Objectives To understand the pollution of inhalable particle matter at public places in Nanchang and analyze the regular pattern of inhalable particle development, to offer scientific supports for improving indoor air quality and reducing the harm of inhalable particle.
Methods According to the Technical Rule of Health Monitoring for Public Places (GB/T 17220-1998), the concentration of inhalable particulate matter, temperature and relative humidity of indoor air at public places were monitored, and SPSS 20.0 software was used for data analysis.
Result The average concentration of inhalable particle matter in 864 air samples was significantly different in different years, seasons and industries. It was revealed that there is a significantly negative correlation between the concentration of inhalable particle matter and temperature in indoor air.
Conclusions The management of ventilation and air conditioning system in public places should be strengthened; more attention should be paid to timely cleaning screen pack and standardizing the cleaning process. Meanwhile, the prevention and control of indoor environment pollution in public places should be strengthened by relevant department of the government.
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