Indoor infiltration of smoke and other pollutants

Facilitator: Dr Bill Trompetter – Indoor Air SIG Chair

Time: 1 pm – 3 pm AEST

Infiltration of outdoor smoke into homes has become very topical recently, especially when bushfire smoke was blanketing parts of Australia, and public were being advised to stay indoors for some protection. A similar situation occurs in many southern Australian and New Zealand, towns and cities, where outdoor smoke levels frequently exceed air quality guidelines during cold calm winter nights. In this AIR TALK, four presentations collectively address the topic of infiltration of outdoor air pollution into buildings and homes, indoor exposures and deposition onto indoor surfaces, and finally a look into mitigation measures.

No.Presentation TitleSpeaker
1Winter air quality and outdoor-indoor air exchange in 85 homes in New Zealand’s most polluted town. View abstract.Dr Ian Longley Principal Air Quality Scientist, NIWA, New Zealand
2Sources of airborne particulate matter in a sample of New Zealand homes and the impact of ventilation/infiltration. View abstract.Dr Perry Davy Senior Atmospheric Chemist, GNS Science, New Zealand
3Infiltration and Surface Sampling Methodology for Assessing Indoor Deposition of Bushfire Ash. View abstract.Brad Prezant Chief Scientific Officer ValidAir Sciences, Australia
4The use of portable HEPA air cleaners to improve residential indoor air quality during biomass burning events. View abstract.Dr Amanda Wheeler Senior Research Fellow, Australian Catholic University, Australia

Dr Ian Longley is the Principal Air Quality Scientist at NIWA – the National Institute for Atmospheric Research (NIWA) – in Auckland, New Zealand. He joined NIWA in 2007 and has led the “Impacts of Air Pollutants” research programme since 2012. He has a degree in Engineering and a PhD in Atmospheric Physics, both from the University of Manchester. His expertise covers exposure to emissions from road traffic and domestic heating, and citizen participatory research.

Dr Perry Davy is a Senior Atmospheric Chemist and Lead Scientist of the Air Particulates Laboratory at the Institute of Geological and Nuclear Sciences (GNS Science) in Wellington, New Zealand. He has been researching the composition and sources of air pollution in NZ and overseas for more than 20 years. Perry’s work has encompassed all aspects of atmospheric particulate matter characterisation and source apportionment, from research monitoring program design, execution and reporting, to providing laboratory services, expert data analytics and reporting to external clients and collaborators. He has an MSc degree in Organic Chemistry (Auckland University) and a PhD in Atmospheric Chemistry (Victoria University of Wellington).

Brad Prezant, MSPH, MBA, CAQP, CIH, COH, CPE (CPE retired 2012) is an evidence-based public health scientist, occupational epidemiologist, and occupational hygienist. The majority of his career has been spent as a consultant in private practice; his University experience includes full-time employment and faculty status at several universities (University of Washington, Seattle, WA, USA, and Massey University, Wellington, NZ), where he initiated as well as contributed to occupational health research. He is currently employed as Chief Scientific Officer at ValidAir Sciences, Pty., Ltd., in Melbourne, Australia.

Dr Amanda Wheeler is a Senior Research Fellow in the Behaviour, Environment and Cognition Research program based at the Mary MacKillop Institute for Health Research, Australian Catholic University. She is part of the team investigating the effects of the built environment, air pollution and noise on the cognitive health of older adults. Her other research interests include evaluating interventions to improve indoor air quality that is impacted by biomass smoke. Her published research interests include personal exposures to air pollution from residential and ambient sources, tracking activity patterns, and understanding the intra-urban variability of air pollutants using GIS tools and developing Land Use Regression (LUR) models. She has experience with a range of environmental pollutants including particulate matter, volatile organic compounds, phthalates and polycyclic aromatic hydrocarbons. She is also an Honorary Fellow at the University of Tasmania and The University of Melbourne.


In consideration of the international Coronavirus pandemic and the impact it is having economically, CASANZ has reduced the AIR TALKS 2020 original pricing by up to 30%, to support our members and the wider air quality and environment community.

AIR TALKS 2020 SPECIAL PRICINGStandard RegistrationCASANZ MemberCorporate MemberRetired/Student Member
Full Event (all 8 AIR TALKS)A$250A$175A$560A$85
Single Event (1 AIR TALK )A$75A$50A$160A$25

Corporate allows for up to 4 individuals.
No further discounts apply. All prices include GST. New Zealand Members can pay in NZ$.

Full event attracts 8 CAQP CPD points or 1 point per AIR TALK.


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