Abstract
We investigated on the indoor pollution generated from six different heating appliances (three kerosene heaters of different types, town and propane gas heaters and an electric heater) and smoking in the model room (area: 20 m2, capacity: 45 m3). Each experiment was conducted under the different 4 type of ventilation conditions described below. 1: Fan off, Door closed, 2: Fan off , Door 45°-open, 3: Fan off, Door 10°-open and 4: Fan on, Door closed. Each heater and smoking were run in the model room for 3 hours, and the concentration of each pollutant was measured for 9 and 6 hours. We measured NO, NO2, CO, CO2, HCHO, suspended particulate matter and polycyclic aromatic hydrocarbons (PAH) as indoor pollutants of this study. From these results, we obtained relatively high concentration of NO2, CO2, and HCHO from using all heaters without electric heater under the non-ventilation condition. The concentrations of suspended particulate matter and PAH also increased using kerosene- fueled heater. In case of smoking, the concentration of NO, CO, CO2, HCHO, suspended particulate matter and PAH are increased under the non-ventilation condition. On the other hand, the concentration of these chemicals significantly decreased under the ventilation condition. From these results, ventilating operations were shown to be an effective operation for the decreasing of indoor pollution.
