Effect-based trigger values for in vitro and in vivo bioassays performed on surface water extracts supporting the environmental quality standards (EQS) of the European Water Framework Directive

2018 ◽  
Vol 628-629 ◽  
pp. 748-765 ◽  
Author(s):  
Beate I. Escher ◽  
Selim Aїt-Aїssa ◽  
Peter A. Behnisch ◽  
Werner Brack ◽  
François Brion ◽  
...  
Keyword(s):  
Surface Water ◽  
Water Framework Directive ◽  
Environmental Quality ◽  
Quality Standards ◽  
European Water Framework Directive ◽  
Water Extracts ◽  
Environmental Quality Standards ◽  
European Water

scholarly journals Environmental quality standards for diclofenac derived under the European Water Framework Directive: 1. Aquatic organisms

2021 ◽  
Vol 33 (1) ◽  
Author(s):  
Dean Leverett ◽  
Graham Merrington ◽  
Mark Crane ◽  
Jim Ryan ◽  
Iain Wilson
Keyword(s):  
Water Framework Directive ◽  
Environmental Quality ◽  
Surface Waters ◽  
Wastewater Treatment Plants ◽  
Aquatic Organisms ◽  
Quality Standards ◽  
Environmental Quality Standards ◽  
Direct Toxicity ◽  
Freshwater Monitoring ◽  
Assessment Factor

AbstractDiclofenac is a nonsteroidal anti-inflammatory human and veterinary medicine widely detected in European surface waters, especially downstream from Wastewater Treatment Plants (WWTPs). Veterinary uses of diclofenac in Europe are greatly restricted, so wastewater is the key exposure route for wildlife. Proposed Environmental Quality Standards (EQS) which include an assessment of toxicity to aquatic organisms are under consideration by the European Commission (EC) to support the aims of the Water Framework Directive (WFD). The EC approach favours the use of a deterministic (single test value and an assessment factor) approach to the derivation of a direct toxicity EQS for diclofenac, resulting in an EQS of 0.040 µg L−1 based on a single mesocosm study. In this paper, we discuss potential issues with this approach with respect to the EC’s own guidance on EQS derivation and derive an evidence-driven alternative EQS of 0.126 µg L−1 using a probabilistic (species sensitivity distribution) approach that accounts for all of the reliable and relevant data and is in accordance with the guidance. Europe-wide freshwater monitoring data for diclofenac are used in an indicative compliance assessment using the EC and the alternative evidence-driven EQS. The implications of using only some data to derive an EQS that does not adhere to the guidance, compared to a guidance-compliant approach that uses all the data available are also discussed.

Use of Field Data to Support European Water Framework Directive Quality Standards for Dissolved Metals

2007 ◽  
Vol 41 (14) ◽  
pp. 5014-5021 ◽  
Author(s):  
Mark Crane ◽  
Kevin W. H. Kwok ◽  
Claire Wells ◽  
Paul Whitehouse ◽  
Gilbert C. S. Lui
Keyword(s):  
Water Framework Directive ◽  
Field Data ◽  
Quality Standards ◽  
European Water Framework Directive ◽  
Dissolved Metals ◽  
European Water

scholarly journals Environmental quality standards for diclofenac derived under the european water framework directive: 1. Aquatic organisms

2021 ◽  
Author(s):  
Dean Leverett ◽  
Graham Merrington ◽  
Mark Crane ◽  
Jim Ryan ◽  
Iain Wilson
Keyword(s):  
Water Framework Directive ◽  
Environmental Quality ◽  
Surface Waters ◽  
Wastewater Treatment Plants ◽  
Aquatic Organisms ◽  
Quality Standards ◽  
Environmental Quality Standards ◽  
Direct Toxicity ◽  
Freshwater Monitoring ◽  
Assessment Factor

