Fig. 4.
Associations of mortality from non-accidental causes (a), CVDs (b), non-malignant RDs (c), and lung cancer (d) with percentiles of joint exposure of PM10, PM2.5, SO2, and NO2. The shaded regions are 95% CIs (N = 37,442). Models were adjusted for age, sex, BMI, level of education, income, occupational exposure, physical exercise and status of marital, smoking and drinking. Abbreviations: CVDs, cardiovascular diseases; CI, confidence interval; HR, hazard ratio; NO2, nitrogen dioxide; PM10, particulate matter with aerodynamic diameter ≤10 μm; PM2.5, particulate matter with aerodynamic diameter ≤2.5 μm; RDs, respiratory diseases; SO2, sulfur dioxide.