bake-out was executed against the newly constructed apartment buildings using two methods to find out the effect of improvement on the indoor air quality and identify the concentration changes in the indoor air by the bake-out method for 3 months after occupancy. from two methods of bake-out executed before occupying, we did not find any reduction effect on the hazardous substances in the indoo...

Emissions from motor vehicles have gained the attention of government agencies. To alleviate air pollution and reduce petroleum demand in China, policy “oil to gas” was vigorously carried out. Qingdao began promote use natural gas (NGVs) 2003. By end 2016, there were 9460 (NG) taxis Qingdao, which accounted for 80% total taxis. An understanding implementation emission reductions is required. Ex...

OBJECTIVE To characterize acetaldehyde and formaldehyde emissions, which are harmful gases to human health and not yet regulated for diesel engines. METHODS Standardized tests were performed in four diesel light duty commercial vehicles, using a frame dynamometer and test procedure FTP-75. The pollutants were analyzed by high performance liquid chromatography. RESULTS Results have shown ace...

Sick building syndrome (SBS) is a condition that afflicts occupants of building, typically workplace, and linked to time spent in the building(Thach et al., 2019). The precise cause for SBS still unknown. However, there are few possibilities believed be such as poor ventilation, bad lighting design, presence mold, fungus formaldehydes which usually found wood furniture. This research paper focu...