Figure A1.
Photos of samplers used for personal exposure measurements: (a) Gradko rapid air NO2 sampler (product: DIFRAM-100; UKAS method: GLM 7; detection limit: <0.2 µg/m3 for 1-week exposure); (b) activated Gradko rapid air NO2 sampler; (c) RadielloTM diffusive cartridge (right) and diffusive body attached to a triangular support plate (left) (products: Rad130, RAD120, and RAD121; detection limit for BTEX: 0.05, 0.01, 0.01, and 0.01 µg/m3, respectively; calibration: CS2); (d) ACR Systems Inc. temperature logger (product: SmartButton (01-0187); detection limit: −40 °C to 85 °C); (e) air monitoring devices in the mesh pocket of a backpack (product: Barron BB0110 Curve and Arch Design backpacks); (f) backpack worn by participants with samplers located 50 to 60 cm from the face.