Toxicity, bioaccumulation and biomagnification of silver nanoparticles in green algae (Chlorellasp.), water flea (Moina macrocopa), blood worm (Chironomusspp.) and silver barb (Barbonymus gonionotus)

Autor:	Ratcha Chaichana, T. Satapanajaru, Maneekarn Yoo-iam
Rok vydání:	2014
Předmět:	Chemical Health and Safety biology Health Toxicology and Mutagenesis Biomagnification Bioconcentration Toxicology biology.organism_classification Silver nanoparticle Chlorella Bioaccumulation Botany Toxicity Green algae Chironomus Food science
Zdroj:	Chemical Speciation & Bioavailability. 26:257-265
ISSN:	2047-6523 0954-2299
DOI:	10.3184/095422914x14144332205573
Popis:	The toxicity, bioaccumulation and biomagnification of material containing silver nanoparticles were studied in a model food chain. Two forms of silver namely, Ag+ and nano Ag° particles (AgNPs) were examined for their toxicity effects on Chlorella sp., Moina macrocopa, Barbonymus gonionotus and Chironomus spp. The results showed that the toxicity order on the four organisms was free Ag+> AgNPs. For toxicity of Ag+, the EC5° (effective concentration) was 0.39±0.32 mg L-1 for Chlorella sp. and the LC5° (lethal concentration) of M. macrocopa, B. gonionotus and Chironomus spp. were 0.026±0.43 mg L-1, 0.057±1.15 mg L-1, and 0.042±0.19 mg L-1, respectively. For toxicity, the EC5° of AgNPs was 0.89±0.68 mg L-1 for Chlorella sp. and the LC5° of M. macrocopa, B. gonionotusand Chironomus spp. were 1.11±0.86 mg L-1, 1.76±0.19 mg L-1, and 1.08±1.21 mg L-1, respectively. The results of the bioaccumulation study indicated that the highest bioaccumulation factor (BAF) of Ag+ was 101.84 L g-1 in Chlorella sp. and...
Databáze:	OpenAIRE
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