HSE lists henna among substances that can cause occupational asthma.
Source: UK HSE: Substances that can cause occupational asthma ↗Dust entry
Henna powder dust
Fine particulate from handling or processing henna, a plant-derived dye identified by HSE as an occupational asthmagen.
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
occupational asthmarespiratory sensitisationskin sensitisation
Evidence
Controls
- enclosure
- local exhaust ventilation
- avoid creating airborne powder
- appropriate respiratory protection