PAH air pollution at a Portuguese urban area: carcinogenic risks and sources identification

Slezáková, Klára; Pires, José C.M.; Castro, Dionísia; Alvim-Ferraz, M.C.M.; Delerue–Matos, Cristina; Morais, Simone; Pereira, Maria do Carmo

doi:10.1007/s11356-012-1300-7

Cited by 91 publications

(56 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…2. Total PAHs in aerosols of metropolitan cities around the world: a comparison of present study (∑12 PAHs) (Tokyo, Beijing, Kolkata, Hanoi and Kuala Lumpur) with previous studies (∑14 PAHs-∑17 PAHs) i.e., Madrid (Barrado et al, 2012), Kosetice (EMEP, 2010;Dvorská et al, 2012) Seoul (Park et al, 2002), Istanbul (Hanedar et al, 2014), Oporto (Slezakova et al, 2013), Sapucaia do Sul (Agudelo-Castañeda et al, 2014), Strasbourg (Morville et al, 2011).…”

Section: Seasonal Variations In Pah Concentrationsmentioning

confidence: 70%

Seasonal Trends of Atmospheric PAHs in Five Asian Megacities and Source Detection Using Suitable Biomarkers

Saha

Maharana

Kurumisawa

et al. 2017

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

The most prevalent pollutant, polycyclic aromatic hydrocarbons (PAHs) is now plenteously distributed in the global atmosphere. We recently quantified 36 polycyclic aromatic hydrocarbons (PAHs) associated with aerosols (particulate matter: PM) in five Asian cities: Tokyo (Japan), Beijing (China), Kolkata (India), Hanoi (Vietnam), and Kuala Lumpur (Malaysia). Average atmospheric PAH concentrations (∑12 PAHs-ng m -3 ) increased in the order of Kuala Lumpur (2.99) ≈ Tokyo (3.95) < Hanoi (7.99) << Kolkata (63.5) << Beijing (142.8). The most abundant PAHs in PM samples in these cities were chrysene, benz [a]anthracene, benzofluoranthenes, benzo[a]pyrene, and benzo[e]pyrene. We used the PAH compositions, especially the relative abundances of alkylated PAHs, and hopanes to determine vehicle exhaust-derived PAHs, and levoglucosan as a tracer for biomass burning, especially from wood combustion. Vehicle exhaust contributed to atmospheric PAHs in all cities, indicated by higher ratios of (C 30 17α)/total PAHs and MPAHs/PAHs than coal and wood combustion products. Coal combustion contributed also in winter aerosols in Beijing, indicated by higher abundance of β isomers i.e., 17β21β (H)-C 30 hopane (C 30 17β) and 17β21β (H)-C 29 hopane (C 29 17β) signifying mass use of coal for heating. The ratio of levoglucosan/PAHs was high in Kuala Lumpur and Hanoi, suggesting greater inputs of PAHs from biomass burning there.

show abstract

Section: Seasonal Variations In Pah Concentrationsmentioning

confidence: 70%

Seasonal Trends of Atmospheric PAHs in Five Asian Megacities and Source Detection Using Suitable Biomarkers

Saha

Maharana

Kurumisawa

et al. 2017

Aerosol Air Qual. Res.

View full text Add to dashboard Cite

show abstract

“…Petrogenic PAHs are usually emitted directly to a water body whereas pyrolytic are first emitted into the air (Tobiszewski and Namieśnik, 2012). The sampling site is located near urban centers being the most important PAH pollution sources, the vehicle traffic, an oil refinery and a petrochemical complex, a power plant, an incineration unit, an international shipping port and airport (Slezakova et al, 2013). The highest precipitation in the months before January may have increased the river and urban runoff of petrogenic PAHs in this period (www.ipma.pt, June, 2013).…”

Section: Pah Source Analysismentioning

confidence: 99%

“…volcanic eruptions, forest fires, oil leaks, etc.) anthropogenic sources are the main causes for PAH environmental contamination (Bucheli et al, 2004;Slezakova et al, 2013;Yunker et al, 2002). PAHs may enter the marine environment by river runoff, atmospheric inputs or wet deposition of petroleum or petroleum products (Wolska et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Seasonal patterns of polycyclic aromatic hydrocarbons in digestive gland and arm of octopus (Octopus vulgaris) from the Northwest Atlantic

