Assessment of Biological Toxicity and Ecological Safety for Urban Black-Odor River Remediation

Rou-Rou Xu, Zhou-Tao Pei, Wen-Qian Wang, Meng Zhang, Li-Ling Zhang, Jing Zhang, Wen-Qiang Wang, Li-Wei Sun and Yi-Min Zhang
Additional contact information
Rou-Rou Xu: School of Energy & Environment, Southeast University, Nanjing 210096, China
Zhou-Tao Pei: School of Energy & Environment, Southeast University, Nanjing 210096, China
Wen-Qian Wang: School of Energy & Environment, Southeast University, Nanjing 210096, China
Meng Zhang: School of Energy & Environment, Southeast University, Nanjing 210096, China
Li-Ling Zhang: School of Energy & Environment, Southeast University, Nanjing 210096, China
Jing Zhang: School of Energy & Environment, Southeast University, Nanjing 210096, China
Wen-Qiang Wang: School of Energy & Environment, Southeast University, Nanjing 210096, China
Li-Wei Sun: School of Energy & Environment, Southeast University, Nanjing 210096, China
Yi-Min Zhang: Research Center of Watershed Ecological Conservation and Water Pollution Control, Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Nanjing 210042, China

IJERPH, 2020, vol. 17, issue 3, 1-14

Abstract: The judgment and assessment of remediation effect on urban black-odor river still depend on the physical-chemical parameters and lack in ecological safety effects. A set of combined biological toxicity tests were applied to evaluate the ecological effects of one urban black-odor river before and after the remediation. The special growth rate of Chlorella vulgaris and mortality rate of Daphnia magna were used to assess acute toxicity. The Salmonella Typhimurium /Reverse Mutation Assay was applied to test the mutagenicity. The tests by C. vulgaris growth showed that there was no inhibition before and after remediation by overlying water, in contrast promoted the growth of C. vulgaris . The tests by D. magna showed slight toxicity on site 3# before remediation and nontoxic after remediation. The mutagenicity of organic extracts from overlying water at all sampling sites were positive before remediation, but were eliminated after remediation except from 3 of 4 sites on TA98 strain. The addition of the liver microsomal S9 induced the positive mutagenicity on site 4# compared to S9 absence. The results clarified the applicable and the importance of the biological toxicity tests on assessing the remediation effect and potential ecological risk of urban black-odor river.

Keywords: urban black-odor river; overlying water; biological toxicity; mutagenicity (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1660-4601/17/3/1025/pdf (application/pdf)
https://www.mdpi.com/1660-4601/17/3/1025/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:17:y:2020:i:3:p:1025-:d:317193

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().