| Abstract [eng] |
Kristina Taurozaitė The estimation of existed pesticides dumps contamination with pesticides residues Summary The biggest pollution of the pesticides is fixed in soil and ground water areas of the pesticides dumps and sites after a fire of the pesticides warehouses. The main sources of the pollution of the pesticides are fire of the warehouses of the pesticides and pesticides dumps. The negative impact on environment of pesticides is irreversible, causing various degenerations, aberrations and diseases to animals and plants. It was estimated that in Marijampolio and Tryškių pesticides dumps, concentration of some pesticides exceeds HN 60:2004 stated MCL (maximum concentration levels) values from 1 to 1460 times in Marijampolio pesticide dump while in Tryškių pesticides dump from 1,5 to 3600 times. Whereas the same concentration in ground samples in 0,9 -1.0 depth declines and MCL exceed just from 1 to 38 times in Marijampolio pesticides dumps, and to 144 times in Tryškių pesticides dumps. In Tryškių and Marijampolio pesticides dumps soil and ground analyses were made. It was estimted that ground water in Tryškių pesticide dump area is polluted deeply by pesticides. Its pollution of separate pesticides by different normative act stated MCL exeeds to 96 times in Tryškių and to 1000 times in Marijampolio pesticides dumps areas. That is why ground water of Marijampolio pesticides dumps areas is poluted more than in Tryškių pesticides dumps area. Analytically analyzed pesticides in ground samples only these: aldrin, dieldrin, endrin, metoxichlor, endosulfane (beta), endosulfane (alfa, )chlorpyrifos, metilchlorpyrifos, chlorfenvinfos was nowhere fixated. |
