Which of the following causes death by asphyxiation, if its presence inatmospheric air exceeds maximum allowable concentration (i.e. > 50 ppm)?
(A) Benzopyrene
(B) Peroxyacetyl nitrate
(C) Carbon monoxide
(D) Sulphur dioxide
(A) Benzopyrene
(B) Peroxyacetyl nitrate
(C) Carbon monoxide
(D) Sulphur dioxide