TY - JOUR N2 - Analyses of the ground waters in respect of presence of residues of plant protection products, i.e. active substances as well as environmental metabolites thereof are performed in the Institute of Plant Protection since the end of 80ties of the past Century. Based on the results obtained in 1993–1994 for 40 wells located in administrative territories of former Poznań, Toruń and Bydgoszcz voivodeships, in the vicinity of intensive agricultural production areas (orchards, farms), wells where significant amounts of residues of triazines group and dealkylated metabolites thereof had been found previously were qualified to further studies. There were 6 wells in which triazine residues were determined most often. Additionally, based on hydrogeological maps, directions of underflows in the areas of well’s locations were determined as well. The aim of the above was to find the additional places for sampling waters distant from pollution sources and estimation of the level of residues of target compounds depending on distance from the basic wells. Seven triazine compounds including basic active substances (atrazine, simazine) and their metabolites [desethyl atrazine, desisopropyl atrazine, desethyldesisopropyl atrazine, hydroxyatrazine and hydroxysimazine] were selected for the presented studies. Residues were analyzed using methodologies designed in the Institute, i.e. solid-phase extraction (SPE) followed by determination by chromatographic techniques HPLC-PDA, GC-NPD and GC-MS. Generally, during 11 years of investigations (1993–2003) samplings were performed 52 times and 323 samples of groundwater including that from additional wells were analyzed. Most often residues of atrazine and deethylatrazine in wells located in environs of Poznań were detected. L1 - http://journals.pan.pl/Content/118546/PDF-MASTER/pan_doi_blank.pdf L2 - http://journals.pan.pl/Content/118546 PY - 2006 IS - No 2 EP - 155 KW - residues KW - plant protection products KW - herbicides KW - sampling KW - SPE KW - HPLC KW - GC A1 - Drożdżyński, Dariusz PB - Committee of Plant Protection PAS PB - Institute of Plant Protection – National Research Institute VL - vol. 46 DA - 13.06.2006 T1 - Residues and transfer of triazine herbicides in ground waters of intensively exploited arable land in Wielkopolska province of Poland SP - 145 UR - http://journals.pan.pl/dlibra/publication/edition/118546 T2 - Journal of Plant Protection Research ER -