PHYSICAL PROPERTIES

Nitrogen Dioxide is a red-brown,

toxic gas at room temperature

Molecolar
Weight
Relative Density
@101.325 kPa
@25C (Air=1)

EXPOSURE LIMITS

TWAEV
Time-Weighted Average Exposure Values
STEV
Short-Term Exposure Values

NITROGEN DIOXIDE

EXPOSURE EFFECTS OF

CARBON DIOXIDE GAS

Exposure to low concentrations of Nitrogen Dioxide (as little as 25ppm

over an 8 hour period) will likely not produce immediate serious effects,

but the effects of exposure will

set in as much as 5 to 48 hours later.

 

Just a few breaths of NO2 at as little as 200ppm may produce fatal results after 5-8 hours have passed.

 

Some of the symptoms and effects

of exposure include; initially, headache, nausea, dizziness, vomiting and respiratory discomfort. Increasingly, these symptoms will get worse with time and the victim of exposure will find their ears and lips turn blue, respiration will become more difficult and accelerated.

If untreated, death is likely to occur from pulmonary edema.

 

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