From: Exposure of hairdressing apprentices to airborne hazardous substances
 | H2O2 | NH3 | H2S2O8 |
---|---|---|---|
Personal exposure | (n = 39)a | (n = 53) | (n = 52) |
 | 0.05b (0.04)c | 0.90 (0.76) | 0.02 (0.02) |
 | [0.003*-0.18]d | [0.02–4.49] | [0.001–0.12] |
Technical area in the customer salon (permanenting, dyeing, bleaching with the customers) | (n = 53) | (n = 52) | (n = 52) |
 | 0.04 (0.03) | 0.72 (0.49) | 0.02 (0,02) |
 | [0.003*-0.18] | [0.13–3.03] | [0.00025*-0.1] |
Shampoo area | (n = 51) | (n = 51) | (n = 51) |
 | 0.03 (0.03) | 0.65 (0.40) | 0.02 (0,02) |
 | [0.003*-0.13] | [0.09–2.39] | [0.00025*-0.13] |
Technical room (mixing the chemicals for permanenting, dyeing and bleaching) | (n = 52) | (n = 52) | (n = 52) |
 | 0.04 (0.05) | 0.66 (0.45) | 0.02 (0,02) |
 | [0.003*-0.34] | [0.13–2.64] | [0.002–0.08] |
Average of ambient air concentrations in each salon | (n = 53) | (n = 52) | (n = 52) |
 | 0.04 (0.03) | 0.68 (0.42) | 0.02 (0,02) |
 | [0.003*-0.15] | [0.13–2.69] | [0.002–0.08] |