Polycyclic aromatic hydrocarbons in ambient air particles in the city of Las Palmas de Gran Canaria

Abstract

Concentration levels, seasonal variation and winter/summer ratios of 11 polycyclic aromatic hydrocarbons (PAHs) in the TSP of Las Palmas de Gran Canaria city were determined. The study area is under the influence of heavy traffic (80000 vehicles/day). Pyr/BaA, Pyr/Flt, B(ghi)P/I(cd)P and B(b+k)F/B(ghi)P ratios were calculated; the values of these two last suggest a strong influence of diesel fuel burning. Levels of TSP and TSP-bound PAHs were also established. The hazard potential of PAHs in terms of carcinogenicity of BaP is acceptable. Potential risk on the basis of TEFs is also studied.

Seasonal Variation of n-Alkanes and Polycyclic Aromatic Hydrocarbon Concentrations in PM10 Samples Collected at Urban Sites of São Paulo State, Brazil

“…The ratio between them was from 0.5 and 1. Pristane can be found in biological material with pristane/ phytane ratio >> 1 (Alves 2008 (Castellano et al 2003;Fang et al 2004;Kalaitzoglu et al 2004), and in previous studies at the SPA site, BbF and Chr were the most abundant PAHs found (Cecinato et al 1997;Vasconcellos et al 2010).…”

Seasonal effect and source apportionment of polycyclic aromatic hydrocarbons in PM2.5

“…The BaP eq of individual B[a]P was more than half of that shown by the total PAHs. Other studies also showed that the carcinogenic potency of B[a]P is in the range of 27e67% of the carcinogenic activity of total PAHs (Petry et al, 1996;Castellano et al, 2003). Thus, B[a]P has been regulated in many countries and has a set guideline value.…”

Gas–particle concentration and characterization of sources of PAHs in the atmosphere of a suburban area in Athens, Greece

“…PAHs occur in both vapour and particulate phase in the atmosphere; both types can come into contact with living beings either externally (through the skin) or internally (through the lungs or ingestion) and this makes them hazardous or even toxic species [4,11]. The partitioning of a given compound between the particulate and the gas-phase depends on the ambient temperature, the nature (i.e.…”