This study using a hybrid model linked daily signs
of cough and wheeze with PM2.5 exposure; the odds ratios with an
standard deviation increase in PM2.5 from indoor sources were 1.24
(cough) and 1.63 (wheeze), respectively. Ozone (O3) levels correlated with wheezing, and cough correlated with indoor PM2.5 from
ambient sources. Evidence from a cross-sectional study investigating the prevalence of irritative symptoms and chronic respiratory
symptoms among 109 workers exposed to PM as a result of incense
burning in a temple in Taiwan, and 118 unexposed workers in a
control group, indicated that chronic cough was common in the exposure group