indoor pollution

Indoor air pollution refers to health risks associated with contaminants accumulating inside homes and workplaces. This is often worsened by efforts to conserve energy by reducing air exchange rates, which traps pollutants. Common indoor pollutants include combustion products from stoves and heaters, volatile organic compounds (VOCs) from household products like paints and cleaning agents, and off-gassing from building materials. Biological contaminants such as bacteria, viruses, molds, and animal dander can also cause health problems, especially when spread by HVAC systems. Environmental tobacco smoke is another significant indoor pollutant. Naturally occurring radon gas can also seep into buildings. Reducing exposure involves proper building construction, limiting pollutant sources, and ensuring adequate ventilation.1