Epistemic assessment of radon level of offices in Hong Kong

An energy impact assessment of ventilation for indoor airborne bacteria exposure risk in air-conditioned offices

“…The probabilities of unsatisfactory IAQ of an office at indoor CO 2 exposure concentrations of 800, 1000 and 1200 ppmv were 0.54, 0.63 and 0.70 for the 'Excellent' IAQ objective, and 0.21, 0.28 and 0.35 for the 'Good' IAQ objective, respectively. These data would be useful for some epistemic IAQ assessments in determining the pre-assessment failure probability of an indoor environment [31][32][33].…”

Evaluation of professional choice of sampling locations for indoor air quality assessment

“…where, F i h i (ppm) is the sample-time average CO 2 concentration at a sampling location i in the time domain t (h) between the start time t a (h) and the end time t b (h) of a measurement [19][20][21][22],…”

“…Areas like technical difficulties encountered in the scheme implementation; amount of resources and manpower in terms of the sophisticated knowledge of application, calibration and regular maintenance of the appliances, interpretation of the data, on-site operation of the equipment; and numbers of sampling methods with various sampling periods and sampling point densities were all explored [17][18][19][20][21][22][23]. The sampling location selection in a large indoor space would contribute to the assessment results of the spatial average pollutant concentration [23].…”

“…The sampling location selection in a large indoor space would contribute to the assessment results of the spatial average pollutant concentration [23]. Although selection of the 'representative' locations for an assessment would rely on professional judgment of the assessors, uncertainties of the assessment results due to the assessors were not fully addressed in some IAQ assessments [9,[14][15][16][17][18][19][20][21][22][23].…”

State-space dynamic model for estimation of radon entry rate, based on Kalman filtering

“…for a question of substantial practical interest which is tackled in many published papers from other viewpoints, see e.g. Groves-Kirkby et al (2006) and Wong et al (2006). 5.…”