**7. Conclusions**

182 Novel Approaches and Their Applications in Risk Assessment

In order to compare the results obtained after human hair analysis and the amount of these compounds detected in vegetables samples it was observed a quite good correlation as regards the humans' uptake values to hydrocarbons and the amounts of these compounds

Fig. 6. Mono- and polycyclic aromatic hydrocarbons amount from human hair samples

Comparing the uptake levels of mono- and polycyclic aromatic hydrocarbons it was observed that polycyclic aromatic hydrocarbons are better retained in living organisms than

Methylmercury was the most prevalent organometallic compound that was detected in environmental samples. This was a special case which is attributed to banned and improper managed old chemical factory. The amount of this compound founded in soil and water

Table 4. Methylmercury range values in soil and water samples in the last two years. Methylmercury amounts in vegetables samples grown in this region was between 0.5 – 12.1 µgkg-1 while in human and animal hair samples it's amount was between 0.2 – 19.1 and 0.5 – 10.3 ngkg-1, respectively. Once again higher values being detected in case of human

Soil 0.5 – 13.5 µgkg-1 0.5 – 15.1 µgkg-1 Water 0.6 – 10.8 µgL-1 0.6 – 13.9 µgL-1

Average value during time period 2009 2010

dependence by the amount of these compounds in the consumed foodstuffs.

**5.3 Organometallic compounds fingerprint on biological samples** 

Environmental compartment

monoaromatic hydrocarbons.

samples are listed through table 4.

Environmental contaminant

Organometallic compounds

subjects.

which are present in vegetables samples – see figure 6.

Major environmental pollutants that were detected in different environmental compartments of the studied regions were monoaryomatic hydrocarbons and chlorinated solvents, which were also the most prevalent as presence as well as amount. Methylmercury presence in environment is considered as a special case – environmental contamination in this case coming from the old banned chemical factory on which sites no remediation was applied. In almost all environmental contaminants cases, their presences are attributed to the industrial activities through these regions. All these contaminants leave an impact on the living things that live in the surrounded environment. Vegetables growing on a soil contaminated by former industrial activities may contain chlorinated or hydrocarbon pollutants in their tissues at significant concentrations.

Uses of noninvasive matrices in both animals as well humans' biomonitoring purposes have been showed to be suitable.

These compounds were detected in all humans and animals' hair samples. Compounds with higher molecular weight masses were easily accumulated by human bodies than the easier compounds.
