Influences of multiwalled carbon nanotubes and plant residue chars on bioaccumulation of polycyclic aromatic hydrocarbons by Chironomus plumosus larvae in sediment
Shen, M; Xia, X; Wang, F; Zhang, P; Zhao, X
HERO ID
955028
Reference Type
Journal Article
Year
2012
Language
English
PMID
| HERO ID | 955028 |
|---|---|
| In Press | No |
| Year | 2012 |
| Title | Influences of multiwalled carbon nanotubes and plant residue chars on bioaccumulation of polycyclic aromatic hydrocarbons by Chironomus plumosus larvae in sediment |
| Authors | Shen, M; Xia, X; Wang, F; Zhang, P; Zhao, X |
| Journal | Environmental Toxicology and Chemistry |
| Volume | 31 |
| Issue | 1 |
| Page Numbers | 202-209 |
| Abstract | Carbonaceous materials (CMs), including carbon nanotubes (CNTs), and black carbon have been suggested as potential remediation materials for hydrophobic organic contaminants (HOCs) in sediments or soils. However, the concentration-dependent and potential effects of CMs on the decrease in HOC bioavailability are not well understood. In this research, the effects of two types of multiwalled CNTs (MWNT-1 and MWNT-2) and chars (char-stalk produced from stalk and char-wood from wood) on the bioaccumulation of polycyclic aromatic hydrocarbons (PAHs), including phenanthrene, pyrene, and chrysene, in the benthic organism Chironomus plumosus larvae were studied. When CM content was 1.5% or less in sediments, biota-sediment accumulation factor (BSAF) values for PAHs decreased sharply as CM increased. However, when char and MWNT-1 content was greater than 1.5% in sediments, reduction rates of BSAF were slight. Furthermore, when MWNT-2 content was greater than 1.5%, BSAF values were elevated. This indicated that the MWNT-associated PAHs may have been absorbed by larvae through particle ingestion, and suggested that some CNTs may not be suitable for the remediation of HOC-contaminated sediments because they probably could increase the exposure risk of PAHs to benthic organisms, possibly because of their unique structure. Environ. Toxicol. Chem. 2012;31:202-209. © 2011 SETAC. |
| Doi | 10.1002/etc.722 |
| Pmid | 22020988 |
| Wosid | WOS:000297930700024 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Scopus URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84856502458&doi=10.1002%2fetc.722&partnerID=40&md5=45c3939292a678d939631aa594a94a15 |
| Is Public | Yes |
| Language Text | English |
| Keyword | Carbon nanotubes; Black carbon; Bioaccumulation; Chironomus plumosus larvae; Polycyclic aromatic hydrocarbons |
| Is Qa | No |