Environmental Risk Assessment on Chlorination By-Products in Discharge Water from Once-Through Seawater Cooling System

2013 ◽  
Vol 777 ◽  
pp. 397-400
Author(s):  
Jing Liu ◽  
Xing Yu Zeng ◽  
Yi Wang ◽  
Xian Hui Pan
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Cooling System ◽  
Aquatic Organisms ◽  
Dichloroacetic Acid ◽  
Guidance Document ◽  
The European Union ◽  
Discharge Water ◽  
Technical Guidance ◽  
By Products

Concentration analysis was performed on five chlorination by-products in discharge water from once-through seawater cooling system of Dagang Power Plant in Tianjin. In addition, toxic effects [L (E)C50] analysis was performed from three basic levels of aquatic organisms Scenedemus vacuolatus, Daphnia magna and Oncorhynchus mykiss). Based on this, the quotient method from the Technical Guidance Document (TGD) on Risk Assessment of Chemical Substances by the European Union was adopted to assess the ecological risks of five chlorination by-products in discharge water from once-through seawater cooling system. The results showed that chloral, dichloroacetic acid and pentachlorophenol had environmental risk.

scholarly journals Taking Full Advantage of Modelling to Better Assess Environmental Risk Due to Xenobiotics

2021 ◽  
Author(s):  
Sandrine Charles ◽  
Aude Ratier ◽  
Virgile Baudrot ◽  
Gauthier Multari ◽  
Aurélie Siberchicot ◽  
...  
Keyword(s):  
Environmental Risk ◽  
Aquatic Organisms ◽  
The European Union ◽  
Time Dimension ◽  
New Era ◽  
Individual Level ◽  
Regulatory Bodies ◽  
On Line ◽  
The Individual ◽  
User Friendly

Abstract In the European Union, more than 100,000 man-made chemical substances are awaiting an environmental risk assessment (ERA). Simultaneously, ERA of chemicals has now entered a new era. Indeed, recent recommendations from regulatory bodies underline a crucial need for the use of mechanistic effect models, allowing assessments that are not only ecologically relevant, but also more integrative, consistent and efficient. At the individual level, toxicokinetic-toxicodynamic (TKTD) models are particularly encouraged for the regulatory assessment of pesticide-related risks on aquatic organisms. In this paper, we first propose a brief review of classical dose-response models to put into light the on-line MOSAIC tool offering all necessary services in a turnkey web platform whatever the type of data to analyze. Then, we focus on the necessity to account for the time-dimension of the exposure by illustrating how MOSAIC can support a robust calculation of bioaccumulation factors. At last, we show how MOSAIC can be of valuable help to fully complete the EFSA workflow regarding the use of TKTD models, especially with GUTS models, providing a user-friendly interface for calibrating, validating and predicting survival over time under any time-variable exposure scenario of interest. Our conclusion proposes a few lines of thought for an even easier use of modelling in ERA.

scholarly journals An Environmental Risk Assessment of Filling Stations Using the Principles of Security Management. A Case Study in the Slovak Republic

2021 ◽  
Vol 13 (22) ◽  
pp. 12452
Author(s):  
Katarína Mäkká ◽  
Katarína Kampová ◽  
Tomáš Loveček ◽  
Katarína Petrlová
Keyword(s):  
Risk Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Slovak Republic ◽  
Strict Liability ◽  
Environmental Damage ◽  
Assessment Procedure ◽  
The European Union ◽  
Environmental Liability ◽  
Risk Sources

The issue of environmental risk assessment currently deserves great attention. In order to protect the environment, maintain healthy living conditions, and prevent environmental damage, the member states of the European Union have adopted a Directive of the European Parliament and of the Council on environmental liability with regard to the prevention and remedying of environmental damage. The directive classifies two types of operators with different liability regimes for environmental damage, namely, the regime with no-fault (strict) liability and liability for fault. With the adoption of the directive, among experts, operators and the general public have posed questions about how to assess the risk of environmental damage. At present, there is still no uniform procedure for assessing environmental risks, which would create a comprehensive methodological framework for assessment for this type of risk. Due to the non-existent risk assessment methodology for operators with strict liability regimes and the lack of a systematic search for risk sources, a risk assessment procedure is proposed that provides guidance in a sequence of several steps on how to implement the obligations arising from the adopted Environmental Liability Directive. The proposed procedure was verified on a specific operator with a strict liability regime. The environmental risk analysis performed through the proposed procedure provided information on possible operational problems and verified its applicability. Last but not least, the use of the proposed procedure makes it possible to identify serious sources of risk and to establish necessary preventive measures to prevent the occurrence of environmental damage.

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