1. Department of Environmental Science and Engineering, Technical University of Denmark, DK-2800 Lyngby, Denmark
2. Krüger A/S, Gladsaxevej 363, DK-2860 Søborg, Denmark
3. Water Quality Institute, Agern Allé 11, DK-2970 Hørsholm, Denmark
4. Lynettefœllesskabet, Refshalevej 250, DK-1472 Copenhagen K, Denmark