Abstract
Personal monitoring (PM) for respirable suspended particulate matter (RSP) of thirty subjects was performed as part of an air pollution health effects study conducted in Houston, Texas. Parallel RSP measurements were performed in the study subjects' homes and two fixed site monitoring stations. The participants' daytime activities were independently recorded by study techicians. These data were used to characterize RSP concentrations in each microenvironment visited by the participants. Four estimates of daytime exposure to RSP were calculated based on two different microenvironmental models, and home and fixed site mean daytime RSP concentrations. These estimates were compared to mean daytime personal exposure from PM. Hourly estimates of exposure were calculated from a microenvironmental model and mean hourly home RSP concentrations and compared to hourly PM data. The results of the study indicate that, as in the case of NO2, it is important to characterize indoor microenvironmental RSP concentrations according to location, sources, and concurrent activities, both qualitatively and quantitatively. Stratification of concentrations according to sources present and self-reported activity can lead to misclassification of exposures. For RSP and, probably, other pollutants with indoor sources and with short exposure integration times, adequate measures of exposure can only be obtained with very detailed and complex microenvironmental models or comprehensive personal monitoring.
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References
ChapinF. S.Jr.: 1974, Human Activity Patterns in the City, John Wiley & Sons, New York, N.Y.
Contant, C. F. Jr., Stock, T. H., Buffler, P. A., Holguin, A. H., and Gehan, B. M.: 1985, ‘Methods of Analysis of Panel Studies of the Acute Health Effects of Air Pollution with Application to the Houston Area Study’, Proceedings of the 78th Annual International APCA Meeting (paper No. 85-32.1), Air Pollut. Control Assoc., Pittsbugh, PA.
ContantC. F., StockT. H., BufflerP. A., HolguinA. H., GehanB. M., and KotchmarD. J.: 1987, ‘The Estimation of Personal Exposures to Air Pollutants for a Community-Based Study of Health Effects in Asthmatics — Exposure Model’, J. Air Pollut. Control. Assoc. 37, 587–594.
Contant, C. F., Stock, T. H., Holguin, A. H., Gehan, B. M., Kotchmar, D. J., Buffler, P. A., and Hsi, B. P.: 1984, ‘Empirical Models for Estimating Individual Exposures to Air Pollutants in Health Effects Study’, Proceedings of the National Symposium on Recent Advances in Pollutant Monitoring of Ambient Air and Stationary Sources, U. S. Environmental Protection Agency (EPA-600/9-84-001), Research Triangle Park, N.C. pp. 206–219.
ConverseP. E.: 1972, ‘Country Differences in Time Use’, in A.Szalai (ed.), The Use of Time — Daily Activities of Urban and Suburban Populations in Twelve Countries, Mouton & Co, The Hague, pp. 145–177.
DockeryD. W. and SpenglerJ. D.: 1981, ‘Personal Exposure to Respirable Particulates and Sulfates’, J. Air Pollut Assoc. 31, 153–159.
FugasM., SegaK., and SisovicA.: 1982, ‘Study of Personal Exposure to Airborne Respirable Particles and Carbon Monoxide’, Environ. Monit. and Assess. 2, 157–170.
HolguinA. H., BufflerP. A., ContantC. F., StockT. H., KotchmarD. J., HsiB. P., JenkinsD. E., GehanB. M., NoelL. M., and ChinM. M.: 1985, ‘The Effects of Ozone on Asthmatics in The Houston Area’, in S. D.Lee (ed.), Evaluation of the Scientific Basis for Ozone/Oxidants Standards, Air Pollut. Control Assoc., Pittsburgh, PA, 262–280.
JuC. and SpenglerJ. D.: 1981, ‘Room-to-Room Variations in Concentration of Respirable Particles in Residences’, Env. Sci. & Technol. 15, 592–596.
KotchmarD. J., StockT. H., HolguinA. H., and BufflerP. A.: 1982, ‘Exposure Estimates for the Houston Area Asthma Study’, Environ. Monit. and Assess. 2, 129–138.
KousistoP.: 1983, ‘Evaluation of the Direct Reading Instruments for the Measurement of Aerosols’, Am. Ind. Hyg. Assoc. J. 44, 863–894.
MageD. T.: 1985, ‘Concepts of Human Exposure Assessment for Airborne Particulate Matter’, Environ. Internat. 11, 407–412.
