From: Health effects of exposure to diesel exhaust in diesel-powered trains
Exposure | Electric (n = 29) | Diesel (n = 54) | Mean difference (95% CI) |
---|---|---|---|
Black carbon (μg/m3) | 1.8 (0.5) | 10.3 (2.0) | 8.5 (7.9; 9.1)*** |
Ultrafine particles from DiscMini (#/cm3) a) | 8100 (2400) | 189,200 (91,900) | 181,000 (153,700; 208,400)*** |
Ultrafine particles from NanoTracer (#/cm3) | 9100 (3500) | 133,400 (52,100) | 124,300 (110,000; 138,500)*** |
NOx (μg/m3) | 45 (16) | 363 (73) | 317 (297; 338)*** |
NO2 (μg/m3) | 18 (9) | 54 (16) | 36 (31; 42)*** |