Sulfur Dioxide (SO2) and Nitrogen Dioxide (NO2) Indoor Honai Pollution in Wamena, Papua Province, Indonesia

The use of biomass indoor Honai (traditional house) in Wamena have been conducted for several decades and become a traditional habit of Honai occupants. Since air temperature at night in Wamena Regency is cold the inhabitans burn the Kasuari woods to warm their body. As a result, they continuously inhale the Sulfur Dioxide (SO2) and Nitrogen Dioxide (NO2) and some contaminated air in Honai room daily which may lead to varies illnesses. This study aimed to investigate the SO2 and NO2 contaminated Honai indoor air, record the air contaminated inhalation rate and lung vital capacity among the honai occupants at five villages in Wamena regency. Samples were collected from 15 Honai before and after the honai modification by recording the SO2 and NO2 levels. Likewise, 30 inhabitants of Honai occupants were measured for their lung vital capacity as well as the personal SO2 and NO2 inhalation rate. Sample of SO2 and NO2 were collected used midget impinger technique and concentration measured by using the pararosanilinespectrofotometri. In addition, lung vital capacity was measured use a spirometric whereas personal inhalation was measured by personal inhalation tool. Results implied that, of those five villages showed the mean of NO2 values before honai modification were 4.011 ± 1.138 μg/Nm 3 and after the modification were 0.350 ± 0.201 μg/Nm 3 , respectively. Based on the statistical t -test showed that the decrease in NO2 concentrations was shown with p values of 0.000, or in other words no influence homes honai modification to the decrease of NO2 concentration. Likewise, SO2 concentrations were between 0.650 ± 0.454 before modification and 0.057 ± 0.048 after modification indicated over the standard. The statistical t test showed that a decrease in the concentration of SO2 is shown with p values of 0.000, or no influence honai modification to decrease the SO2 concentration. Index Terms Sulfur Dioxide, Nitrogen Dioxide, Honai modification, Indoor Air Pollution, Inhalation Rate and Lung Capacity.