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Risk assessment of chemical mixtures on the Swedish West Coast using water monitoring data

Poster
Authors Mikael Gustavsson
Jörgen Magner
Joachim Sturve
Thomas Backhaus
Published in Poster presentation at the Swedish Marine Sciences Conference in UMEÅ
Publication year 2014
Published at Department of Biological and Environmental Sciences
Language en
Keywords Chemical risk assessment, Chemical Monitoring, Marine Monitoring, EQS Data
Subject categories Biological Sciences

Abstract

In a recent screening campaign more than 60 different chemical compounds were detected in water from the Swedish west coast. The screening campaign covered five different sites and a total of 172 different compounds from a variety of different chemical use classes. The detected compounds included, for instance, pesticides, pharmaceuticals, phtalates and surfactants. For all detected compounds the environmental quality standard of the compound was thereafter determined. Data was gathered, primarily from the water framework directive and the REACH (Registration, Evaluation, Authorisation and restriction of Chemicals) registry database. The combination of detected concentrations and environmental quality standards enables a ranking of risk from the individual chemical compounds found at the Swedish west coast, as well as a determination of the risk from the combined exposure. Results show that triclosan was the compound that most often exceeded the environmental quality standard. Also, at none of the five sites where samples were taken was the combined risk from the exposure at acceptable levels. Finally, all environmental quality standards gathered has been compared to modelled toxicity data to determine the risks from using computer-based technologies as opposed to experimental data.

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