Allergen Facts Denver, Co

Allergen Facts Denver, Co

                                                                      What Are Some Common Indoor Biological Pollutants?

• Animal dander (minute scales from hair, feathers and skin)
• Dust mite and cockroach parts
• Fungi (molds)
• Infectious agents (bacteria or viruses)
• Pollen

 

Some of these substances are in every home. It is impossible to get rid of them all. Even a spotless home may permit the growth of biological pollutants. Two conditions are essential to support growth: nutrients and moisture. These conditions can be found in many locations, such as bathrooms, damp or flooded basements, wet appliances (such as humidifiers or air conditioners), and even some carpets and furniture.

Modern materials and construction techniques may reduce the amount of outside air brought into buildings which may result in high moisture levels inside. Using humidifiers, unvented heaters, and air conditioners in our homes has increased the chances of moisture forming on interior surfaces. This encourages the growth of certain biological pollutants.

The Scope of the Problem

Most information about sources and health effects of biological pollutants is based on studies of large office buildings and two surveys of homes in northern U.S. and Canada. These surveys show that 30% to 50% of all structures have damp conditions which may encourage the growth and buildup of biological pollutants. The percentage is likely to be higher in warm, moist climates.

Some diseases and illnesses have been linked with biological pollutants in the indoor environment, however, many of them have unrelated causes. Therefore, we do not know how many health problems are a direct result of poor indoor air.

Health Effects of Biological Pollutants.

All of us are exposed to biological pollutants, however, the effects on our health depend upon the type and amount of biological pollution and the individual person. Some people do not experience one or more of the following reactions:

• Allergic

• Infectious

• Toxic

Except for the spread of infections indoors, allergic reactions may be the most common health problem with the indoor air quality
in homes. They are often connected with animal dander (mostly from cats and dogs), with house dust mites (microscopic animals living in household dust), and with pollen. Allergic reactions can range from a simple flu-like symptom to mildly threatening, as in a severe asthma attack. Some common signs and symptoms are:

• Watery eyes

• Runny nose and sneezing

• Nasal congestion

• Itching

• Coughing

• Wheezing and difficulty breathing

• Headache

• Fatigue

Health experts are especially concerned about people with asthma. These people have very sensitive airways that can react to various irritants, making breathing difficult.

This Information was provided by the environmental solutions association.