Abstract Diclofenac is a nonsteroidal anti-inflammatory human and veterinary medicine widely detected in European surface waters, especially downstream from Wastewater Treatment Plants. Veterinary uses of diclofenac in Europe are greatly restricted, so wastewater is the key exposure route for wildlife. Proposed Environmental Quality Standards (EQS) which include an assessment of toxicity to aquatic organisms are under consideration by the European Commission (EC) to support the aims of the Water Framework Directive (WFD). The EC approach favours the use of a deterministic (single test value and an assessment factor) approach to the derivation of a direct toxicity EQS for diclofenac, resulting in an EQS of 0.040 µg L− 1 based on a single mesocosm study. In this paper, we discuss potential issues with this approach with respect to the EC’s own guidance on EQS derivation and derive an evidence-driven alternative EQS of 0.126 µg L− 1 using a probabilistic (Species Sensitivity Distribution) approach that accounts for all of the reliable and relevant data and is in accordance with the guidance. Europe-wide freshwater monitoring data for diclofenac are used in an indicative compliance assessment using the EC and the alternative evidence-driven EQS. The implications of using only some data to derive an EQS that does not adhere to the guidance, compared to a guidance compliant approach that uses all the data available is also discussed.

Study on a Landscape-Designed Ecological Barrier for Remediation of Micro-Polluted Water

2011 ◽  
Vol 250-253 ◽  
pp. 3941-3944
Author(s):  
Xiao Qiang Chen ◽  
He Li Wang ◽  
Xiao Jing Zhu
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Environmental Quality ◽  
Quality Standards ◽  
Polluted Water ◽  
Environmental Quality Standards ◽  
Ecological Barrier ◽  
Landscape Water ◽  
New Type

As the lake water of Yuyuantan Park of Beijing has became micro-polluted water after the cycles of social landscape and the micro-polluted water run into the Kunyu River, the research adopts a method of manual simulation to treatment the micro-polluted water with a new-type of compound pattern we call landscape-designed ecological barrier which consists of ecological pond and constructed wetland . In order to weak the adverse effects of micro-polluted water on natural water, this new-type of compound pattern forms a landscape-designed ecological barrier. After 5 months experiment, results show that the landscape-designed ecological barrier has a better removal of pollutants. The removal rates of COD, TN and TP respectively reached 65.2% ~ 73.6%, 62.5% ~ 66.0% and 70.0% ~ 80.0%. And the effluent quality can reach III - IV water-quality of environmental quality standards for surface water(GB3838-2002). In Autumn, the concentration of CODCr, TN and TP in effluent sustain at IV water-quality of environmental quality standards for surface water(GB3838-2002), and at the same time create artificial landscape water with environmental aesthetic and ornamental value, bring the benefit of water resources as well as positive ecological environment effects into full play synthetically.

Assessment of the Water Quality Status for the Jinshan Lake in Zhen Jiang

2013 ◽  
Vol 838-841 ◽  
pp. 1698-1702
Author(s):  
Zhi Gang Chen ◽  
Jun Jing Chen ◽  
Han Xiang Chen ◽  
Qing Jie Xie
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Total Nitrogen ◽  
Environmental Quality ◽  
Oxygen Demand ◽  
Quality Standards ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Environmental Quality Standards ◽  
Water Quality Status

The water quality of the Jinshan Lake in Zhen Jiang city were evaluated mainly on the basis of forty samples collected from four locations.The purposes of the study were to assess the levels of parameters associated with the demands of the functions of the water body and to compare them with Environmental Quality Standards for Surface Water. Water quality parameters included pH, Temperature, Biological Oxygen Demand (BOD5), Chemical Oxygen Demand (CODMn), permanganate index, Total Nitrogen (TN), Total Phosphorus (TP), and NH3-N were analyzed. These water quality parameters were surveyed in 2012 on a monthly basis.Most of them met the Class Ⅲ level of Environmental Quality Standards for Surface Water excepting the Total Nitrogen and Total Phosphorus.The results show that the phenomenon of eutrophication existed in the the Jinshan Lake in 2012.

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