The Impact of Pesticides - Academy Publish

formed clusters (Figure 3). Ultrastructural patterns revealed a proliferation ofmitochondria, their polymorphism, swelling and dilution of the matrix (Figure 4, 5).Rough endoplasmatic reticulum was subject to defragmentation and vesiculartransformation. Those lesions were relatively often accompanied by the presence ofmyelin-like structures in necrotic microfoci hepatocytes. In own research, theanimals that were most susceptible to environmental contamination proved to beblack striped-field mice and, to a slightly lower degree, yellow-necked mice andcarps. The described lesions were found only sporadically in animals feeding in thearea far from PD.Fig. 3. Hepatopancreas of the carp (Cyprinus carpio L.) living in a pond situatedclose to pesticide dump - cluster of melanomacrophages (arrow) located amonghepatocytes. HE stain., magn. x 520.CONCLUSIONSThe serious problem posed by hazardous substance dumping sites, both for humansand for the natural environment, with particular focus on species biodiversity,requires finding appropriate analytical methods, research tools and biomarkers orbioindicators. The problem is all the more serious as this field of knowledge hassignificant gaps, not only as regards the Polish literature but also on a global scale.Long-term, multi-dimensional, and therefore innovative, environmental studies wererequired to achieve this aim. The research on the impact of the hazardous wastedisposal site on species biodiversity and environmental safety was aimed at creatinga certain model of analyses, which could be used as a scheme for monitoringpotentially threatened places for rapid intervention and for preventing ecologicaldisasters, not only in Poland but also all over the world.The results of the research can be a significant point of reference, making it possibleto observe and to assess changes occurring in the natural environment under theinfluence of a hazardous waste dumping site. Additionally, the information collectedwill facilitate the monitoring of such environments for their effective reclamation orAcademyPublish.org - The Impact of Pesticides160