The NIOSH Pocket Guide identifies sucrose dust exposure by inhalation and skin or eye contact, lists eye, skin, and upper-respiratory irritation and cough, and warns that fine airborne sugar dust may explode.
Source: html ↗ · saved source
Exposure Routes / Symptoms / Fire and Explosion Hazard · 1Noncombustible Solid, but fine airborne dust may explode. Exposure Routes: inhalation, skin and/or eye contact. Symptoms: irritation eyes, skin, upper respiratory system; cough.
A NIOSH health-hazard evaluation characterized sugar dust as a nuisance particulate and reported that excessive concentrations may irritate the eyes, nasal passages, skin, and mucous membranes; it measured sugar-dust concentrations of 1.3–8.6 mg/m³ at the evaluated sugar plant.
Source: pdf ↗ · saved source
page 10 · Health Effects of Specific Compounds — Sugar dust · 1Available toxicity data indicates that sugar dust would be characterized as a "nuisance" particulate ... Excessive concentrations of nuisance dust ... may cause unpleasant deposits in the eyes, ears, and nasal passages; or cause injury to the skin or mucous membranes.