Indoor air quality problems have been around for centuries, but our scientific understanding of the indoor environment is just beginning. Because of this, the knowledge and skills of individuals providing indoor environmental quality services vary tremendously. There are no federal regulations covering professional indoor air services (except where it involves asbestos, lead or radon). Some professional organizations, such as the American Board of Industrial Hygiene (ABIH) offer certifications in indoor environmental quality, but these are not required by law. So, if you have a suspected indoor air quality problem that you cannot readily understand and remedy, it can be difficult to decide where to turn.
We at Property Health understand the complexities and importance of this essential environmental service.
Inventory sources of airborne dusts, chemicals and allergens
Many sources of indoor pollutants are readily observable during an inspection in and around the building and their possible relation to the complaints should be noted. Inspect the general cleanliness of the area. A thorough cleaning of the surfaces, carpets and furnishings may alleviate occupant discomfort related to airborne dusts, fibers and allergens.
Consider the outdoor air as a possible source. Pollen and mold can aggravate allergies and result in air quality complaints. Vehicle traffic near HVAC system air intakes can add carbon monoxide and other contaminants to the indoor air. Workplace activities involving even small amounts of chemicals can lead to occupant discomfort if the area is not properly ventilated. Use your organization’s hazard communication program as a starting point to list chemicals occupants use and don’t forget to consider outside contractors’ activities, such as cleaning crews, roofers and construction contractors.
Examine sources of moisture intrusion or water damage
Moisture intrusion can promote growth of mold (fungi) and bacteria. Bacteria are rarely a problem, unless there is a constant or pooled water source. Unusual types or high concentrations of fungi may be related to a significant portion of occupant symptoms, especially among persons with allergies. Sometimes you may not be able to see the impact of moisture on the building. It can be hidden by floors, walls and ceilings, and may require professional assistance and highly specialized testing to locate the problem.