DOI: 10.1016/j.watres.2018.02.002
Scopus记录号: 2-s2.0-85042232854
论文题名: Characterization and risk assessment of seasonal and weather dynamics in organic pollutant mixtures from discharge of a separate sewer system
作者: Beckers L.-M. ; Busch W. ; Krauss M. ; Schulze T. ; Brack W.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 135 起始页码: 122
结束页码: 133
语种: 英语
英文关键词: Acute and sublethal risks
; Organic micropollutants
; Pollutant patterns
; Rain sewer
; Seasonal and weather dynamics
; Wastewater treatment plant
Scopus关键词: Aquatic organisms
; Dynamics
; Insecticides
; Liquid chromatography
; Mass spectrometry
; Mixtures
; Organic pollutants
; Pollution detection
; Rain
; Risk assessment
; Rivers
; Sewage pumping plants
; Sewers
; Wastewater disposal
; Wastewater treatment
; Water treatment plants
; Illicit connections
; K - means clustering
; Liquid chromatography tandem mass spectrometry (LC MS/MS)
; Organic micro-pollutants
; Organic micropollutant
; Pollutant patterns
; Wastewater discharge
; Wastewater treatment plants
; River pollution
; 2 (4 chloro 2 methylphenoxy)acetic acid
; acesulfame
; carbendazim
; diclofenac
; dimethoate
; dimpylate
; diuron
; fipronil
; herbicide
; rain
; spiroxamine
; sweetening agent
; terbutylazine
; unclassified drug
; disinfectant agent
; fresh water
; Article
; biodegradation
; catchment
; dynamics
; effluent
; liquid chromatography-mass spectrometry
; pest control
; priority journal
; risk assessment
; season
; sewer
; waste water
; waste water treatment plant
; water pollutant
; weather
; agriculture
; analysis
; chemistry
; environmental monitoring
; risk assessment
; river
; season
; water pollutant
; weather
; algae
; Crustacea
; Agriculture
; Disinfectants
; Environmental Monitoring
; Fresh Water
; Rain
; Risk Assessment
; Rivers
; Seasons
; Waste Water
; Water Pollutants, Chemical
; Weather
英文摘要: Sites of wastewater discharge are hotspots for pollution of freshwaters with organic micropollutants and are often associated with adverse effects to aquatic organisms. The assessment, monitoring and managment of these hotspots is challenged by variations in the pollutant mixture composition due to season, weather conditions and random spills. In this study, we unraveled temporal exposure patterns in organic micropollutant mixtures from wastewater discharge and analyzed respective acute and sublethal risks for aquatic organisms. Samples were taken from two components of a separate sewer system i) a wastewater treatment plant (WWTP) and ii) a rain sewer of a medium size town as well as from the receiving river in different seasons. Rain sewer samples were separately collected for rain and dry - weather conditions. We analyzed 149 compounds by liquid chromatography-tandem mass spectrometry (LC-MS/MS). By considering the pollution dynamics in the point sources, we reduced the complexity of pollutant mixtures by k-means clustering to a few emission groups representing temporal and weather-related pollution patterns. From these groups, we derived biological quality element (BQE) - specific risk patterns. In most cases, one main risk driving emission group and a few individual risk driving compounds were identified for each BQE. While acute risk for fish was quite low, algae were exposed to seasonally emitted herbicides (terbuthylazine, spiroxamine) and crustaceans to randomly spilled insecticides (diazinon, dimethoate). Sublethal risks for all BQE were strongly influenced by constantly emitted pollutants, above all, pharmaceuticals. Variability of risks in the river was mainly driven by water discharge of the river rather than by season or peak events. Overall, the studied WWTP represented the major pollution source with a specific emission of agricultural compounds. However, the investigated rain sewer showed to be a constant pollution source due to illicit connections and was an important entry route for high loads of insecticides and biocides due to spills or incorrect disposal. By considering these pollution and risk dynamics, monitoring strategies may be optimized with a special focus on times of low flow conditions in the river, rain events and seasonally emitted risk drivers. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112880
Appears in Collections: 气候减缓与适应
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作者单位: Helmholtz Centre for Environmental Research - UFZ, Department of Effect-Directed Analysis, Permoserstrasse 15, Leipzig, 04318, Germany; RWTH Aachen University, Institute of Biology V, Worringerweg 1, Aachen, 52074, Germany; Helmholtz Centre for Environmental Research - UFZ, Department of Bioanalytical Toxicology, Permoserstrasse 15, Leipzig, 04318, Germany
Recommended Citation:
Beckers L.-M.,Busch W.,Krauss M.,et al. Characterization and risk assessment of seasonal and weather dynamics in organic pollutant mixtures from discharge of a separate sewer system[J]. Water Research,2018-01-01,135