2017 No https://pubmed.ncbi.nlm.nih.gov/29037301/ Fan, X-J Asia Exposure Study Modeling Students Middle/Jr High (6-8) Humidity Particulate Matter (PM) Ozone (O3) Nitrogen Dioxide (NO2) Fungi Respiratory symptoms Asthmatic symptoms Dampness Particulate matter (PM) Respiratory infections School students The prevalence of current wheeze, daytime attacks of breathlessness, nocturnal cough, nocturnal respiratory symptoms and RI was respectively 4.4%, 18.7%, 11.6%, 3.6% and 32.3%. Environmental tobacco smoke (ETS) at home was associated with daytime
attacks of breathlessness (OR 1.41), nocturnal cough (OR 1.41) and RI (OR 1.26). Redecoration or indoor painting at home was associated with wheeze (OR 2.02), daytime
attacks of breathlessness (OR 1.57) and nocturnal symptoms (OR 1.83). Dampness or mould at home was associated with daytime attacks of breathlessness (OR
1.68), nocturnal cough (OR 1.68) and RI (OR 1.69). Particulate matter of diameter
6 10 microns (PM 10 ) in the classroom was associated with nocturnal cough (OR
1.20/10 lg/m 3). PM10 outside school was associated with daytime attacks of breathlessness (OR 1.07/10 lg/m 3)and nocturnal cough (OR 1.13/10 lg/m 3). Indoor carbon
dioxide, a marker of poor ventilation (OR 1.52/1000 parts per million), and relative humidity (RH) (OR 1.33/ 10%) were associated with nocturnal cough.
CONCLUSION: Dampness, redecoration and ETS at home, as well as poor ventilation flow, and high RH and PM 10 concentration at school may influence respiratory health.