Nanomaterial is material with one dimension below 100 nm, while this definition also encompasses the nanoparticles as atomic or molecular aggregates in which two dimensions are in the 1-100 nm range (Klaine et al. 2008). Such small dimensions set against relatively large surface areas ensure that nanoparticles have physical-chemical and biological properties markedly different from homogeneous materials of the same kind (Nel et al. 2006). In turn, in line with origin, nanoparticles can be termed natural, incidental or engineered.While the presence of natural nanoparticles in the environment (as moon-dust or volcanic ash, for example) reflects