HIGH LEVEL OF FORMALDEHYDE INDOOR AIR QUALITY
Formaldehyde is a flammable, colorless gas that has strong smell mainly emitted from household products and building materials. Formaldehyde can be found at high levels in air which has strong smell. High levels can cause irritation of the eye, nose and throat, and can make asthma symptoms worse in children and infants. The recent research conducted by California Air Resources Board (CARB) is the first detailed analysis of environmental contaminant and exposures for day cares. The research covered 40 day care centres across the city which showed high level of formaldehyde (87%) in the centres. The government guideline for formaldehyde is about 9 micrograms per cubic meter and the results of the research showed high levels over a period of 8 hours.
Formaldehyde can contaminate indoor air through many different ways such as emissions arising from the household, building materials, and combustions. Sources of formaldehyde in indoor air include tobacco smoke, smoke that may leak from wood-burning such as wood stoves and fireplaces, and many other products found inside Canadian homes that release very small amounts of formaldehyde into indoor air, including: furniture made with pressed wood, cabinets, consumer products (latex paints, wallpapers, cardboard, dishwashing liquids, glues), and cosmetics such as nail polish and nail hardener. Consequently, in 2002-2003, Health Canada measured levels of formaldehyde in the air inside a number of homes in Prince Edward Island and in Ottawa. The levels ranged from roughly 2 to 81 parts per billion (ppb).
2.0 Effect of formaldehyde on humans
Formaldehyde is an organic compound that occurs naturally in the environment at low levels. Worldwide industrial production tops 21 million tons per year. Formaldehyde can cause watery eyes, burning sensations in the eyes, throat, nausea and difficulty in breathing when human are exposed above 0.1ppm. High concentration may trigger...