohannaStockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)joho8751 (author)
- Nybom, InnaStockholms universitet,Institutionen för miljövetenskap(Swepub:su)inybl (author)
- Gunnarsson, Jonas S.Stockholms universitet,Institutionen för ekologi, miljö och botanik(Swepub:su)jgunn (author)
- Stockholms universitetInstitutionen för ekologi, miljö och botanik (creator_code:org_t)
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- In:Environmental Toxicology and Chemistry: Wiley40:12, s. 3465-34770730-72681552-8618
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