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Suspect screening in Nordic countries

Point sources in city areas

image of Suspect screening in Nordic countries

This report describes the results of a suspect screening study in samples from city areas in the Nordic countries. In contrast to target analysis, suspect screening starts with a general sample preparation and identification including as much compounds as possible. The resulting list of recorded compounds will be identified by comparison with a list of suspected compounds. Suspect screening has shown to be very useful for identification of emerging environmental pollutants. It was possible to identify: Perfluorinated compounds (PFC), chlorinated and brominated compounds, flame retardants, bisphenols, polycyclic aromatic compounds (PAC), industrial additives, and pharmaceuticals and personal care products (PPCP). This study was jointly performed by NILU, NIVA, and Umeå University on behalf of the Nordic Council of Ministers. The study was supervised by the Nordic screening group.

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Methodology

Co-ordination of sampling was supervised by NIVA, whereas the practical work was done or coordinated by the seven participating Nordic institutions in accordance with the Sampling Protocol as shown in the Appendix. This sampling protocol was prepared by the contracted institutes and adopted by the Steering Group. Each country sampled one effluent water sample (single/grab sample) from a major sewage treatment plant. In addition, it was also sampled one sediment sample (single/grab sample), and one fish sample (pooled sample) each (Table 1). These environmental samples were taken close to the effluent emission samples except the Danish samples of sediment and fish (see also Table 2).

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