Linking Trace Organic Contaminants in On‐Site Wastewater‐Treatment Discharge with Biological Effects
| Autor: | Christopher P. Higgins, Les D. Warren, Richard L. Kiesling, Meaghan E. Guyader, Heiko L. Schoenfuss |
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| Rok vydání: | 2021 |
| Předmět: |
Male
Pollution Larva Health Toxicology and Mutagenesis media_common.quotation_subject Aquatic ecosystem Cyprinidae Zoology Wastewater Contamination Biology Fecundity Vitellogenins Vitellogenin biology.protein Animals Environmental Chemistry Sewage treatment Pimephales promelas Ecosystem Water Pollutants Chemical media_common |
| Zdroj: | Environmental Toxicology and Chemistry. 40:3193-3204 |
| ISSN: | 1552-8618 0730-7268 |
| Popis: | Around the globe, on-site wastewater-treatment systems (OWTSs) are critical for rural communities without access to a municipal sewer system. However, their treatment efficiency does not match that of modern wastewater-treatment plants. The impact of OWTS discharge on nearby aquatic ecosystems and their resident fish species is poorly understood. In the present study, larval and adult fathead minnows (Pimephales promelas) and adult sunfish (Lepomis macrochirus) were exposed for 21 days to two trace organic contaminant (TOrC) mixtures replicating water chemistry derived from a previous environmental study. Larval fathead minnows were assessed for survival, growth, predator avoidance, and feeding efficiency. Adult fathead minnows and sunfish were assessed for a suite of physiological endpoints (condition indices, vitellogenin, glucose), histological changes, and fecundity. The only observed effect of TOrC mixture exposure on larval fathead minnows was a decrease in feeding efficiency. Effects were mixed in exposed adult fishes, except for male sunfish which realized a significant induction of vitellogenin (p |
| Databáze: | OpenAIRE |
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