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- Zhang, Yuan, et al. Show all 6 Authors
- Environmental pollution 2016 v.219 pp. 663-671
- Chironomus tentans; acute toxicity; adverse effects; benthic organisms; chemistry; heavy metals; midges; mortality; organochlorine pesticides; organophosphorus pesticides; piperonyl butoxide; pollutants; polychlorinated biphenyls; polycyclic aromatic hydrocarbons; pyrethrins; rivers; screening; sediments; temperature; toxic substances; toxicity testing; China
- ... Contaminants accumulated in sediments may directly harm benthic organisms, however, the specific contaminants responsible for adverse effects have been poorly described. In this study, a bioassay-directed analysis combined with toxicity tests and chemistry analysis was conducted to determine the compounds eliciting the greatest toxicological effect in the sediments in Liaohe River, northeast China ...
- Zhang, Yuan, et al. Show all 8 Authors
- Environmental pollution 2016 v.213 pp. 833-840
- antibiotic resistance; drainage systems; genes; pollutants; principal component analysis; rivers; sediments; sewage; sulfonamides; surface water; tetracycline; urbanization; China
- ... The occurrence and distribution of sulfonamide and tetracycline, corresponding bacterial resistant rate and resistance genes (ARGs) and two integrase genes were investigated in seven urban rivers in Beijing, China. The total concentration of sulfonamide and tetracycline ranged from 1.3 × 101–1.5 × 103 ng/L and 3.9 × 101–5.4 × 104 ng/L for water, and 1.0 × 100–2.7 × 102 and 3.1 × 101–1.6 × 102 ng/g ...