Back to Search Start Over

Confirmation of combinational effects of calcium with other metals in a paper recycling mill effluent on nematode lifespan with toxicity identification evaluation method.

Authors :
Wang D
Wang Y
Shen L
Source :
Journal of environmental sciences (China) [J Environ Sci (China)] 2010; Vol. 22 (5), pp. 731-7.
Publication Year :
2010

Abstract

We used toxicity identification evaluation (TIE) method to confirm the combinational effects of identified toxic metals in a paper recycling mill effluent in inducing the decreased lifespan in nematode Caenorhabditis elegans. Exposure to Ca + Al caused more severely decreased lifespan than that exposed to Ca, or Al; and exposure to Ca + Fe induced more severely decreased lifespan than that exposed to Ca, or Fe. Exposure to Ca+Al+Fe caused more severely decreased lifespan than that exposed to Ca, or Ca+Fe. Moreover, the baseline toxicity on lifespan was doubled by doubling the concentration of combined metals (Ca+Al+Fe) in spiking test in original effluent (oe), and lifespan defects in oe+Ca+Al+Fe exposed nematodes were more severe than that in Ca+Al+Fe exposed nematode. Therefore, Ca+Al+Fe exposure may largely explain the formation of decreased lifespan induced by the examined industrial effluent. Furthermore, the observed reduction of lifespan induced by the combination of high level of Ca with other metals may be at least partially independent of the insulin-like pathway.

Details

Language :
English
ISSN :
1001-0742
Volume :
22
Issue :
5
Database :
MEDLINE
Journal :
Journal of environmental sciences (China)
Publication Type :
Academic Journal
Accession number :
20608510
Full Text :
https://doi.org/10.1016/s1001-0742(09)60170-4