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OVERALL MASS TRANSFER COEFFICIENT FOR POLLUTANT EMISSIONS FROM SMALL WATER POOLS UNDER SIMULATED INDOOR ENVIRONMENTAL CONDITIONS
Citation:
Guo*, Z AND N. Roache. OVERALL MASS TRANSFER COEFFICIENT FOR POLLUTANT EMISSIONS FROM SMALL WATER POOLS UNDER SIMULATED INDOOR ENVIRONMENTAL CONDITIONS. ANNALS OF OCCUPATIONAL HYGIENE 47(4):279-286, (2003).
Description:
Small chamber tests were conducted to experimentally determine the overall mass transfer coefficient for pollutant emissions from still water under simulated indoor-residential or occupational-environmental conditions. Fourteen tests were conducted in small environmental chambers for six test compounds that cover a Henry's constant range from 3.3 3x10^(-7) to 3.67 x10^(-3)(atm m^3/mol). The estimated overall liquid-phase mass transfer coefficients varied from 1. 8 x10^(-6) to 5.7x10^(-3) m/h. The liquid-phase mass transfer coefficients for still water were 9.78x10^(-3) m/h for the reference compound (oxygen) and 5.00x10^(-3) to 6.04x10^(-3) m/h for the test compounds. An empirical model is proposed to estimate the overall mass transfer coefficient for predicting the pollutant emissions from still water (e.g., pools and puddles) in the indoor environments in the absence of experimental data.