Fig. 4From: Assessment of personal exposure to particulate air pollution: the first result of City Health Outlook (CHO) projectThe effects of sociodemographic, travel behavior, living conditions, and health status on personal PM2.5 exposure. Each dot on the black lines represents quantile regression coefficients and grey shadings indicate 95% confidence intervals as a function of the quantile level. The red horizontal solid and dashed lines depict the OLS coefficient estimates and the associated 95% confidence intervals, respectivelyBack to article page