Biological and chemical Pollutants' Impact Indoor Air Quality (IAQ)

How Biological Pollutants' Impact on Indoor: Biological contaminants are, or are produced by, living things. Biological contaminants are often found in areas that provide food and moisture or water and many of these biological contaminants are small enough to be inhaled. They include bacteria, viruses, animal dander and cat saliva, house dust, mites, cockroaches, and pollen. There are many sources of these pollutants. By controlling the relative humidity level in a home, the growth of some sources of biologicals can be minimized. A relative humidity of 30-50 percent is generally recommended for homes. Standing water, water-damaged materials or wet surfaces also serve as a breeding ground for molds, mildews, bacteria and insects. House dust mites, the source of one of the most powerful biological allergens, grow in damp, warm environments.

• Pollens, which originate from plants.

• Viruses & Bacteria's, which are transmitted by people and animals.

• Mold, usually grows on standing water, water damaged materials, or wet surfaces

• Household pets, which are sources of saliva and animal dander (skin flakes)

• Droppings and body parts from cockroaches, rodents and other pests or insects.

• The protein in urine from rats and mice is a potent allergen. When it dries, it can become airborne.

• Central air handling systems can become breeding grounds for mold, mildew and other sources of biological contaminants and can then distribute these contaminants through the home.

• Damp or wet areas such as cooling coils, humidifiers, condensate pans or unvented bathrooms can be moldy.

• Draperies, bedding, carpet and other areas where dust collects may accumulate biological contaminants.

Health Effects from Biological Contaminants. Some biological contaminants trigger allergic reactions, including:

• Hypersensitivity pneumonitis

• Allergic rhinitis

• some types of asthma

Infectious illnesses, such as influenza, measles and chicken pox are transmitted through the air. Molds and mildews release disease-causing toxins. Symptoms of health problems caused by biological pollutants include:

• Sneezing

• Watery eyes

• Coughing

• Shortness of breath

• Dizziness

• Lethargy

• Fever

• and digestive problems

Allergic reactions occur only after repeated exposure to a specific biological allergen. However, that reaction may occur immediately upon re-exposure or after multiple exposures over time. As a result, people who have noticed only mild allergic reactions, or no reactions at all, may suddenly find themselves very sensitive to allergens.

Some diseases, like humidifier fever, are associated with exposure to toxins from microorganisms that can grow in large building ventilation systems (SBS).

Symptoms of poor indoor air quality (IAQ) are very broad and depend on the contaminant. They can easily be mistaken for symptoms of other illnesses such as allergies, stress, colds, and influenza. If you notice relief from your symptoms soon after leaving a particular room or building, your symptoms may be caused by indoor air contaminants.

Call us today for a fast indoor Air Quality (IAQ) Test. 

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