Sensitivity analysis on the effects of serial correlation on exposure estimates
Technical Report
·
OSTI ID:5467918
Statistical methods of estimating concentration values for use in human exposure estimates have become increasingly more popular because of the complexities in correlating the temporal and spatial concentration variations within microenvironments with the location of people. The number of variables and their associated uncertainty make deterministic models difficult to use. Monte-Carlo simulations of exposure conducted thus far have made no provision for serial correlation effects, and therefore tend to underestimate the highest exposures and overestimate the lowest exposures. The purpose of the sensitivity study is to quantify the factors affecting serial correlation in the indoor microenvironments. Further, the authors investigate in a very preliminary way use of personal exposure monitoring data to infer the value of variables needed to estimate indoor concentrations such as the rates of air exchange, pollutant removal, and pollutant generation. The authors conclude that the use of personal exposure monitoring data to derive rate constants may be useful for order of magnitude estimates.
- Research Organization:
- Environmental Protection Agency, Research Triangle Park, NC (United States). Atmospheric Research and Exposure Assessment Lab.
- OSTI ID:
- 5467918
- Report Number(s):
- PB-91-196022/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
AIR POLLUTION MONITORING
CHALCOGENIDES
ECOLOGICAL CONCENTRATION
HAZARDS
HEALTH HAZARDS
INDOOR AIR POLLUTION
MAXIMUM PERMISSIBLE EXPOSURE
MONITORING
OXIDES
OXYGEN COMPOUNDS
POLLUTION
SAFETY STANDARDS
SENSITIVITY ANALYSIS
SIMULATION
STANDARDS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
AIR POLLUTION MONITORING
CHALCOGENIDES
ECOLOGICAL CONCENTRATION
HAZARDS
HEALTH HAZARDS
INDOOR AIR POLLUTION
MAXIMUM PERMISSIBLE EXPOSURE
MONITORING
OXIDES
OXYGEN COMPOUNDS
POLLUTION
SAFETY STANDARDS
SENSITIVITY ANALYSIS
SIMULATION
STANDARDS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES