1. Distribution of PAHs
in the environment
Department of Environmental Engineering and Occupational Safety
Faculty of Technical Sciences
University of Novi Sad
M. S. Okuka, N. V. Šenk
May 2012.
Sofia

2. PAHs-Polycyclic Aromatic Hydrocarbons
• Organic pollutants
• Origin
• Toxicity

3. PAHs-Polycyclic Aromatic Hydrocarbons
• Sorption processes
• Dry and wet deposition
• Air/ Soil /Water

4. Structure

5. SPARC (Sparc Performs Automated Reasoning
in Chemistry)
Using the molecular structure model gas/particle partitioning
coefficient (Kp) is calculated using the formula:
Kp f wiom K wiom
K wiom - sorption coefficient calculated with SPARC softvare (ciWIOM/ciair)
f wiom - mass fraction of water insoluble organic matter (wiom) in
aerosol (recomended value 40%)

6. SPARC (Sparc Performs Automated Reasoning
in Chemistry)
The model was validated for three types of WIOM polymers
Secondary organic aerosol polymers used in calculations as
organic matter surrogate

7. Locations in Novi Sad
N1-NIS refinery,
N2-Sangaj kindergarden,
N3-City's Assembly

8. Comparison of log Kp values-measured and
modelled
6
5.5
B(a)P
B(b)F
B(k)F B(b)F
5 B(k)F B(ghi)P
B(b)F
B(a)P B(k)F
N1
N2
4.5
N3
Line 1:1
4
B(a)A
B(a)A
Chr B(a)A
3.5 Chr
3
3 3.5 4 4.5 5 5.5 6

9. Conclusion
Predictions for PAHs with carcinogenic, mutagenic and
teratogenic properties are close to linear relationship, which
means that SPARC model can be used for prediction of
partitioning and distribution processes.

10. The study of partition processes
heterogenic system
• air/water
• air/soil
• water/soil
are in progress.

11. THANK YOU FOR YOUR
ATTENTION!!!
БЛАГОДАРЯ ВИ ЗА
ВНИМАНИЕТО!!!