A study on the correlation of the indoor and outdoor particulate pollution levels in the university premises

Abstract

Abstract. In recent years, haze weather happens frequently. PM2.5 and PM10 are the main factors that affect the haze weather, so they deserve to be studied. The study will help to propose better measures to improve the indoor air quality. This paper is to study the relevance of indoor and outdoor concentrations of particulate matter, the daily variation of indoor particulate matter concentrations and the horizontal distribution law of particulate pollution in campus buildings. Through the study, it can be seen that outdoor particulate pollutants is the main source of indoor particulate matter and there is no significant difference in the average particle concentration between the daytime and night.

Determination of Indoor Air Quality in University Student Canteens

“…The 50 percentage of number of samples is higher than the standard of PM2.5 in WHO regulation (<25 µg / m 3 ). Zhu (2015) examined the relationship between indoor and outdoor particulate matter concentrations and suggested better measures to improve indoor air quality. Zhu determined that the concentration of particulate matter in campus underground spaces and canteens is quite high.…”

“…Zhu even determined that the concentration of particulate matter in the external environment can reach two to three times. Therefore, researcher concluded that uncirculated air sometimes increases PM2.5 concentration and cooking can be a new source of pollution to some extent [24].…”