indoor_airquality.pptVIP

Indoor Air Quality (IAQ) March 2009 UCOP Safety Meeting Indoor Air Quality (IAQ) Discuss Characteristics of Indoor Air Quality Physical Chemical Biological Factors Cause IAQ Issues Improve IAQ What is IAQ? Office Type Environment Ventilation is General Dilution Type Heating, Ventilating, and Air Conditioning (HVAC) System Windows Energy Efficiency Starting in the 1970’s Buildings were Sealed Up to Reduce Energy Costs Air Contaminants Trapped Lack of Outdoor Air Sick Building Syndrome American Society of Heating, Refrigeration Air-Conditioning Engineers (ASHRAE) Standard 62 – Recommends 15 to 20 Cubic Feet per Minute (CFM) of Outdoor Air per Person Outdoor Make-Up Air for Major UCOP Buildings Kaiser Building – Built in the 1950’s 100% Outdoor Make Up Air No Indoor Air is Recirculated 1111 Franklin Street Minimum of 10% Outside Air Depending on the Outdoor Temperature at Times Up to 60% of Building Air is Outdoor Make-Up Air Each Morning – Ventilation Turned Up Prior to Arrival of Employees Causes of IAQ Problems Temperature and/or Humidity Too Much Glare Inadequate Fresh Air - Lead to Carbon Dioxide (CO2) Buildup Normal Outdoor CO2 Levels is 350 ppm Indoor CO2 Levels Can Be 600-800 ppm 1000 ppm CO2 Levels – Tired/Sleepiness Cal/OSHA Permissible Exposure Limit for CO2 is 5000 ppm Introduction of Chemicals Contaminants into the Building Building Remodeling - Adhesives, Paints Select Low Volatile/Low Toxicity Products Schedule Work on Weekends/After Hours Allow Remodeled Area to Off-Gas Prior to Re-Occupation Temporarily Relocate Employees Old Food - Forgotten Lunches/Snacks Introduction of Chemicals Contaminants into the Building Cleaners UCOP Uses Green Seal Cleaning Supplies Non-Toxic Not a Skin Sensitizer Does Not Contain Substances Which Contribute to Poor Indoor Air Quality If Using a Cleaner - Be Aware of How Your Actions May Impact Your Co-Workers Building Air Inlet - Auto Exhaust Carbon Monoxide Introduction of Chemicals Contaminants into the Buil