Are latex balloons biodegradable?
Latex is a 100-percent natural substance that breaks down both in sunlight and water. The degradation process begins almost immediately. Oxidation, the “frosting” that makes latex balloons look as if they are losing their color, is one of the first signs of the process. Exposure to sunlight quickens the process, but natural microorganisms attack natural rubber even in the dark.
Research shows that under similar environmental conditions, latex balloons will biodegrade at about the same rate as a leaf from an oak tree. The actual total degradation time will vary depending on the precise conditions.