Re-Examination of the Genotoxic Activity of Water Taken From the Songhua River in P. R. China

Yu, Jing; Dong, Huijuan; Shi, Litian; Jiang, Hui-Ling; Yu, Jia-Kuo; Zhao, Qianwen; Cai, Shi-Chun; Han, Di; Tang, Xuan-Yue; Liu, Jia-Ren

doi:10.1007/s00244-013-9876-6

Cited by 9 publications

(2 citation statements)

References 27 publications

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“…Water pollution leads to a number of deleterious effects on organisms living in its areas, as well as human health (Yu et al 2013). Among the lethal and sub-lethal effects caused by these complex mixtures in water, fertility problems as well as cellular, metabolic, and DNA damages are noteworthy (Bianchi et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Pollutants of the Guaribas river water and their toxicogenic effects

et al. 2019

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Tropical rivers used for water supply, irrigation and tourism have effects on anthropic activities. This study aimed to evaluate the presence of different pollutants in the aquatic environment of the Guaribas river water and their possible cytogenotoxic effects. For this, the presence of heavy metals and cyanobacteria along with the possible cytogenotoxic effects in the aquatic environment were evaluated at the city of Picos-PI/Brazil, of its upstream, within and downstream regions. The results suggest that the electrical conductivity, total dissolved oxygen and solids, turbidity, color, chlorine and total phosphorus were above the allowed levels by the country's legislation, especially at the points associated with the main city. Water collected from the within and downstream regions showed a significant cytotoxic and mutagenic effects, regardless of seasons, where a positive correlation was observed between the genetic damage and heavy metal contents. Furthermore, mutagenic cyanotoxins were also found in the samples. These results pointed out that the Guaribas river contains physical and chemical contaminants, and cyanotoxins, that can cause genetic damages, suggesting a bad impact on the aquatic ecosystem, human and other animals directly or indirectly dependent on it. In

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Section: Discussionmentioning

confidence: 99%

Pollutants of the Guaribas river water and their toxicogenic effects

et al. 2019

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“…On November 13, 2005, the Songhua River in northeast China suffered a serious pollution by NB due to the explosion of a nearby factory, resulting in the NB concentrations in downstream were 30‐fold of the permissible limits for drinking water . After the passage of nearly 10 yr, the residual NB enriched in river sediments and in the aquatic organisms could now still exhibit genotoxicity impact on microbial communities .…”

Section: Introductionmentioning

confidence: 99%

Effect of shocked nitrobenzene concentrations on the operational performance of anaerobic sequential batch reactor

Huang

Han

et al. 2017

Env Prog and Sustain Energy

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Two lab‐scale anaerobic sequence batch reactors (ASBRs), respectively fed with 5 mg L−1 (R1) and 200 mg L−1 (R2) of sulfate were set up in this study. A mixture of the volatile fatty acids (VFAs) containing acetate and propionate was provided as electron donors. The effects of the influent nitrobenzene (NB) concentrations and the external electron acceptor of sulfate on the operational performance of ASBRs were investigated. The results indicated that NB reduction, sulfate reduction and propionate degradation were inhibited or further terminated in response to a shocked influent NB concentration of 50 mg L−1, i.e., 32 g m−3 day−1. However, these biological activities in ASBRs could be reversibly resumed so long as the influent NB regained below 30 mg L−1. The insufficient propionate was the main electron donor for the simultaneous reductions of NB and sulfate. Sulfate can energetically compete with NB for propionate as a co‐substrate, resulting in the better performance of reactor R1 than that of R2. In engineering applications, the influent loading rates of pollutants should be safely declined below toxic thresholds to avoid the failure of system operation. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 712–718, 2018

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Mutagenicity, Genotoxicity, and Estrogenic Activity of River Porewaters

Parrella

Lavorgna

Criscuolo

et al. 2013

Arch Environ Contam Toxicol

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We investigated mutagenicity, genotoxicity, and estrogenic activity in the porewaters of two river basins in southern Italy that had different features. Three samples from each site were collected in different seasons from 7 sites for a total of 21 samples. Mutagenicity was measured with the Ames test with and without metabolic activation (S9) using Salmonella typhimurium TA98 and TA100 strains. Genotoxicity was measured with two tests: one involved a chromophore that detected DNA damage in Escherichia coli PQ37 (SOS chromotest), and the other measured micronuclei formation in the root cells of Vicia faba. Estrogenic activity was measured with a yeast-based estrogen receptor assay and an MCF-7 cell-based, estrogen-sensitive proliferation assay. We also applied chemical analyses to detect alkylphenols, pesticides, natural and synthetic hormones, and heavy metals. The porewaters of both river sediments showed mutagenic/genotoxic activity on V. faba test and Ames test, the latter both with and without S9 liver fraction. The SOS chromotest without metabolic activation was not sufficiently sensitive to detect genotoxicity of the porewaters, but the SOS DNA repair system in E. coli PQ37 was activated in the presence of S9 mix. Good correlations were found between mutagenicity/genotoxicity and the concentration of cadmium and between estrogenic activity and the presence of copper. This study assessed the chemical concentrations of some bioavailable pollutants in porewater and detected the overall effects of multiple pollutants that contributed to mutagenicity, genotoxicity, and estrogenic activity of these two basin porewaters, thus increasing our understanding of the environmental consequences of polluted aquatic ecosystems.

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Re-Examination of the Genotoxic Activity of Water Taken From the Songhua River in P. R. China

Cited by 9 publications

References 27 publications

Pollutants of the Guaribas river water and their toxicogenic effects

Pollutants of the Guaribas river water and their toxicogenic effects

Effect of shocked nitrobenzene concentrations on the operational performance of anaerobic sequential batch reactor

Mutagenicity, Genotoxicity, and Estrogenic Activity of River Porewaters

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