Sydney particle study: overview and motivations

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dc.contributor.authorKeywood, MDen_AU
dc.contributor.authorGallaby, Ien_AU
dc.contributor.authorCope, Men_AU
dc.contributor.authorBoast, Ken_AU
dc.contributor.authorChambers, SDen_AU
dc.contributor.authorCheng, Men_AU
dc.contributor.authorDunne, Een_AU
dc.contributor.authorFedele, Ren_AU
dc.contributor.authorGillett, Ren_AU
dc.contributor.authorGriffiths, ADen_AU
dc.contributor.authorLawson, Sen_AU
dc.contributor.authorMiljevic, Ben_AU
dc.contributor.authorMolloy, SBen_AU
dc.contributor.authorPowell, Jen_AU
dc.contributor.authorReisen, Fen_AU
dc.contributor.authorRistovski, Zen_AU
dc.contributor.authorSelleck, PWen_AU
dc.contributor.authorWard, Jen_AU
dc.date.accessioned2020-06-11T02:07:31Zen_AU
dc.date.available2020-06-11T02:07:31Zen_AU
dc.date.issued2011-11-15en_AU
dc.date.statistics2020-05-15en_AU
dc.description.abstractStudies of health impacts from atmospheric pollutants suggest that particles are currently one of the most significant pollutants with respect to human mortality and morbidity. However, reduction in particle concentrations through source regulation is challenging due to the large number particle sources (both natural and anthropogenic) present in an airshed, and the wide range of particle sizes and chemical species emitted. Additionally, secondary particles can also make a significant contribution to total particle exposure, particularly in the fine size fraction which is considered to have the largest impact on health. Being generated through photochemical processes (similar to ozone), a reduction in the concentration of secondary particles requires that source regulators also consider the relevant gas-phase precursors to these particles. Climate change projections for NSW suggest significant increases in the frequency of drought, increases in the frequency of hot days and increases in the frequency of high fire risk weather. This has important ramifications for air pollution and health, with atmospheric particle smog severity linked to the frequency of hot, sunny days, and with the highest particle pollution concentrations linked to the presence of bushfire plumes in the Sydney airshed. Particles and ozone are also coupled, with enhanced ozone concentrations often observed on bushfire days and with 50% or greater of fine particle mass potentially of photochemical origin. The development of a long term control strategy for particles in Sydney can be informed through the use of comprehensive three-dimensional simulations of the atmosphere, sources and multi-phase phase chemistry. However the development of such modelling capability requires a good understanding of the contribution made by local and remote particles sources to the total particle exposure within the region. Such understanding requires detailed and high quality data sets. We present here an overview of the Sydney Particle Study, a combined modelling and observation project which included an intensive field campaign of aerosol and aerosol precursor measurements carried out in Sydney during February 2011. We focus our discussion on the field campaign which combined sophisticated measurement techniques to produce a high quality data set of atmospheric composition observations. The campaign was a collaboration 43between CSIRO Marine and Atmospheric Research, NSW Office of Environment and Heritage, Queensland University of Technology and ANSTO. Data collected included criteria pollutant concentrations, aerosol microphysical properties, aerosol chemical composition (as a function of size, integrated over 4 hours and in real time), concentration of volatile organic compounds (integrated over 4 hours and in real time) and radon concentrations. Continuous aerosol size distributions indicated the occurrence of secondary aerosol formation occurring in the afternoons on approximately 50% of the days sampled. Data analysis continues in order to understand the processes driving this secondary formation. © 2011 CSIRO and the Bureau of Meteorology.en_AU
dc.identifier.citationKeywood, M., Gallaby, I., Cope, M., Boast, K., Chambers, S., Cheng, M., Dunne, E., Fedele, R., Gillett, R., Griffiths, A., Lawson, S., Miljevic, B., Molloy, S., Powell, J., Reisen, F., Ristovski, Z., Selleck, P., & Ward, J. (2011). Sydney particle study: overview and motivations. Paper presented at 5th CAWCR Annual Workshop, Melbourne, Victoria, 15-16 November 2011, (pp. 42-43).en_AU
dc.identifier.conferenceenddate16 November 2011en_AU
dc.identifier.conferencename5th CAWCR Annual Workshopen_AU
dc.identifier.conferenceplaceMelbourne, Victoriaen_AU
dc.identifier.conferencestartdate15 November 2011en_AU
dc.identifier.govdoc9520en_AU
dc.identifier.isbn9780643107250en_AU
dc.identifier.issn1836-019Xen_AU
dc.identifier.urihttps://www.cawcr.gov.au/technical-reports/CTR_044.pdfen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9564en_AU
dc.language.isoenen_AU
dc.publisherThe Centre for Australian Weather and Climate Researchen_AU
dc.relation.ispartofseriesCAWCR technical report no. 44;en_AU
dc.subjectNew South Walesen_AU
dc.subjectAustraliaen_AU
dc.subjectParticlesen_AU
dc.subjectPollutionen_AU
dc.subjectEnvironmenten_AU
dc.subjectAir pollutionen_AU
dc.subjectSmogen_AU
dc.subjectMortalityen_AU
dc.titleSydney particle study: overview and motivationsen_AU
dc.typeConference Abstracten_AU
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