Severe reactions may occur among workers exposed to large amounts of molds in occupational settings, such as farmers working around moldy hay. Severe reactions may include fever and shortness of breath. People with chronic illnesses, such as obstructive lung disease, may develop mold infections in their lungs. One recent study showed a possible link between lung bleeding in infants and exposure to Stachybotyrs atra, a mold commonly found on wet cellulose products, such as drywall. Molds are found in virtually every environment and can be detected, both indoors and outdoors, year round.
Mold growth is encouraged by warm and humid conditions.
Outdoors they can be found in shady, damp areas or places where leaves or other vegetation is decomposing. Indoors they can be found where humidity levels are high, such as basements or showers. Sensitive individuals should avoid areas that are likely to have mold, such as compost piles, cut grass, and wooded areas. In situations where mold exposure is unavoidable, sensitive people should wear a tight-fitting face mask. Use an air conditioner or a dehumidifier during humid months.