Indoor air quality (IAQ)
Is a term which refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants.
IAQ can be affected by gases (including carbon monoxide, radon, and volatile organic compounds), particulates, microbial contaminants (mold, bacteria) or any mass or energy stressor that can induce adverse health conditions.
Source control, filtration and the use of ventilation to dilute contaminants are the primary methods for improving indoor air quality in most buildings.
Determination of IAQ involves the collection of air samples, monitoring human exposure to pollutants, a collection of samples on building surfaces and computer modeling of air flow inside buildings.
Molds and other allergens: Mold health issues, Mold growth, assessment, and remediation
These biological chemicals can arise from a host of means, but there are two common classes: (a) moisture induced growth of mold colonies and (b) natural substances released into the air such as animal dander and plant pollen. Moisture buildup inside buildings may arise from water penetrating compromised areas of the building envelope or skin, from plumbing leaks, from condensation due to improper ventilation, or from ground moisture penetrating a building part. In areas where cellulosic materials (paper and wood, including drywall) become moist and fail to dry within 48 hours, mold mildew can propagate and release allergenic spores into the air.
In many cases, if materials have failed to dry out several days after the suspected water event, mold growth is suspected within wall cavities even if it is not immediately visible. Through a mold investigation, which may include destructive inspection, one should be able to determine the presence or absence of mold. In a situation where there is visible mold, and the indoor air quality may have been compromised, mold remediation may be needed. Mold testing and inspections should be carried out by an independent investigator to avoid any conflict of interest and to ensure accurate results; free mold testing offered by remediation companies or you Building systems maintenance service provider is not recommended.
There are some varieties of mold that contain toxic compounds (mycotoxins). However, exposure to hazardous levels of mycotoxin via inhalation is not possible in most cases, as toxins are produced by the fungal body and are not at significant levels in the released spores. The primary hazard of mold growth, as it relates to indoor air quality, comes from the allergenic properties of the spore cell wall. More serious than most allergenic properties is the ability of mold to trigger episodes in persons that already have asthma, a serious respiratory disease.
Mold is always associated with moisture, and its growth can be inhibited by keeping humidity levels below 50%. Moisture problems causing mold growth can be a direct cause, such as water leaks or indirect such as condensation due to humidity levels.
If you would like more information about mold, allergy or asthma helps, or how to improve the indoor air quality in your building, you can visit our contacts page on this website and schedule a free 30 minutes consultation. Alternatively, you can call us at 441 5051325.
On this website, you will find a range of IAQ services to help ensure a healthy indoor environment for offices, hotels, schools and other special needs...
Seemingly Innocent housekeeping items can produce a compound known as formaldehyde (VOC's) which can be dangerous to your health. For more information watch video at the bottom of this page, and contact us if you suspect and IAQ problem. |
|