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Institute for Tribal Environmental Professionals Indoor Air Quality in Tribal Communities
Introduction to Mold Mansel A. Nelson June 2011
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Northern Arizona University The Mountain Campus
Flagstaff, AZ
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Presentation Introduction to IAQTC
Introduction to Mold (Short Version) What is mold? Factors contributing to mold growth Health impacts
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Indoor Air Quality in Tribal Communities
The IAQTC project activities will focus on prevention and control of indoor air contaminates. Radon Indoor asthma triggers Indoor air quality management in schools.
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Work Plan Conferences, meetings, and outreach to Tribes
Seminar development and delivery in conjunction with national meetings Web resources Technical assistance
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Technical Assistance Projects
Respond to technical and non-technical questions Facilitate development of partnerships and collaborations within tribal community to address IAQ issues.
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An Introduction to Mold
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Types of Molds What are molds?
Under a microscope What are molds? Part of “Fungi” kingdom that includes molds, yeasts, mushrooms, rusts Microscopic organisms that form and colonize through airborne spores
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Types of Molds (continued)
Over 100,000 different types; about 10 different species common indoors
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Factors Contributing to Mold Growth
What do molds need to grow? Food supply Warm temperatures Moisture
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Factors Contributing to Mold Growth
#1 - Food Sources Organic sources Building materials
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Factors Contributing to Mold Growth
#2 - Heat Warm air holds more moisture than cold air Mold likes same temperatures as humans
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Factors Contributing to Mold Growth
#3 – Moisture and vapor sources Moisture sources Building envelope leaks Plumbing leaks Water vapor sources High relative humidity (RH) Damp soil & basements Occupant activities Condensation happens in cold spots
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Optimum Relative Humidity
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Control of Mold Control Moisture!
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Health Impacts “Exposure to damp and moldy environments may cause a variety of health effects, or none at all.” Health impacts vary widely and are individual in impact. Health issues can result from a variety of environmental issues and it can be difficult to identify specific causes.
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Health Impacts Irritant Allergen Infectious Toxic
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Mansel A. Nelson, Senior Program Coordinator
Environmental Education Outreach Program (EEOP) Indoor Air Quality in Tribal Communities (IAQTC) Institute for Tribal Environmental Professionals (ITEP) Northern Arizona University (NAU) Voice or 1496 FAX PO Box 5768, Flagstaff, AZ 86011
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