Office Indoor Air Quality
I am
currently researching the air quality in my office. We are in the
process of having air quality tests done. Can each individual be
tested for exposure to toxic air pollutants? I have had health
problems for the past year and wonder if it is due to air quality at
work-Margaret ,
Massachusetts
Office building/work-related health
problems are quite common. Indeed, if I did a survey in almost any
office building, I would expect anywhere from 5 to 20% of the
building occupants to experience symptoms that are related to their
building environment or work activities. There are a variety of
causal factors for building/work-related symptoms or health
problems.
Illness symptoms among occupants of
office buildings can be distinguished from other health problems
from an examination of illness patterns. Typically symptoms are of
a respiratory type (congestion, runny nose, sore throat, cough),
irritation-type (red or itchy eyes, irritated skin) or of a general
nature (headache, fatigue, malaise).
These characteristic building-type
symptoms occur often or always, develop within an hour or two of
entering the building, resolve within an hour or two of leaving the
building, or resolve over weekends or on vacation and then return on
entering the building.
Headache, fatigue, malaise and in
many cases respiratory symptoms are associated with poor ventilation
conditions, that is, when measured indoor CO2 levels are
above 1000 ppmv. When CO2 levels are above 2000 ppmv,
the symptom complaint rate significantly increases.
Respiratory symptoms can be caused
by a variety of exposures. This can include mold when active mold
growth on building materials is present, dust when building surfaces
are increasingly dusty and cleaning is not adequate, a variety of
allergens (including cat, dog, cockroach) brought in on the clothing
of building occupants, and such materials as carbonless copy paper
and even photocopier paper.
In the above context if you are
allergic to cats you can develop respiratory symptoms from the
allergens brought into your office area by your cat-loving office
mate or occupant of the adjoining cubicle.
Irritation symptoms of the skin are
commonly associated with things in the office environment you touch
and particularly when you handle large quantities. This is
particularly the case with a variety of paper products.
There are other exposures that can
cause building-related health symptoms. They are often unique to
the building environment in question. You mentioned that some of
those working in your office building report being nauseous. Nausea
is a relatively uncommon symptom associated with building
environments. In those relatively rare cases, nausea can be traced
to elevated carbon monoxide levels associated with (1)
malfunctioning heating systems, or (2) use of propane-fueled
equipment in the building (forklifts, floor burnishers, etc.).
Unfortunately, there are few tests
that can determine whether an individual is being exposed and
adversely affected by toxic pollutants. The exception is of course
carbon monoxide.
January 30, 2007