Indoor pollutant sources release gases or
particles into the air and they are the primary cause of indoor air
quality problems in your BUILDING. Inadequate ventilation can increase
indoor pollutant level by not bringing in sufficient outside air or
dilute emissions from indoor sources and by not carrying indoor air
pollutants out from the building.
Some indoor air problems are caused from interior building Materials,
furnishings and household products. Indoor air problems are also caused
by contaminated ventilation systems and improperly placed outdoor
air intakes.
Ventilation is a process of dilution and removal that gradually eliminates
pollutants. If there is improper air circulation, inadequate amounts
of outdoor air enter a BUILDING, thus allowing pollutants to accumulate.
These pollutants can build to levels that cause and/ or prolong health
and discomfort problems.
70's
Energy Conservation Measures
-
Heat Pumps
-
Lower resistance\ efficiency
-
Reduce outdoor air\ air Filtration
-
Tighter buildings
Reduce
Preventive Maintenance
-
Housekeeping
- Mechanical
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Increased
Density of Occupants
New Building Materials
-
Increased in V.O.C's
Measures
Results \ Buildings %
- Contamination involve in ductwork\ 12.2%
- Contamination involve in ductwork\ 12.2%
- Inefficient filtration of air supply \ 56.9%
- Faulty operation\ poor maintenance \ 75.6%
- Poor air distribution \ 28.0%
- Poor ventilation due to Conservation
What
factors effect air quality in our environment?
-
Increased in V.O.C's Nose, light, ergonomics, ventilation,
- temperature, humidity and air containment.
How
is air quality generally described?
-
Contaminants- temperature
- Movement- thermal comfort
- Filtering- thermal comfort
- Relative humidity
Facts#
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