Application of recent advances in aerosol sampling science towards the development of improved sampling devices: the way ahead.

This paper reviews the framework that underpins the development of a new generation of personal samplers capable of operating at much lower flowrates that those of the current generation and so capable of being used for exposure assessment not only for 'traditional' occupational populations (i.e., industrial workers) but also for people exposed to aerosols in the ambient atmosphere (including children). The opportunity for this new generation of samplers stems from the availability of very light and compact low-flowrate pumps. The development and deployment of such instruments presents: (a) physical challenges in terms of how to collect particle size fractions in a manner which is consistent with the new particle size-selective sampling criteria, and (b) analytical challenges in terms of how to quantitate the much smaller amounts of collected material that need to be analysed. The paper lays out the physical and analytical scenarios, and points the way forward to how such challenges can be overcome. Work is already in progress in several countries to develop prototype instruments for applications like those described.

[1]  Jean-Francois Fabries,et al.  A NEW INDIVIDUAL RESPIRABLE DUST SAMPLER: THE CIP 10 , 1988 .

[2]  J H Vincent,et al.  The penetration of dust through porous foam filter media. , 1981, The Annals of occupational hygiene.

[3]  F. Stadermann,et al.  Chemical characterization of environmental and industrial particulate samples , 1998 .

[4]  R. Grieken,et al.  Recent advances in the analysis of individual environmental particles. A review , 1995 .

[5]  James H. Vincent,et al.  Semi-empirical model for the aspiration efficiencies of personal aerosol samplers of the type widely used in occupational hygiene. , 1996 .

[6]  John D. Spengler,et al.  Personal exposure to respirable particles: a case study in Waterbury, Vermont , 1984 .

[7]  G. Maldonado,et al.  Impaction model for the aspiration efficiencies of aerosol samplers in moving air under orientation-averaged conditions , 1995 .

[8]  D. Dockery,et al.  Acute respiratory effects of particulate air pollution. , 1994, Annual review of public health.

[9]  J. Vincent,et al.  Exposures to inhalable and "total" oil mist aerosol by metal machining shop workers. , 1996, American Industrial Hygiene Association journal.

[10]  D T Mage,et al.  Personal exposures to respirable particulates and implications for air pollution epidemiology. , 1985, Environmental science & technology.

[11]  J H Vincent,et al.  A new static sampler for airborne total dust in workplaces. , 1985, American Industrial Hygiene Association journal.

[12]  J. Vincent,et al.  Comparison of methods for personal sampling of inhalable and total lead and cadmium-containing aerosols in a primary lead smelter. , 1997, American Industrial Hygiene Association journal.

[13]  James H. Vincent,et al.  Porous plastic foam filtration media: Penetration characteristics and applications in particle size-selective sampling , 1993 .

[14]  J. Schwartz,et al.  Air pollution and daily mortality: a review and meta analysis. , 1994, Environmental research.

[15]  S. Piantadosi,et al.  The ecological fallacy. , 1988, American journal of epidemiology.

[16]  R. Letz,et al.  Estimating human exposure to nitrogen dioxide: an indoor/outdoor modeling approach. , 1983, Environmental research.

[17]  H Kromhout,et al.  A collaborative European study of personal inhalable aerosol sampler performance. , 1997, The Annals of occupational hygiene.

[18]  P. Tsai,et al.  Impaction model for the aspiration efficiencies of aerosol samplers at large angles with respect to the wind , 1993 .

[19]  N. P. Vaughan,et al.  FILTER WEIGHING REPRODUCIBILITY AND THE GRAVIMETRIC DETECTION LIMIT , 1989 .

[20]  J H Vincent,et al.  A new personal sampler for airborne total dust in workplaces. , 1986, The Annals of occupational hygiene.

[21]  J H Vincent,et al.  Occupational exposure to inhalable and total aerosol in the primary nickel production industry. , 1995, Occupational and environmental medicine.

[22]  J H Vincent,et al.  Worker exposures to inhalable and total aerosol during nickel alloy production. , 1996, The Annals of occupational hygiene.

[23]  J H Vincent,et al.  Investigation into the impact of introducing workplace aerosol standards based on the inhalable fraction. , 1996, The Analyst.

[24]  R. J. Sherwood,et al.  Historical Perspectives: Realization, Development, and First Applications of the Personal Air Sampler , 1997 .

[25]  Towards a new method for experimental determination of aerosol sampler aspiration efficiency in small wind tunnels , 1998 .

[26]  S Greenland,et al.  Ecological bias, confounding, and effect modification. , 1989, International journal of epidemiology.

[27]  D. Dockery,et al.  An association between air pollution and mortality in six U.S. cities. , 1993, The New England journal of medicine.

[28]  D Hémon,et al.  Comparison of relative risks obtained in ecological and individual studies: some methodological considerations. , 1987, International journal of epidemiology.

[29]  P.-J. Tsai,et al.  Worker Exposure to Nickel-Containing Aerosol in Two Electroplating Shops: Comparison Between Inhalable and Total Aerosol , 1996 .

[30]  Gurumurthy Ramachandran,et al.  Bayesian analysis for inversion of aerosol size distribution data , 1996 .