Morandi, M. T., Stock, T. H., and Contant, C. F.: 1986, ‘Characterization of Indoor Personal Exposures to Respirable Particulate Matter’, Proceedings of the 79th Annual International APCA Meeting (paper No. 86-67.2), Air Pollut. Control Assoc., Pittsburgh, PA.
QuackenbossJ. J., SpenglerJ. D., KanarekM. S., LetzR., and DuffyC. P.: 1986, ‘Personal Exposure to Nitrogen Dioxide: Relationship to Indoor/Outdoor Air Quality and Activity Patterns’, Environ. Sci. Technol. 20, 775–789.
Prichard, H. M., Stock, T. H., and Dattner, S. L.: 1985, ‘Validation of Inhalable Particulate Data by Internal and External Consistency Checks’, Proceedings of the 78th Annual International APCA Meeting (paper No. 85-32.5), Air Pollut. Control Assoc., Pittsburgh, PA.
RepaceJ. L., and LowreyA. H.: 1980, ‘Indoor Air Pollution, Tobacco Smoke, and Public Health’, Science 208, 464–472.
RobinsonJ. P., ConverseP. E., and SzalaiA.: 1972, ‘Everyday Life in Twelve Countries’, in A.Szalai (ed.), The Use of Time — Daily Activities of Urban and Suburban Populations in Twelve Countries, Mouton & Co, The Hague, 114.
SegaK., and FugasM.: 1982, ‘Personal Exposure versus Monitoring Station Data for Respirable Particles’, Environ. Internat. 8, 259–263.
SemG. J., TsurubayashiK., and KatsumoriH.: 1977, ‘Performance of the Piezoelectric Microbalanced Respirable Aerosol Sensor’, Am. Ind. Hyg. Assoc. J. 38, 580–588.
SpenglerJ. D., and SextonK.: 1983, ‘Indoor Air Pollution: a Public Health Perspective’, Science 221, 9–17.
Spengler, J. D., and Soczek, M. L.: 1984, ‘Evidence for Improved Ambient Air Quality and the Need for Personal Exposure Research’, Environ. Sci. Technol. 18: 268A.
SpenglerJ. D., TreitmanR. D., TostesonT. D., MageD. T., and SoczekM. L.: 1985, ‘Personal Exposures to Respirable Particulates and Implications for Air Pollution Epidemiology’, Environ. Sci. Technol. 19, 700–707.
SPSS, Inc.: 1983, ‘SPSSX — Users Guide’, McGraw Hill Book Company, New York, N.Y.
Stock, T. H., Kim, Y. S., Prichard, H. M., and Dattner, S. T.: 1985, ‘An Investigation of Inhalable Particulates in Twleve Houston Homes’, Proceedings of the 78th Annual International APCA Meeting (paper No. 85-30A.4), Air Pollut. Control Assoc., Pittsburgh, PA.
StockT. H., HolguinA. H., SelwynB. J., HsiB. P., ContantC. F., and BufflerP. A.: 1983, ‘Exposure Estimates for the Houston Area Asthma and Runners Studies’, in S. D.Lee, M. G.Mustafa, and M. A.Mehlman (eds.), Advances in Modern Environmental Toxicology, Vol. V, The Biochemical Effects of Ozone and Related Photochemical Oxidants, Princeton Scientific Publishers, Inc., Princeton, N.J., 539–548.
StockT. H., KotchmarD. J., ContantC. F.Jr., BufflerP. A., HolguinA. H., GehanB. M., and NoelL. M.: 1985, ‘The Estimation of Personal Exposures to Air Pollutants for a Community-Based Study of Health Effects in Asthmatics-Design and Results of Air Monitoring’, J. Air Pollut. Control Assoc. 35, 1266–1273.
WHO: 1982, ‘Offset Publication (69)’, Estimating Human Exposure tp Air Pollutants, World Health Organization, Geneva, Switzerland.
YocomJ. E.: 1982, ‘Indoor-Outdoor Air Quality Relationships’, J. Air Pollut. Control Assoc. 32, 500–520.
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Morandi, M.T., Stock, T.H. & Contant, C.F. A comparative study of respirable particulate microenvironmental concentrations and personal exposures. Environ Monit Assess 10, 105–122 (1988). https://doi.org/10.1007/BF00401776
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DOI: https://doi.org/10.1007/BF00401776