Biological contaminants are a form of air pollution, present particularly in the indoor air that humans breathe.  They are referred to as biocontaminants and can carry a wide variety of microscopic pollutants.

Biocontaminants can pose serious health risks to human beings.  The contaminants themselves include bacteria, mold, mildew, fungi, viruses, pollen, insects, and other carriers of disease.

Biocontaminants can cause a wide range of adverse effects.  These include  respiratory allergic reactions, asthma, and infectious diseases ranging from influenza to Legionnaires disease, which damages lungs, intestines, kidneys, the central nervous system, and may even cause death to significant numbers of people. Other viruses, including various animal diseases, can also be spread to humans through biocontaminants. 

Exposure to such contaminants can result from inhalation, ingestion, or skin absorption. There are a wide range of symptoms of the appearance of such contaminants. These include chills, aches, cold symptoms, shortness of breath, nausea, lethargy, fever, and digestive problems.

Primary (Health Related) Biological Contaminants