Evaluation of pollution degree of the Odra River basin with organic compounds after the 97 summer flood. Part I. Determination of pesticides and phenols in post-flood sediments and water

The pollution degree in post-flood water and sediments from the Odra River was evaluated using the procedures for pesticides and phenols analysis with final determination with GC-ECD, GC-NPD and HPLC-UV. The samples were take n from the Odra river during the first International Odra Project (IOP) cam paign (08.97). The solid phase extraction method for the separation of anal ytes from the water and extraction with the organic solvent for isolation o f analytes from the sediments were used. The results obtained show that the concentration of pesticides is low and in all cases below the allowable li mit. We did not find: phenol, o-nitrophenol, p-nitrophenol, 2,4-dinitrophen ol, o-chlorophenol, 2,4-dichlorophenol, 2,4-dichlorophenoxyacetic acid (2,4 -D), 2-methylo-4chlorophenoxyacetic acid (MCPA), 2-methylo-4-chlorophenoxyp ropionic acid (MCPP) in any analysed samples.