Efficacy of a detector tube method in formaldehyde measurement.

  • Azuma M
  • Endo Y
  • Miyazaki T
 et al. 
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In order to determine the efficacy of a detector tube method in formaldehyde (HCHO) measurement, we performed a chamber experiment and a field study. The experiment clearly showed that the value obtained by the detector tube method was significantly correlated to that obtained using an active-DNPH method, and was not influenced by the coexistence of toluene, xylene or carbon monoxide, but was by acetaldehyde. In the field study, we investigated 171 rooms in 81 houses. Indoor air was simultaneously sampled for 30 minutes by both an active-DNPH method and the detector tube method. The mean HCHO concentration in the 171 rooms was 0.110 +/- 0.089 ppm determined by the active-DNPH method and 0.12 +/- 0.10 ppm by the detector tube method. Regression analysis showed that the two measures closely correlated with a regression equation Y=1.057 X + 0.002 (r=0.912, p

Author-supplied keywords

  • Air Pollution, Indoor
  • Air Pollution, Indoor: analysis
  • Disinfectants
  • Disinfectants: analysis
  • Environmental Monitoring
  • Environmental Monitoring: instrumentation
  • Environmental Monitoring: methods
  • Equipment Design
  • Formaldehyde
  • Formaldehyde: analysis
  • Housing
  • Solvents
  • Solvents: analysis
  • Toluene
  • Toluene: analysis
  • Xylenes
  • Xylenes: analysis

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  • Michiyo Azuma

  • Yoko Endo

  • Takeji Miyazaki

  • Yoko Hikita

  • Hiroki Ikeda

  • Yoshihumi Moriya

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