How long do molds typically remain airborne?

Molds are a type of fungus that thrive in warm, damp environments and can produce spores that become airborne. The correct choice indicates that molds can remain airborne throughout the year, except when snow is present on the ground, which typically provides a barrier to their spores being lifted into the air.

During the winter months, cold temperatures can limit mold growth; however, in warmer seasons or conditions, molds are quite prevalent and can release spores into the air. These spores can travel considerable distances, especially when wind or other disturbances occur. Therefore, while molds can be visually less noticeable in winter, they can still remain airborne under favorable conditions at other times of the year.

The other choices incorrectly limit the presence of airborne molds to specific seasons or times of day. Molds do not exclusively exist in summer or spring and fall, nor do they only circulate air during specific hours. Understanding the year-round potential for airborne mold spores is essential for effective asthma management and allergen awareness, especially for individuals who may be sensitive to mold.