INDOOR AIR QUALITY CASE STUDY CONDUCTED BY: ILLINOIS ONSITE SAFETY AND HEALTH CONSULTATION PROGRAM

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INDOOR AIR QUALITY CASE STUDYCONDUCTED
BYILLINOIS ON-SITE SAFETY AND HEALTH
CONSULTATION PROGRAM
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Background Information

• Student With Respiratory Problems
• Parent Called Private Environmental Consultant
• Parent Was Referred To On-Site Consultation
  Program
• School Principal Requested Our Assistance

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School Description

• Catholic Grade School
• Preschool to 6th Grade
• (Approx. 350 Students)
• Configuration
• Original L Section
• Two New Add On Wings
• Square Central Courtyard

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Air Sampling

• Mold / Fungal Spores
• - Visual ID of Spores
• - Colony Forming Units
• Carbon Monoxide
• Carbon Dioxide
• Temperature
• Relative Humidity

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Findings Temperature and Relative Humidity

• ANSI/ASHRAE 55 Recommending Limits
• Winter 68 to 74.5 Degrees F.
• Summer 73 to 79 Degrees F.
• Relative Humidity 30 to 70
• The school was within recommended limits.

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FindingsMold and Fungal Spores

• Highest to Lowest Areas
• 1. Outdoors in Courtyard
• 2. Boiler Room
• 3. Janitors Closet
• 4. Kitchen
• 5. First Grade - Window open to
• courtyard

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FindingsCarbon Monoxide

• Limits
• OSHA 50 Parts Per Million (PPM)
• ACGIH TLV 25 PPM (Recommended)
• Highest to Lowest
• Boiler Room - 15 to 20 ppm
• Kindergarten/1st Grade Hall - 4 ppm
• Teachers Lounge - 2 ppm
• Outdoors - 1 ppm

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FindingsCarbon Dioxide

• Limits OSHA 5000 ppm
• ACGIH TLV 5000 ppm
• ANSI/ASHRAE 1000 ppm (Recommended)
• Highest to Lowest
• Classrooms - 2160 to 3030 ppm
• Teachers Lounge - 1911 ppm
• Boiler Room - 1690 ppm
• Outdoors - 401 ppm

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Other Safety Issues Addressed

• Bloodborne Pathogens
• Hazard Communications Program
• Evacuation Route
• Workplace Hazard Assessment PPE Use
• Fire Extinguishers not annually inspected
• OSHA Poster

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Feedback From Principal

• I really appreciate all that you did for our
• school last year. It helped us a lot. When the
• State came through to conduct their
• inspection, they were blown away with all
• the work that was done in the area of health
• and safety. Thanks to you.

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Don WilliamsDepartment of Commerce and Community
Affairs200 S. Wyman St. Suite 102Rockford, IL
61101Tele. [phone]dwilliam_at_commerce.stat
e.il.us