Wintertime size distribution of polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) in the urban environment: Street- vs rooftop-level measurements

Particle-size distribution of airborne poly- and perfluorinated alkyl substances

“…Similar to our study, Harada et al (2006) observed PFOS related to mid-size particles, however, the maximum PFOS mass fractions appears to be shifted to coarser particle sizes of roughly 2.5-5 lm (also note the different cut-off diameters in both studies). In contrast to PFOS, maximum mass fractions for other legacy persistent organic pollutants (POPs) such as polychlorinated dibenzo dioxins and -furans, polycyclic aromatic hydrocarbons, organochlorine pesticides or brominated diphenyl ethers were usually observed in particles smaller than 1.3 lm (Kaupp and McLachlan, 2000;Oh et al, 2002;Chrysikou et al, 2009;Lammel et al, 2010;Zhang et al, 2012).…”

Polycyclic aromatic hydrocarbons and their oxygenated derivatives in the urban atmosphere of Athens

“…PM 10 is the average mass concentration of particles with aerodynamic diameter ≤10 m (g m −3 ) measured by our on-site Particle Analyser using Beta-Attenuation (FH62I-R, ESM-Thermo Andersen). The size distribution of PAHs had been the subject of recent articles [41][42][43][44]. Particulate matter in fraction >7.5 m contributed approximately 5.2% to total PAHs concentration at an urban roadside site in Thessaloniki in wintertime [44], whereas the contribution of PM in fraction >7 m ranged from 4.7% (winter) to 11.9% (summer) at an urban site in Beijing [41].…”

“…The size distribution of PAHs had been the subject of recent articles [41][42][43][44]. Particulate matter in fraction >7.5 m contributed approximately 5.2% to total PAHs concentration at an urban roadside site in Thessaloniki in wintertime [44], whereas the contribution of PM in fraction >7 m ranged from 4.7% (winter) to 11.9% (summer) at an urban site in Beijing [41]. Moreover, it has been found that PAHs with 3-4 rings that are mainly found in the gas phase are distributed over 10 m and those PAHs with 5-6 rings are found in the accumulation mode [43].…”

Influence of Air Pollution and Soil Contamination on the Contents of Polycyclic Aromatic Hydrocarbons (PAHs) in Vegetables Grown in Urban Gardens of Sao Paulo, Brazil

“…Some of these compounds have toxic, mutagenic, and/or carcinogenic properties (Abdel-Shafy and Mansour, 2016). Pyrogenic PAHs in urban centres are mainly derived from incomplete combustion in motor vehicles and are distributed as gases and ultrafine particles (Marr et al, 2006;Chrysikou et al, 2009). In Sao Paulo, atmospheric pollutants result mainly from the vehicular fleet of 8 million vehicles (CETESB Sao Paulo State Environmental Agency, 2015a;Martins Pereira et al, 2017).…”