Authors: Rui Shi Chunhui Yang Runhua Su Jiarui Jin Yi Chen Hongling Liu John P Giesy Hongxia Yu
Publish Date: 2014/07/02
Volume: 21, Issue: 22, Pages: 12968-12978
Abstract
Tai Lake Ch Taihu which is the largest lake in Jiangsu province China has been affected by human activities As part of a concerted effort to improve water quality to protect the integrity of the Tai Lake ecosystem a water quality criterion WQC was developed for copper Cu II The acute WQC was based on 440 values for acute toxicity of Cu to 24 species from 6 phyla 16 families and 20 genera In addition 255 values for chronic toxicity of Cu to 10 species from 5 phyla 8 families and 9 genera were used to derive chronic WQC Instead of using a traditional approach based species sensitivity distributions SSD a weighted species sensitivity distribution WSSD approach was used to calculate the cumulative probability based on endemic species to Tai Lake Acute and chronic WQC developed by use of the WSSD were 53 and 37 μg Cu/L respectively While the WQC values were comparable to those of other countries there were slight differences due to variability in species composition of different regions The sitespecific criteria indicated that the current standard set for surface water by the Chinese government might not be protective of aquatic organisms in Tai LakeThis work was jointly funded by the National Natural Science Foundation of China No 21377053 and 20977047 Major National Science and Technology Projects No 2012ZX07506001 and 2012ZX0750100302 Prof Giesy was supported by the program of 2012 “High Level Foreign Experts” No GDW20123200120 funded by the State Administration of Foreign Experts Affairs the People’s Republic of China to Nanjing University and the Einstein Professor Program of the Chinese Academy of Sciences He was also supported by the Canada Research Chair program a Visiting Distinguished Professorship in the Department of Biology and Chemistry and State Key Laboratory in Marine Pollution City University of Hong Kong Great thanks to David Saunders a vanier scholar in ecotoxicology studying in Toxicology Centre University of Saskatchewan for his time in polishing our manuscript
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