microscopyLCS Laboratory offers customized Indoor Air Quality (IAQ) screening in residential houses and apartments in London Ontario. IAQ is very general term that is used to define how close is air quality in your house in comparison to accepted norms. After 19 years in IAQ chemical laboratory analysis we developed IAQ screening procedure that allows perform large number of different air tests.

During the visit we test up to 9 parameters using direct reading instruments.  The procedure is fast and efficient and allows to focus on properties of biggest concern. If the client requires more accurate results, the air samples for selected parameters can be collected during the follow-up visit and taken to LCS Laboratory for  chemical analysis. For example, if the screening test shows elevated dust or TVOC level, the second visit may be recommended to investigate the nature of chemical contamination.

cigarette smoke as an example of semi- volatile liquid

cigarette smoke

Our IAQ screening may include any combination of the following tests and services:

  • Indoor temperature. Air temperature is one of the most important parameters that gives us sense of comfort. We can advise if the temperature of your home or office is within a recommended  range or not
  • Relative humidity of air Humidity is a measure of water concentration in air. When air is too dry, our skin loses moisture quicker and gets dry. Our eyes are itchy. Dry air causes nasal mucosa (membrane) to dry, which may cause nose bleeding and also makes us more vulnerable to airborne diseases.  Very high humidity gives us sense of stale air and increases risk of mold growth. Our test shows how close your house is to the optimal humidity range
  • Carbon dioxide in air. Carbon dioxide is a normal part of our environment. It typical concentration in fresh outdoor air is 400 parts per million (ppm).  Our test measures carbon dioxide in your house, if the level is elevated, you need to bring more fresh air in
  • Common dust PM10 and fine dust PM2.5 in air. Dust is a source of allergies, it carries all kind of chemicals and germs. The danger of dust is well known and regulated in hospitals, Now we offer this state of the art technology to you
  • laboratoryTotal Volatile Organic Compounds (TVOC) in air. Small amount of TVOC is produced by our body but most of it comes from household chemicals. Building science recommends to keep TVOC level below 0.1 ppm which is commonly referred as a “comfort level”. This test shows if TVOC level is within a comfort zone. If TVOC is high in some areas, those areas should be considered as chemically contaminated
  • Carbon monoxide in air. Carbon monoxide (CO) is a product of incomplete combustion of fuel. Outdoor level of CO is below 2 ppm, which is relatively low value. In houses it is produced by burning heaters, candles, fireplaces and furnaces. Levels of up to 9 ppm of CO in air are considered to be safe. Higher concentration can be deadly
  • Formaldehyde in air. Formaldehyde is a synthetic gas that is classified by Health Canada as carcinogenic (causing cancer). It is typical for poorly ventilated areas of the house. Formaldehyde is emitted by man made composite materials like plywood, laminate, hardwood floor, modern furniture, UFFI wall insulation. Allowable formaldehyde level in houses is 0.04 ppm. Our screening test allows detection of formaldehyde at the level of 0.05 ppm, which is on the edge of regulated value. If our screening shows elevated formaldehyde level, the standard air sampling should be performed to confirm the finding
  • stained moldMold spores in air. Any biological and chemical objects in air, including mold, may cause allergies. In this test the samples are collected on Air-O-Cell cassettes and are taken to our laboratory for testing. In our report we identify 12 different types of mold and their individual concentrations in air.  Elevated mold level points on mold growth and possible water damage
  • Bacteriological level. This test that is generally known as air sterility test, and was initially developed for hospital use. We collect air samples inside the house and outdoor to see if there is a source of bacteriological contamination in the house. The air samples are submitted to microbiological laboratory for analysis. Laboratory result is reported as Colony Forming Units per meter cube (CFU/m³)

Site visit, collection of data, and samples can take between 1 and 3 hours. The results are taken to our office where we prepare a formal report.

discussWe can report IAQ findings in 2 different formats: 

  • Summary report. This report consists of 2-3 pages  of tables with numerical values of the findings. This format is recommended for clients who want review and analysed the results based on their knowledge of the property.
  • Comprehensive report includes all analytical data that are discussed in perspective of existing Canadian and International guidelines.

 The results of the study can be helpful in understanding general air quality in your house, and may point on pre-existing areas of concern. The wide IAQ screening is not recommended for houses with known issues like fire or water damage. If you know the nature of the damage, we can develop series of tests specific for your unique situation.

The IAQ screening is not suitable for regulatory compliance.  If you need IAQ survey to comply with an order or by-law, please contact us for a referral to a consulting company that specialize in by-law compliance IAQ.

Typical cost of the IAQ screening is between $300 and $1200 and depends on property size and number of tests that you need to perform. For a free no obligation quote, please email us the following information:

  1. Your Postal Code
  2. Number of rooms, that you want to test
  3. Which tests from the list above, you want to add to your test
  4. Are you looking for Summary or Comprehensive report?

Please email us to discuss your project.