scholarly journals Identifying carcinogenic activity of methylated and non-methylated polycyclic aromatic hydrocarbons (PAHs) through electronic and topological indices

2000 ◽  
Vol 30 (3) ◽  
pp. 560-568 ◽  
Author(s):  
R.S. Braga ◽  
P.M.V.B. Barone ◽  
D.S. Galvão
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Topological Indices ◽  
Carcinogenic Activity ◽  
Polycyclic Aromatic

Generalised Multiplicative Indices of Polycyclic Aromatic Hydrocarbons and Benzenoid Systems

2017 ◽  
Vol 72 (6) ◽  
pp. 573-576 ◽  
Author(s):  
V.R. Kulli ◽  
Branden Stone ◽  
Shaohui Wang ◽  
Bing Wei
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Topological Indices ◽  
Zagreb Indices ◽  
Polycyclic Aromatic

AbstractMany types of topological indices such as degree-based topological indices, distance-based topological indices, and counting-related topological indices are explored during past recent years. Among degree-based topological indices, Zagreb indices are the oldest one and studied well. In the paper, we define a generalised multiplicative version of these indices and compute exact formulas for Polycyclic Aromatic Hydrocarbons and jagged-rectangle Benzenoid systems.

scholarly journals Content of Polycyclic Aromatic Hydrocarbons in the Road Asphalt in Olecko

2008 ◽  
Vol 6 (1) ◽  
pp. 255-261
Author(s):  
Ireneusz Chrząścik ◽  
Magdalena Szymalska ◽  
Mariusz Kluska
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Dry Mass ◽  
Negative Influence ◽  
Road Asphalt ◽  
Carcinogenic Activity ◽  
The Road ◽  
Road Users ◽  
Polycyclic Aromatic

Przedstawiono ocenę zawartości wielopierścieniowych węglowodorów aromatycznych (WWA) w asfaltach drogowych wyprodukowanych w różnych latach na terenie Polski. Zwrócono uwagę na zagrożenia wynikające podczas kontaktu z asfaltem Estimation of Polycyclic Aromatic Hydrocarbons (PAHs) in the road asphalt produced in different years in Poland was presented. Attention was paid especially to risks resulting from contact with asphalt and negative influence on life and health of road users. All 5 hydrocarbons recognized by WHO as compounds with carcinogenic activity and have been found in investigated samples, t t e results are situated between 0.1 and 60 pg/kg of dry mass. Simultaneously, it is necessary to emphasize, that asphalt consist of 90 % of aggregates and 10% ofbinder which contains these analyzed compounds.

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