Table 5.
Measurement | No. of subjects in child panel study* | No. of subjects in pregnancy panel study* | Description | Measurement point/period |
Geolocation and mobility | 146 | 126 | Smartphone GPS with ExpoApp application installed | 7 days in each study period |
Physical activity | 145 | 148 | Smartphone and Actigraph accelerometer | 7 days in each study period |
NO2 | 154 | 158 | Passive samplers for NO2 installed in the home | 7 days in each study period |
BTEX | 154 | 158 | Passive samplers for BTEX installed in the home | 7 days in each study period |
PM2.5 | 92 | 90 | Active PM2.5 Cyclone pumps (BGI-400–4), carried by participants in backpack and installed in the home | Last 24 hours of each of the two study periods |
Black carbon | 89 | 66 | MicroAthelometer (AE51) for continuous monitoring | Last 24 hours of each of the two study periods |
UV | 69 | 141 | Electronic wrist band UV dosimeters47 | 7 days in each study period |
Phthalates, phenols, organophosphate pesticides | 152 | – | Pool of bedtime and first morning urine | 4 separate days in one study period |
Phthalates, phenols, organophosphate pesticides, cotinine | 152 | 154 | Pool of daily urine samples (2 or 3 per day) during 1 week | One pool in each of the two study periods |
Phthalates | – | 44 | All morning and bed time urines during 1 week | 7 days in one study period |
1H NMR metabolomics | 22 | – | All morning and bed time urines during 1 week | 7 days in one study period |
Lung function | 62 | – | Spirometry | Last day of period 1 and 2 |
Blood pressure | 157 | 154 | OMRON 705-CPII automated oscillometric device | Last day of period 1 and 2 |
Height and weight | 157 | 145 | Last day of period 1 and 2 |
*With data in both periods.
BTEX, benzene, toluene, ethylene and meta-xylene, para-xylene and ortho-xylene; 1H NMR, proton nuclear magnetic resonance; NO2, nitrogen dioxide; PM 2.5, mass concentration of particles <2.5 µm in aerodynamical diameter; UV, ultraviolet.