Hazardous Chemical Information System (HCIS)

Exposure Standard Documentation

Nitrogen dioxide

SUBSTANCE NAME:Nitrogen dioxide

CAS Number: 10102-44-0

Exposure Standard:

TWA: 3 ppm 5.6 mg/m3

STEL: 5 ppm 9.4 mg/m3

Documentation notice. American Conference of Governmental Industrial Hygienists (ACGIH), Documentation of Threshold Limit Values and Biological Exposure Indices, 6th Edition, ACGIH, Cincinatti, Ohio, 1991

No standard should be applied without reference to the Guidance Note on the Interpretation of Exposure Standards for Atmospheric Contaminants in the Occupational Environment [NOHSC:3008(1995)], and to the related documentation.


Documentation notice

Documentation for the majority of substances can be found in the American Conference of Governmental Industrial Hygienists' (ACGIH) documentation of the threshold limit values and biological exposure indices - users should refer to the ACGIH documentation cited.