With many communities experiencing flooding caused by heavy rainfall in recent months, the American Lung Association (ALA) is reminding people that property damage isn’t the only thing to worry about. In addition to containing dangerous substances like sewage, oil and gas, floodwaters can cause mold, which may affect your respiratory health long after the water has receded.

“Excessive rainwater and dampness in homes affected by severe storms and hurricanes may create a dangerous formula for bacteria, viruses and mold,” warns ALA Chief Medical Officer Albert Rizzo, M.D. “These can become airborne and inhaled, putting residents at risk for lung disease. Mold can be linked to wheezing, coughing, and in some cases asthma attacks, and there is evidence that associates mold with respiratory illness in otherwise healthy children.”