Om förekomst av bekämpningsmedelsrester i grundvatten:erfarenheter från simrishamn kommun 2002–2007 / Monitoring of pesticides in rawwater wells in Simrishamn
In January 2007, all municipal water wells of Simrishamn, south Sweden, were sampled and analyzed for the presence of pesticide residuals. In total 34 wells were analyzed. The samples were analyzed at an accredited laboratory with respect to 77 different parameters of pesticides which either are used or have been used in the recharge area of the wells.
The results from the investigation 2007 show that residuals of pesticides were detected in 12 different water wells distributed across the municipality. For virtually all analyses, the concentrations reported are very low, in the order of 0,01 ìg/l, and only one or occasionally two parameters were found in each sample.
The same investigation was undertaken in 2002. Compared with those results, an important finding is that more parameters were found in 2007 compared with 2002. The overall concentration of residuals has not changed since 2002. The concentrations are not higher but not lower either. The fundamental conclusion is that the work with water protection areas and the control of pesticide spread is still necessary and inevitable.