Semedo

Oliveira

Gomes

et al. 2014

Science of The Total Environment

View full text Add to dashboard Cite

Among organic pollutants existing in coastal areas, polycyclic aromatic hydrocarbons (PAHs) are of great concern due to their ubiquity and carcinogenic potential. The aim of this study was to evaluate the seasonal patterns of PAHs in the digestive gland and arm of the common octopus (Octopus vulgaris) from the Northwest Atlantic Portuguese coast. In the different seasons, 18 PAHs were determined and the detoxification capacity of the spe-cies was evaluated. Ethoxyresorufin O-deethylase (EROD) and ethoxycoumarin O-deethylase (ECOD) activities were measured to assess phase I biotransformation capacity. Individual PAH ratios were used for major source (pyrolytic/petrogenic) analysis. Risks for human consumption were determined by the total toxicity equivalence approach. Generally, low levels of PAHs were detected in the digestive gland and in the arm of octopus, with a predominance of low molecular over high molecular weight compounds. PAHs exhibited seasonality in the con-centrations detected and in their main emission sources. In the digestive gland, the highest total PAH levels were observed in autumn possibly related to fat availability in the ecosystem and food intake. The lack of PAH elimina-tion observed in the digestive gland after captivity could be possibly associated to a low biotransformation capac-ity, consistent with the negligible/undetected levels of EROD and ECOD activity in the different seasons. The emission sources of PAHs found in the digestive gland varied from a petrogenic profile observed in winter to a pyrolytic pattern in spring. In the arm, the highest PAH contents were observed in June; nevertheless, levels were always below the regulatory limits established for food consumption. The carcinogenic potential calculated for all the sampling periods in the arm were markedly lower than the ones found in various aquatic species from different marine environments. The results presented in this study give relevant baseline data for environmental monitoring of organic pollution in coastal areas.

show abstract

“…Sites U1 and U2 were characterized as urban and were situated in the Paranhos district of Oporto city. Previously, Slezakova et al (2011Slezakova et al ( , 2013 demonstrated that vehicular traffic emissions are the main pollution source in this area. Specifically, both sites were situated within a public garden where senior citizens gathered for social activities (i.e., board-games playing, reading, socializing in outdoor areas of coffee houses, etc.).…”

Section: Ufp Collectionmentioning

confidence: 99%

“…Prevailing winds are from west and northwest (Pereira et al, 2007). The important air pollution sources in the respective area are vehicular traffic, an international shipping port, an oil refinery and a petrochemical complex, a power plant, and an incineration unit (Slezakova et al, 2013).…”

Section: Study Area Descriptionmentioning

confidence: 99%

Ultrafine Particles in Ambient Air of an Urban Area: Dose Implications for Elderly

Slezáková

Fonseca

Morais

et al. 2014

Journal of Toxicology and Environmental Health, Part A

View full text Add to dashboard Cite

Due to their detrimental effects on human health, the scientific interest in ultrafine particles (UFP) has been increasing, but available information is far from comprehensive. Compared to the remaining population, the elderly are potentially highly susceptible to the effects of outdoor air pollution. Thus, this study aimed to (1) determine the levels of outdoor pollutants in an urban area with emphasis on UFP concentrations and (2) estimate the respective dose rates of exposure for elderly populations. UFP were continuously measured over 3 weeks at 3 sites in north Portugal: 2 urban (U1 and U2) and 1 rural used as reference (R1). Meteorological parameters and outdoor pollutants including particulate matter (PM10), ozone (O3), nitric oxide (NO), and nitrogen dioxide (NO2) were also measured. The dose rates of inhalation exposure to UFP were estimated for three different elderly age categories: 64-70, 71-80, and >81 years. Over the sampling period levels of PM10, O3 and NO2 were in compliance with European legislation. Mean UFP were 1.7 10 4 and 1.2 10 4 particles/cm 3 at U1 and U2, respectively, whereas at rural site levels were 20-70% lower (mean of 1 10 4 particles/cm 3 ). Vehicular traffic and local emissions were the predominant identified sources of UFP at urban sites. In addition, results of correlation analysis showed that UFP were meteorologically dependent. Exposure dose rates were 1.2-to 1.4-fold higher at urban than reference sites with the highest levels noted for adults at 71-80 yr, attributed mainly to higher inhalation rates.

show abstract

PAH air pollution at a Portuguese urban area: carcinogenic risks and sources identification

Abstract: O PDF relativo ao artigo que solicita, não se encontra disponível em Acesso Aberto. Motivos: O editor não permite o depósito e disponibilização em acesso aberto do PDF que solicita. Para consultar o documento deve aceder ao endereço do editor.

Cited by 91 publications

References 73 publications

Seasonal Trends of Atmospheric PAHs in Five Asian Megacities and Source Detection Using Suitable Biomarkers

Seasonal Trends of Atmospheric PAHs in Five Asian Megacities and Source Detection Using Suitable Biomarkers

Seasonal patterns of polycyclic aromatic hydrocarbons in digestive gland and arm of octopus (Octopus vulgaris) from the Northwest Atlantic

Ultrafine Particles in Ambient Air of an Urban Area: Dose Implications for Elderly

Contact Info

Product

Resources

About