Call for reliable Furnace replacement in Garden City MI.
(734) 427-7777

Allowable Exposure Levels to Carbon Monoxide

(734) 427-7777

Allowable Exposure Levels to Carbon Monoxide

 

Allowable (Legal) Limits for Carbon Monoxide

Occupational Safety & Health Administration, USA (OSHA) (for industrial situations) -

Permissible Exposure Limit (PEL, by TWA) - 50 ppm, 8 hrs.
Old PEL Standard (by TWA) - 35 ppm, 8 hrs.
Threshold Limit Value (TLV, by TWA) - 25 ppm (29 mg/cu. m)
(recommended by American Conference of Governmental & Industrial Hygienists ACGIH)
Ceiling (max. value, 15 min.) - 200 ppm (229 mg/cu. m)

MI Occupational Safety & Health Administration (MIOSHA) -

PEL (Industry, by TWA) - 35 ppm, 8 hrs. (38.5 mg/cu. m)
PEL (Construction, by TWA) - 50 ppm, 8 hrs. (55 mg/cu. m)
Ceiling (max. value) - 200 ppm (229 mg/cu. m)

Environmental Protection Agency, USA (EPA) -

Domestic, outdoor air, all ages (TWA) - 9 ppm*, 8 hrs.
Domestic, outdoor air, all ages (TWA) - 35 ppm, 1 hr.

World Health Organization (WHO) -

Domestic, outdoor air, all ages (TWA) - 9 ppm*, 8 hrs.

American Society of Heating, Refrigeration & Air Conditioning Engineers (ASHRAE) -

Indoor air (leakage at a heat register) - 9 ppm

American Gas Association -

Indoor air (leakage at a heat register) - 15 pm


TWA - Computed by making measurements at intervals over 8 hours, then adding the sums of the concentrations and the intervals, and dividing by 8 hours (480 min.). * Based on several published studies of people with coronary ischemic disease showing ECG changes during moderate exercise when breathing concentrations of CO giving 3% COHb.
24 Hour Emergency Service • Call (734) 427-7777 • or • Fill Out Our Online Form
24 Hour Emergency Service
Call Us Today
(734) 427-7777
Fill Out Our Online Form
Map & Directions
 

Get In Touch
 
Address:   32900 Manor Park
Garden City, MI 48135
Phone:   (734) 427-7777
Connect With Us
 
 
 
Payment Options
 
For Furnace repair service in Garden City MI, we accept most major credit cards.
 
We accept cash for Heating repair service provided in Westland MI.
We accept check for Furnace repair service provided in Canton MI.
 
Schedule an Appointment
Search Our Website
Home   |   Email Us   |   Schedule Service   |   Get a Quote   |   Ask a Tech   |   Maintenance   |   Employment   |   Privacy Policy   |   Financing