TY - JOUR
T1 - Identification of toxicity variations in a stream affected by industrial effluents using Daphnia magna and Ulva pertusa
AU - Yoo, Jisu
AU - Ahn, Byeongyong
AU - Oh, Jeong Ju
AU - Han, Taejun
AU - Kim, Woo Keun
AU - Kim, Sanghoon
AU - Jung, Jinho
N1 - Funding Information:
This study was supported by a National Institute of Environmental Research (NIER) grant funded by the Korea government , and by a National Research Foundation of Korea (NRF) grant funded by the Korea government ( 2012R1A1A2041989 ).
PY - 2013/9/15
Y1 - 2013/9/15
N2 - A comprehensive toxicity monitoring study from August to October 2011 using Daphnia magna and Ulva pertusa was conducted to identify the cause of toxicity in a stream receiving industrial effluents (IEs) from a textile and leather products manufacturing complex. Acute toxicity toward both species was observed consistently in IE, which influenced toxicity of downstream (DS) water. A toxicity identification evaluation (TIE) confirmed that both Cu and Zn were key toxicants in the IE, and that the calculated toxicity based on Cu and Zn concentrations well simulated the variation in the observed toxicity (r2=0.9216 and 0.7256 for D. magna and U. pertusa, respectively). In particular, U. pertusa was sensitive enough to detect acute toxicity in DS and was useful to identify Zn as a key toxicant. Activities of catalase, superoxide dismutase, glutathione peroxidase, glutathione S-transferase, and malondialdehyde were induced significantly in D. magna, although acute toxicity was not observed. In addition, higher levels of antioxidant enzymes were expressed in DS than upstream waters, likely due to the Cu and Zn from IE. Overall, TIE procedures with a battery of bioassays were effective for identifying the cause of lethal and sub-lethal toxicity in effluent and stream water.
AB - A comprehensive toxicity monitoring study from August to October 2011 using Daphnia magna and Ulva pertusa was conducted to identify the cause of toxicity in a stream receiving industrial effluents (IEs) from a textile and leather products manufacturing complex. Acute toxicity toward both species was observed consistently in IE, which influenced toxicity of downstream (DS) water. A toxicity identification evaluation (TIE) confirmed that both Cu and Zn were key toxicants in the IE, and that the calculated toxicity based on Cu and Zn concentrations well simulated the variation in the observed toxicity (r2=0.9216 and 0.7256 for D. magna and U. pertusa, respectively). In particular, U. pertusa was sensitive enough to detect acute toxicity in DS and was useful to identify Zn as a key toxicant. Activities of catalase, superoxide dismutase, glutathione peroxidase, glutathione S-transferase, and malondialdehyde were induced significantly in D. magna, although acute toxicity was not observed. In addition, higher levels of antioxidant enzymes were expressed in DS than upstream waters, likely due to the Cu and Zn from IE. Overall, TIE procedures with a battery of bioassays were effective for identifying the cause of lethal and sub-lethal toxicity in effluent and stream water.
KW - Acute toxicity
KW - Heavy metal
KW - Oxidative stress
KW - TIE
KW - WET
KW - Wastewater
UR - http://www.scopus.com/inward/record.url?scp=84880777852&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2013.07.006
DO - 10.1016/j.jhazmat.2013.07.006
M3 - Article
C2 - 23892313
AN - SCOPUS:84880777852
VL - 260
SP - 1042
EP - 1049
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
SN - 0304-3894
ER -