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Biophysical Characteristics

The potential risk assessment for different arsenic species in the aquatic environment


The different toxicity characteristics of arsenic species result in discrepant ecological risk. The predicted no-effect concentrations (PNECs) 43.65, 250.18, and 2.00 × 103 μg/L were calculated for As(III), As(V), and dimethylarsinic acid in aqueous phase, respectively. With these PNECs, the ecological risk from arsenic species in Pearl River Delta in China and Kwabrafo stream in Ghana was evaluated. It was found that the risk from As(III) and As(V) in the samples from Pearl River Delta was low, while much high in Kwabrafo stream. This study implies that ecological risk of arsenic should be evaluated basing on its species.

 

Read full paper https://doi.org/10.1016/j.jes.2014.03.006

Name of Author(s):
Meng Du, Dongbin Wei, Zhuowei Tan, Aiwu Lin, Yuguo Du,
Institutional Affiliation:
Type of Publication:
Journal Article
Name of Publisher or Journal:
Journal of Environmental Sciences
Date of Publication:
2015
Number of Pages:
8