Disturbing Accumulated Guano
Disturbing material contaminated with accumulated bird or bat droppings can increase exposure to airborne Histoplasma spores.
Activities that disturb contaminated material require precautions designed to reduce dust and aerosolization.
Handling Precautions
Bat-dropping cleanup should minimize dust and aerosolization.
NIOSH advises against dry sweeping or dry shoveling contaminated material.
NIOSH describes careful wetting and appropriate HEPA-equipped collection methods among the controls used when removal is necessary.
The CDC advises that large accumulations of bird or bat droppings be handled by companies specializing in hazardous-waste removal.
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