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Table 5 Personal exposures and workplace concentrations for ammonia, hydrogen peroxide and persulfates in different salon areas.

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]

  1. a: Each cell comprises the number of samples; b: the arithmetic mean; c: standard deviate; d: [min-max] (in mg/m3)
  2. * These min. figures were set to half the detection limit (see chapter materials and methods).
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Environmental Health

ISSN: 1476-069X