Estimation of bioaerosols in work environments | Ocena bioaerosolov v delovnih prostorih

English. Bioaerosols were evaluated in different places at the faculty and in the health centre. Mas-100 Air Sampler was used for bioaerosol collection. Average bacterial and fungal concentrations at the faculty were 423±842 cfu/m3 and 142±374 cfu/m3, respectively. These data together with data of moulds identification indicated that only 2 indoor environments among 26 examined places at the faculty contained unacceptable bioaerosols. Statistically significant correlation was found between the bacterial concentrations and the numbers of present persons. Average bacterial and fungal concentrations in the health centre were 405±206 cfu/m3 and 73±56 cfu/m3, respectively. Bioaerosols concentrations in the health centre with HVAC system statistically did not differ from the ones obtained at the faculty. As only limited numbers of bioaerosols were examined in the health centre further investigations are necessary to evaluate efficiency of HVAC system.

Slovenian. V različnih prostorih na fakulteti in v zdravstvenem domu smo ocenili bioaerosole. Za vzorčenje bioaerosolov smo uporabili vzorčevalec Mas-100. Na fakulteti je bila v zraku določena povprečna koncentracija bakterij 423±842 cfu/m3 in povprečna koncentracija plesni 142±374 cfu/m3. Glede na rezultate o povprečni koncentraciji bioaerosolov in identifikaciji glavnih rodov plesni sta bila kot neustrezna določena le dva od 26 preiskanih prostorov. Statistično značilna korelacija je bila določena med koncentracijo bakterij in številom ljudi v posameznem prostoru. V zdravstvenem domu je bila povprečna koncentracija bakterij  405±206 cfu/m3 in povprečna koncentracija plesni 73±56 cfu/m3. Koncentracije bioaerosolov določene v zdravstvenem domu, ki ima umeten način prezračevanja (sistem HVAC), se statistično niso razlikovale od koncentracij bioaerosolov na fakulteti. Ker je bilo v zdravstvenem domu vzorčeno le omejeno število bioaerosolov, bi bile nujne dodatne preiskave za ocenitev delovanja sistema HVAC.