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Sick Building Syndrome (SBS): A term used to refer to the
condition in which a majority of building occupants
experience a variety of health and/or comfort effects
linked to time spent in a particular building, but where
no specific illness or causative agent can be identified.
Symptoms often include headaches, eye irritation, and
respiratory irritation.
Sink: A material with the property of absorbing a chemical or
pollutant with the potential of subsequent reemission;
sometimes called a sponge.
Source control: A preventive strategy for reducing airborne
contaminant levels through the removal of the material
or activity generating the pollutants.
Stressor: Any biological, chemical physical psychological, or
social factor that contributes to a complaint.
ABBREVIATIONS
The following abbreviations are used throughout this section
in the text and drawings.
AHU — Air Handling Unit
ASHRAE — American Society of Heating,
Refrigerating and Air Conditioning
Engineers
ANSI — American National Standards Institute
BOCA — Building Owners and Code
Administrators
BMS — Building Management System
DNR — Department of Natural Resources
C — Celsius
CDC — Center for Disease Control
C O — Carbon monoxide
CO
— Carbon dioxide
2
DOP — Dioctyl phthalate
EA — Exhaust Air
ETS — Environmental Tobacco Smoke
HCHO — Formaldehyde
HEPA — High Efficiency Particulate Filter
EPA — Environmental Pollution Agency
IAQ — Indoor Air Quality
IDLH — Immediately Dangerous to Life and
Health
L/s — Liters per second
MA — Mixed Air
MCS — Multiple Chemical Sensitivities
MSDS — Materials Safety Data Sheets
NAAQ — National Ambient Air Quality Standard
nCi/m
3
— Nanocuries per cubic meter
NIOSH — National Institute of Occupational
Safety & Health
ENGINEERING MANUAL OF AUTOMATIC CONTROL
INDOOR AIR QUALITY FUNDAMENTALS
Threshold: The contaminant dose or exposure level below
which there is no expected significant effect.
Total Volatile Organic Compounds (TVOCs): A measure
representing the sum of all VOCs present in the air.
Toxicity: The nature and degree of a given agent's adverse
effects on living organisms.
Volatile Organic Compound (VOC): One of a class of
chemical components that contain one or more carbon
atoms and are volatile at room temperature and normal
atmospheric pressure. In indoor air, VOCs are
generated by such sources as tobacco smoke, building
products, furnishings, cleaning materials, solvents,
polishes, cosmetics, deodorizers, and office supplies.
NO
— Nitrogen Dioxide
2
NRC — Nuclear Regulatory Commission
O
— Ozone
3
OA — Outdoor Air
OSHA — Occupational Safety and Health Agency
4-PC — 4-Phenylcyclohexene
PAH — Polycyclic Aromatic Hydrocarbons
Pb — Lead
PEL — Permissible Exposure Limit
PMV — Predicted Mean Vote
ppb — Parts per billion
ppm — Parts per million
PHD — Public Health Department
RA — Return Air
RH — Relative Humidity
RSP — Respirable Suspended Particles
SBC — Southern Building Code
SA — Supply Air
SO
— Sulfur Dioxide
2
SBC — Southern Building Code Officials
SBS — Sick Building Syndrome
SP — Supply Pressure
STEL — Short Term Exposure Limit
SMACNA — Sheet Metal and Air Conditioning
Contractors National Association
TLV — Threshold Limit Value
TSP — Total Suspended Particulates
TVOC — Total Volatile Organic Compounds
UBC — Uniform Building Code
3
g/m
— Micrograms per cubic meter
VAV — Variable Air Volume
VOC — Volatile Organic Compound
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