Onshore transport of photochemical smog in the Illawarra region of NSW

R. Hyde, M. Azzi, M. A. Young

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

    Abstract

    The current investigation examined the relationships between ozone, wind direction and IER parameters in the Illawarra region. Moderate and high ozone concentrations in the region usually occurred under north-east to north-northeast winds. From plots of ozone concentration against time three distinct pattern types were identified, characterised mainly by differences in the rate and timing of increase and subsequent decrease in ozone concentration during the day. Smog produced (SP) and Extent of ozone production (E) both increased with time once winds turned onshore, indicating that aged photochemical smog was being transported into the Illawarra area from source regions to the north. Days with the lowest ozone concentrations were the least reactive and showed the least variability in photochemical reactivity. Conversely, high ozone concentrations were associated with both high reactivity and high variability in levels of reactivity.
    Original languageEnglish
    Title of host publicationThinking outside the square
    Subtitle of host publicationproceedings 16th International Clean Air and Environment Conference, 19-22 August 2002
    EditorsMichela Reese
    Place of PublicationChristchurch
    PublisherConference Innovators
    Pages354-359
    Number of pages6
    ISBN (Print)0473094851
    Publication statusPublished - 2002
    EventInternational Clean Air and Environment Conference (16th : 2002) - Christchurch, NZ
    Duration: 19 Aug 200222 Aug 2002

    Conference

    ConferenceInternational Clean Air and Environment Conference (16th : 2002)
    CityChristchurch, NZ
    Period19/08/0222/08/02

    Keywords

    • photochemical smog
    • ozone
    • sea breeze
    • inter-regional transport

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