We surveyed the concentrations of PM10, O3, and bioaerosol in public facilities including restaurants, offices, and private academies in Chung-Nam province area. During 3 months (from August 30, 2005), the bioaerosol concentrations were measured by a single stage air cascade sampler using the inertia collision catching method for the flux of 28.29 ℓ/min. The mean values were measured as 101.1㎍/㎥ for PM10 and 12.4 ppb for O3. The concentrations of colony for bacteria and fungi were 464 and 287 CFU/㎥ in restaurants, 223 and 271 CFU/㎥ in offices, and 259 and 107 CFU/㎥ in private academics. It is thus suggested that the regulation of indoor air conditions should be amended to control the quantity of bioaerosol in public facilities.

The concentrations of HCHO(formaldehyde), PM10(particulate matter), CO₂(carbon dioxide) and TBC(total bacteria counter) distribution in schools(Chung-Nam Area) were examined, and the results were compared with the recommended criterion of the administration law of indoor air. The subjects were an elementary school, a middle school and a high school in Chung-Nam area, and the concentration of TBC was examined by Single Stage Air Cascade Sampler, which applied the inertia collision catching method of 28.29L/min(flux) during 5 months from March, 2007 to July, 2007. The instrument(LD-3B, SIBATA Company)was used to examine PM10, by a light scattering method and a light transmission method. The instrument(Airboxx(KD Engineering) was used to examine CO₂. The instument(Z300XP(Environmental sensor)was used to examine HCHO. The result indicated that the PM10 average concentrations of the surveyed classrooms were 49 μg/m3 in Spring and 59 μg/m3 in Summer. The CO₂ average concentration of the surveyed schools were 576 ppm in the classroom and 527 ppm in the stateroom. The average concentration of TBC were 729 CFU/m3 in an elementary school, 401 CFU/m3 in a middle school, 381 CFU/m3 in a high school. The HCHO average concentration of the surveyed schools were 0.03 ppm in the classroom, 0.02 ppm in the stateroom.