John L. Pearce

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15 20 25 2 ABSTRACT This paper presents the estimated response of three pollutants, ozone (O 3), particulate matter ≤ 10 µm (PM 10), and nitrogen dioxide (NO 2), to individual local meteorological variables in Melbourne, Australia, over the period of 1999 to 2006. The meteorological-pollutant relationships have been assessed after controlling for long-term(More)
29 The influence of synoptic-scale circulations on air quality is an area of increasing interest to 30 air quality management in regards to future climate change. This study presents an analysis 31 where the dominant synoptic " types " over the region of Melbourne, Australia are determined 32 and linked to regional air quality. First, a self-organising map(More)
BACKGROUND Recent interest in the health effects of air pollution focuses on identifying combinations of multiple pollutants that may be associated with adverse health risks. OBJECTIVE Present a methodology allowing health investigators to explore associations between categories of ambient air quality days (i.e., multipollutant day types) and adverse(More)
BACKGROUND Development of exposure metrics that capture features of the multipollutant environment are needed to investigate health effects of pollutant mixtures. This is a complex problem that requires development of new methodologies. OBJECTIVE Present a self-organizing map (SOM) framework for creating ambient air quality classifications that group days(More)
BACKGROUND Several studies have identified the association between ambient temperature and mortality; however, several features of temperature behavior and their impacts on health remain unresolved. We obtain daily counts of nonaccidental all-cause mortality data in the elderly (65 + years) and corresponding meteorological data for Melbourne, Australia(More)
This disposable 25-gauge cannula has a specially designed distal segment which facilitates crystalline lens nucleus hydrodissection or viscodissection. The injection of a fluid or viscous material creates a cleavage plane between the nucleus and cortex or capsule, thus facilitating extraction of the nucleus. The flattened, smooth, cannulated tip allows(More)
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