How do I know what indoor air pollutant is bothering me?

There are "signatures" associated with some components that cause problems.  Knowing your symptoms and the conditions around you at the time they appear can be of great value to an investigator.Back

Are there any "warning signs" that indoor air problems are developing?

Yes.  There are a number of indicators that signal the potential presence of indoor air quality problems.  The occupants of the building will probably provide the first clues when maintenance and cleaning procedures are not in place.  Headaches, fatigue, shortness of breath, sinus congestion, coughing, sneezing, eye/nose/throat irritation, skin irritation, dizziness or nausea with any consistency or regularity are all symptoms that can be related to indoor air quality problems.  Your doctor can rule out or diagnose seasonal allergies, however, you are in charge of your health and your home.Back

If you know or suspect that your symptoms are worse when at specific locations, you should suggest to have the building evaluated for indoor air problems.  Other indicators include visible growth of moulds or mildew, or persistent odours from moulds or mildew; fumes or other chemical odours; water standing in and around the building or the heating and air conditioning equipment; visible contamination in the outdoor intake of the heating and air conditioning system; or any persistent source of moisture such as leaky roofs or pipes, condensation, or water coming into the building from an outside source. Back

Do you have courses about indoor air quality?

We have numerous courses and programs related to IAQ.  Please visit Initiatives and Courses.  The button link to the Initiatives and Courses section is found in the right column of the page.Back

Can’t the problem just be fixed using things like decontaminates, filters, ultraviolet lights, and air purifiers?

No.  The source must be identified and eliminated before a building can return to "normal".  Attempts to destroy the fungal colonies with so-called decontaminates usually produce hardier strains of the fungi that are resistant to the chemical previously used on them.  Most filters cannot trap the tiny and light-weight microbial spores circulating in a building.

Ultraviolet light can kill some microbial spores, but it is very difficult to get enough light on them for a long enough time to destroy them.  Ion generators, ozone generators, ozonators, and similar products cannot eliminate the sources of indoor air contaminants.  The cause would need to be fixed or repaired (as in a leaky roof).Back



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