Indoor air pollution comes from various sources such as heating equipment, cleaning products, biological contaminants, and particles like pollen and dust. These pollutants can cause health problems like respiratory issues, allergies, headaches, fatigue, and even lung cancer.
There are many substances that cause indoor air pollution. They include gases from heating equipment, fibers from carpets and fabrics, dust and allergens carried into a building on hair, clothing or shoes. Even cleaning products can add odorous pollutants to the air people breathe. In addition to these substances, indoor environments are often polluted by biological contaminants, such as mold spores and viruses present in the air.
One of the major categories of indoor air pollutants are particles that make their way through the air. Among these particles is pollen brought in from outside, often on shoes, skin and hair. Other types of particles that can contaminate an indoor environment are dust, dirt, and fibers that come from carpets and upholstered furniture. Insulation fibers and pet dander also contribute to indoor air pollution.
Gases and odors are another category of indoor air pollution. Gases can be released into the indoor environment through ordinary activities such as cleaning with aerosol sprays and liquid cleaning products. Painting, varnishing, and using air fresheners also expel noxious gases and fumes. Stoves and stoves can also cause chemical vapors to pollute the air. Pesticides, perfumed products, and cigarette and cigar smoke also contribute to indoor air pollution.
Some types of indoor air pollutants fall into the category of biological contaminants. This category of pollutants includes mold spores, yeasts, fungi and numerous types of bacteria and viruses. Dust mites are also among the most common types of biological contaminants found indoors. Typically, biological contaminants are found in both hot and humid locations. For example, dust mites like to settle in people’s beds, as they are typically both moist and warm, especially when people sleep on them.
Many indoor air pollutants cause health problems. For example, some contribute to asthma and other types of respiratory problems. An asthmatic individual who sleeps in a bed with a high dust mite population, for example, may have more asthma attacks. Additionally, both particles and biological contaminants often contribute to headaches and allergy symptoms, including itchy eyes, coughing and sneezing.
In addition to asthma and allergy symptoms, indoor air pollutants can cause problems like fatigue and nausea; this is especially true for gases. Some pollutants also contribute to the development of upper respiratory infections. Tobacco smoke pollution can contribute to the development of lung cancer.
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