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HSE Change Occupational Exposure Limits for Gases

HSE Change Occupational Exposure Limits for Gases
August 27, 2018 Yvonne

As of August 2018 the HSE has changed the exposure limits to the following:

GAS TYPE TWA STEL
CARBON MONOXIDE (CO) Now: 20ppm

Was: 30ppm

Now: 100ppm

Was: 200ppm

HYDROGEN CYANIDE (HCN) Now: 2ppm

Was: 25ppm

Now: 4.5ppm

Was: 10ppm

NITROGEN MONOXIDE (NO) Now: 0.5ppm

Was: 1ppm

Now: 0ppm

Was: 35ppm

NITROGEN DIOXIDE (NO2) Now: 0.5ppm

Was: 1ppm

Now: 1ppm

Was: 5ppm

SULPHUR DIOXIDE (SO2) Now: 0.5ppm

Was: 0.5ppm

Now: 1ppm

Was: 1ppm

 

Please visit the HSE website for the full details: http://www.hse.gov.uk/index.htm