What building regulations exist with regard to the permissible level of indoor carbon monoxide?

Planning and Architecture General
2

The levels of indoor carbon monoxide must not exceed the following:

	100mg/m3 (90ppm) – 15minute averaging time

	60mg/m3 (50ppm) – 30minute averaging time

	(DOH, 2004)

	30mg/m3 (25 ppm) – 1 hour averaging time (DOH,

	2004)

	10mg/m3 (10 ppm) – 8 hours averaging time (DOH,

	2004)