Dust entry

Wildfire ash dust

Dust and ash particles deposited by wildfires and resuspended during wildfire cleanup.

Airborne form

dust

The form describes what is suspended in air at the point of exposure. A material can produce more than one form, such as dust during handling and fume during heating.

Health effects

eye irritationskin irritationcoughingasthma exacerbationbreathing difficultyrespiratory exposure concern

Evidence

EPA states that wildfire ash deposited on surfaces can become airborne during cleanup and be inhaled; ash and other fire products may irritate the eyes, nose, and skin and cause coughing and other health effects, while deeply inhaled ash may trigger asthma attacks and make breathing difficult.

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How do I safely clean up wildfire ash? · 1

Ash from burned structures may be more hazardous than ash produced from the burning of trees, shrubs, and other natural materials. ... Ash deposited on surfaces both indoors and outdoors can be inhaled if it becomes airborne when you clean up.

Controls

avoid dry sweeping and ordinary vacuuming
slightly mist ash before wiping or sweeping
HEPA vacuum where appropriate
well-fitting NIOSH-approved N95 or P100 respirator
gloves and protective clothing
keep children and vulnerable people out of cleanup