TABLE 2 Distribution of all exposure estimates (annual averages of ambient air pollutants and traffic indicators), at participants residential addresses in each cohort
ExposuresECRHSEGEANSHDSALIASAPALDIA
NMeanIQRNMeanIQRNMeanIQRNMeanIQRNMeanIQR
PM2.5 μg·m−3183015.97.034215.32.07519.51.558017.81.772916.81.1
PM2.5 absorbance ×10−5 m−115402.01.61482.11.37511.00.35801.40.47291.90.5
PM10 μg·m−3183025.89.734225.14.075115.71.958026.72.172923.22.3
Coarse PM# μg·m−3183010.34.73429.43.37516.40.85809.41.67296.51.9
NO2 μg·m−3385928.918.756827.414.784422.410.058027.68.1176427.07.7
NOx μg·m−3385950.534.556846.727.984437.517.158044.220.7176444.815.2
Traffic intensity on nearest road249248075509568663366678441239058016420169732073876
Traffic load on nearest major  road+26871.451.675681.371.588440.2705800.720.3216710.941.42
NO2 back-extrapolated to first  spirometry μg·m−3NA§NA§NA§NA§NA§NA§84126.311.258036.014.0176247.712.3
PM10 back-extrapolated to first  spirometry μg·m−3NA§NA§NA§NA§NA§NA§74822.02.658047.713.672646.24.0
NO2 back-extrapolated to second  spirometry μg·m−3385934.223.056832.117.5NAƒNAƒNAƒNAƒNAƒNAƒ176431.08.0
PM10 back-extrapolated to  second spirometry μg·m−3138827.18.414827.05.3NAƒNAƒNAƒNAƒNAƒNAƒ72937.84.3
  • IQR: interquartile range; PM2.5: particulate matter with a diameter of ≤2.5 μm; PM10: particulate matter with a diameter of ≤10 μm. #: fraction of PM2.5 to relative to PM10; : cars per day; +: traffic load on nearest major road within a 100 m buffer presented in thousands of car-km driven per day; §: no complete exposure back-extrapolation to first spirometry available; ƒ: no back-extrapolation applied as time point of second spirometry coincides with time point of ESCAPE monitoring campaign.