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- W2364491160 abstract "Objective To determine and evaluate the air quality in the enclosed air-condition environment.Methods A total number of 9 enclosed working places in a same air-condition system were sampled. Temperature and humidity, the concentrations of CO 2, CO, formaldehyde, IP ,BT and HS were detected by standard examination methods; Air negative-ion was detected by detection instrument; Radon concentration in air was measured by scintillation flask method.Results In these sampled places, the average room temperature was 23.1℃, the average relative humidity was 81.5% and the wind speed was 0.13 m/s. The average concentrations of CO 2, CO, formaldehyde, IP and BT were 0.048%, 1.8 mg/m 3, 0.052 mg/m 3, 0.084 mg/m 3 and 127 CFU/m 3 respectively, but HS was not detected. The average concentration of negative-ion was 203/cm 3, and the average concentration of Radon was 4.9 Bq/m 3. Conclusion The micro-climate in enclosed air-condition environment was stable and comfortable. The concentrations of main pollutants, CO 2, CO, formaldehyde, IP,BT,HS and radon, met the National Hygiene Standard. The concentration of negative-ion was lower than that of out-room." @default.
- W2364491160 created "2016-06-24" @default.
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- W2364491160 date "2002-01-01" @default.
- W2364491160 modified "2023-09-27" @default.
- W2364491160 title "Investigation and Assessment of Air Hygiene Quality in Enclosed Air-condition Environment" @default.
- W2364491160 hasPublicationYear "2002" @default.
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