14523 Westlake Drive #20
Lake Oswego, OR 97035
Sometimes at this stage one or more problems "jump out" such as
water damage or fumes from an intake, leading to a quick resolution of
For biological agents we provide swab, impactor (Anderson Sampler), static plate, or bubbler sampling followed by lab analyses. One particular specialty is fungi identification; for bacterial pathogens such as Legionella we will collect samples but subcontract with other labs for the identification.
For chemical agents we use portable chemical analyzers, such as ozone, carbon dioxide, and carbon monoxide monitors. Chemical pollutants such as formaldehyde, chlorine, and VOC's can also usually be detected with portable equipment. Filters can be configured to trap a wide variety of either chemical or biological agents. Using (link)microscopy, we can also analyze filters for asbestos, fiber glass, pollen, mites, fungi, construction materials, and combustion products. Most of these dust components we can be further analyze to isolate potential sources.
For physical problems such as HVAC upsets, we also can monitor air flows, temperature and humidity.
Sometimes solving a problem reqires heroic efforts, such as
resorting to special sampling procedures and gas chromatography - mass
spectroscopy (GC-MS) analyses. Some particularly difficult cases have
resulted in research projects, in which previously unknown problems
were brought to light, e.g., "carpet emissions" presented at the -----
meeting in l99-.
A common problem in the Portland area is moisture induced proliferation of fungal spores. We have sen wide ranges in symptoms (both type and severity), depending on the specific types of fungi present.
A number of cases also involved black, sooty dust. Some causes were burning candles, oil burners, car exhaust, charcoal fines produced by vibrations in an air filter, and rubber belt frictional wear.
Depending on the type of problem encountered, a variety of remedial
actions are usually available, with the client choosing the most
suitable option. Follow up analyses to insure remediation are sometimes
needed, for example, with radon, but our services usually end at this
point, unless the client insists on sueing someone and requires expert