Introduction to Indoor Air Pollution

Most people think of pollution as being an outdoor phenomenon. However, many things can cause indoor air pollution. Indoor air pollution can contribute to allergies and other chronic health problems. The best way to deal with indoor air pollution is to remove the sources of the pollutants.

Dust

• Dust is likely the most common indoor air pollutant. Dust builds up naturally over time and comes from a variety of sources. The best way to remove dust is thorough cleaning. Over time, dust can build up in heat or air conditioning ducts. Cleaning those can help reduce indoor dust levels. For people with extreme dust sensitivity, indoor air filters can help.

Mold Contamination

• Mold comes in many forms. Molds reproduce using spores, and many people have an allergic reaction or sensitivity to those spores. Mold forms in wet areas, such as under leaky sinks and drains or after flooding has added moisture to carpets and walls. The best way to avoid mold contamination is to fix leaks. Once an area has become wet, it is important to thoroughly dry that area within one or two days. If mold is already present, the building materials in the moldy areas might need to be replaced. Once mold is present, it is best to consult a professional mold remediation expert.

Household Cleaners and Pesticides

• Many household cleaners and pesticides can leave indoor airborne residues. The best way to avoid indoor pollution from these sources is to use natural cleaners. If you have a pest infestation and must use pesticides, make sure that the room where the pesticide was used is thoroughly aired out. Thoroughly clean surfaces where the pesticide could have settled.

Gasses

• A common indoor pollutant is radon gas, which is a radioactive gas that can cause cancer. It requires professional intervention and the addition of ventilation in basements or low-lying areas. Another less common indoor pollutant is carbon monoxide. Carbon monoxide is deadly. Carbon monoxide is often caused by a clogged chimney on a gas furnace or a hot water heater. In some cases, carbon monoxide from an idling vehicle can seep in to indoor areas. Once the source of carbon monoxide contamination has been identified, removing the source is the only way to get rid of the pollution.

Building Materials

• Some building materials can emit indoor pollution. Some modern materials use formaldehyde to preserve items such as plywood and fiberboard. Generally, these materials will emit formaldehyde for a period of time and then be safe. The only way to mitigate formaldehyde is to reduce indoor temperatures and humidity. The best way to avoid formaldehyde contamination is to use materials containing lower quantities of the substance when building.