Environmental Quality Standards for Water Framework Directive Priority Substances: Challenges and Opportunities

2007 ◽  
Vol 3 (2) ◽  
pp. 290 ◽  
Author(s):  
Mark Crane ◽  
Marc Babut
Keyword(s):  
Water Framework Directive ◽  
Environmental Quality ◽  
Quality Standards ◽  
Priority Substances ◽  
Environmental Quality Standards ◽  
Challenges And Opportunities

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.

On-site evaluation of the efficiency of conventional and advanced secondary processes for the removal of 60 organic micropollutants

2010 ◽  
Vol 62 (12) ◽  
pp. 2970-2978 ◽  
Author(s):  
S. Martin Ruel ◽  
M. Esperanza ◽  
J.-M. Choubert ◽  
I. Valor ◽  
H. Budzinski ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Environmental Quality ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Quality Standards ◽  
Priority Substances ◽  
Municipal Wastewater Treatment ◽  
Source Reduction ◽  
Environmental Quality Standards ◽  
Removal Efficiencies

The next challenge of wastewater treatment is to reliably remove micropollutants at the microgram per litre range in order to reduce the discharge for priority substances and to meet the environmental quality standards set by the European Water Framework Directive. The present work assessed the occurrence of 60 organic substances (priority substances and other relevant pollutants) in municipal wastewater and sludge. Their fate in the treatment processes and their removal efficiencies were quantified. Thorough on-site mass balances were carried out at 8 municipal wastewater treatment plants chosen among conventional and advanced secondary processes. It was found that 70% of the substances were quantified in raw wastewater and 50% in effluent, with a transfer without a limited degradation for most of them. Low loaded activated sludge (AS) process reduced the emission of more than half of micropollutants. At low sludge retention time (AS under high load), lower removal efficiencies were measured compared to low loaded AS. No influence of temperature of the biological reactor was shown. The membrane bioreactor process increased the removal efficiencies for one third of the substances that were partially removed with AS. Still, five substances were measured at concentrations exceeding the environmental quality standards at the outlet of the studied plants. In addition to efforts for source-reduction, complementary treatments need to be set-up.

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.

scholarly journals Analisis Kualitas Air Di Lahan Reklamasi Pertambangan Nikel Desa Mohoni, Petasia Timur, Morowali Utara

2020 ◽  
Vol 6 (1) ◽  
pp. 96
Author(s):  
FX Anjar Tri Laksono ◽  
Indra Permanajati ◽  
Rahmat Mualim
Keyword(s):  
Water Quality ◽  
Environmental Quality ◽  
Environmental Conditions ◽  
Quality Standards ◽  
Mining Activities ◽  
Environmental Quality Standards ◽  
Test Parameters ◽  
Nickel Mining ◽  
Quality Water ◽  
Reclamation Area

In Mohoni Village, East Petasia District, North Morowali Regency there are nickel mining activities that are carried out by PT. Asiamax Mining Indonesia. Several locations were mine out status. Hence, reclamation programs are made to improve environmental conditions before mining. One of these stages is water quality tests to ensure that the reclamation area is worthy to be a habitat for animals and plants. The purpose of this study is to find out the water quality in the reclamation area of the ex-nickel mining in Mohoni Village. The storet method is used to analyze water quality whose test parameters include pH, total suspanded solid (TSS), concentrations of copper (Cu), cadmium (Cd), zinc (Zn), lead (Pb), nickel (Ni), chromium valence 6, iron (Fe), manganese (Mn), and cobalt (Co) once every three months for a year.The quality water check results are compared with the environmental quality standards in accordance with law number 32 of 2009. Based on the average monitoring results show that the water quality is classified as moderately polluted. The conclusion from this study is that reclamation land might be not used as habitat for animals and plants because the availability of water is not suitable for consumption

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