evaluation of bio-aerosols and aerosol concentration in the rural household carpet weaving workshops of isfahan

background: most rural carpet weaving workshops are part of the house and sanitary conditions of the workshop not only affect the weaving but also other family members this study aimed to determine the aerosol and bioaerosols concentration in the rural household carpet weaving workshops in isfahan. methods: in this this study is a cross - sectional study and was performed in 92 rural household carpet weaving workshops in isfahan were evaluated . home carpet weaving workshops rulers’ esfahan.   aerosol samples were collected by the personal sampling pump and , iom personal sampler. b ioaerosols samples wer e collected by bacterial sampler instrument. collected samples were transferred delivery to laboratory for analysis .data analyzed by spss software. findings: the average m ean aerosol and bioaerosol s concentration in workshops was 2.4±1.6 mg/m 3 and bioaerosol concentration was 430 ±332 colony/m3. t here was a direct relationship but no significant statistically significant relationship between aerosol and bioaerosols concentration. there was significant correlation between m ean concentration of bioaerosol s and the presence of animals and birds in the yard ( p=0.03). conclusion: mean of dust concentration was not higher than th e threshold limit value of total dust (10mg/m 3 ) , but considering the residential environm ent of the workplaces and the existing of different pathogen and potentially pathogens bioaerosols in such workshops , they considere d as risky environment for workers and residents .