Volatile Organic Compounds Concentration in Northern Cold Area University in Harbin, China

People pay great attention on the indoor air pollution of public building now. Indoor environment of six university buildings (library, laboratory, classroom, dormitory, computer room and office) were measured with gas detector from March to May. The concentrations of total volatile organic compounds (VOCs) of these sites meet the "Indoor air quality standards "requirements of China. The average VOCs concentration of student dorm in eight hours is the highest. The VOCs level is higher in morning, and decreased rapidly in the afternoon. It is expected the existence of computer and printer is also contributed to indoor VOCs when the I/O values of teacher office and computer lab are higher. The ventilation, season variation and outdoor air quality have a direct impact on indoor VOCs level.