What precaution must be taken when removing guano?

When removing guano, it is crucial to minimize exposure to fungal spores. Guano, particularly from bats, can harbor various fungal spores, such as those that cause histoplasmosis, a serious respiratory disease. Individuals handling guano may inhale these spores, which can pose significant health risks. Therefore, it is essential to take precautions such as wearing masks, gloves, and goggles when dealing with guano to prevent inhalation or direct contact with the material.

The other options do not accurately reflect the best practices for handling guano. Full protective gear is indeed necessary, and removal should be performed with the appropriate precautions due to the potential health risks involved. Outdoor removal, while it might seem safer, is not the only consideration; the exposure risk still exists regardless of the location. Moreover, assuming that guano can be handled safely without precautions is misleading and ignores the health risks associated with its removal.