The goal of this study was to provide basic data for arrangement of management in museum environment. We investigated characteristics of distribution on indoor air pollutants at exhibition halls and storages in museums between July and August, 2007. The monitoring carried out at three cultural sites, Pusan, Daejeon and Kyungjoo which is possessed their own exhibition hall and storage in Museums. We adopt the several pollutants for this survey such as PM10, PM2.5 CO2, Formaldehyde, TBC, CO, NO2, Rn, VOCs, O3 and followed the standard method of Ministry of Environment, Korea for sampling and analysis, respectively. The results of this survey revealed that average concentration of PM10 and PM2.5 in storages were 117.3μg/m3 and 92.6μg/m3, respectively. The average concentration in storages of gases pollutants and microorganism such as CO2, Formaldehyde, NO2, Rn, TVOC, O3, and TBC showed as: 788.8ppm, 30.7μg/m3, 0.4ppm, 6.4ppb, 1.3pCi/ℓ, 1,374.9μg/m3, 2.4ppb, and 119.4cfu/m3, respectively. In addition, average concentration of PM10 and PM2.5 in exhibition halls were 49.5μg/m3 and 56.1μg/m3, respectively. The average concentration in exhibition halls of gases pollutants and microorganism such as CO2, Formaldehyde, NO2, Rn, TVOC, O3, and TBC showed as: 475.2ppm, 94.1μg/m3, 0.3ppm, 12.4ppb, 0.3pCi/ℓ, 1,179.1μg/m3, 5.2ppb, 2.4ppb, and 24.8cfu/m3, respectively.