Atmospheric polycyclic aromatic hydrocarbons in the urban environment: Occurrence, toxicity and source apportionment

Mishra, Nitika, Ayoko, Godwin A., & Morawska, Lidia (2015) Atmospheric polycyclic aromatic hydrocarbons in the urban environment: Occurrence, toxicity and source apportionment. Environmental Pollution, 208(Part A), pp. 110-117.

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Abstract

Polycyclic Aromatic Hydrocarbons (PAHs) represent a major class of toxic pollutants because of their carcinogenic and mutagenic characteristics. People living in urban areas are regularly exposed to PAHs because of abundance of their emission sources. Within this context, this study aimed to:

(i) identify and quantify the levels of ambient PAHs in an urban environment;

(ii) evaluate their toxicity; and

(iii) identify their sources as well as the contribution of specific sources to measured concentrations.

Sixteen PAHs were identified and quantified in air samples collected from Brisbane. Principal Component Analysis – Absolute Principal Component Scores (PCA- APCS) was used in order to conduct source apportionment of the measured PAHs. Vehicular emissions, natural gas combustion, petrol emissions and evaporative/unburned fuel were the sources identified; contributing 56%, 21%, 15% and 8% of the total PAHs emissions, respectively, all of which need to be considered for any pollution control measures implemented in urban areas.

Impact and interest:

2 citations in Scopus
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2 citations in Web of Science®

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ID Code: 91531
Item Type: Journal Article
Refereed: Yes
Keywords: PAHs, urban air, toxicity, diagnostic ratios, source apportionment, traffic emissions
DOI: 10.1016/j.envpol.2015.08.015
ISSN: 0269-7491
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > OTHER CHEMICAL SCIENCES (039900) > Environmental Chemistry (incl. Atmospheric Chemistry) (039901)
Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Atmospheric Aerosols (040101)
Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > ENVIRONMENTAL SCIENCE AND MANAGEMENT (050200) > Environmental Monitoring (050206)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ENVIRONMENTAL ENGINEERING (090700) > Environmental Engineering not elsewhere classified (090799)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 04 Jan 2016 06:31
Last Modified: 07 Jan 2016 05:54

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