Fig nbsp xA Distribution of water sample collection points

Mycotoxins — secondary metabolites of microscopic fungi — naturally occur in various cereals, fruits, vegetables and organic material in the soil, but can also be formed under moist conditions during storage (Barkai-Golan and Paster, 2008, Hoerger et al., 2009, Irzykowska et al., 2012, Wa?kiewicz and St?pień, 2012 and Wawrzyniak and Wa?kiewicz, 2014). Research conducted so far has focused mainly on the occurrence of mycotoxins in food and feed as the most important sources of these Dorsomorphin compounds because of their potential threat to human and animal health (Goliński et al., 2009 and Goliński et al., 2010). Important classes of mycotoxins are formed by Fusarium, Aspergillus and Penicillium spp. and comprise of aflatoxins, ochratoxins, trichothecenes (mainly deoxynivalenol), fumonisins and zearalenone ( Barkai-Golan and Paster, 2008, Goliński et al., 2009, Goliński et al., 2010, Wawrzyniak and Wa?kiewicz, 2014 and Yoshinari et al., 2014). Although cell-mediated immunity topic has been very well investigated and documented, very few studies have been published on their occurrence in different environmental matrices, and their ecotoxicological effects are largely unknown ( Bucheli et al., 2005, Gromadzka et al., 2009, Gromadzka et al., 2012 and Wa?kiewicz et al., 2012).