Dust entry

Mouldy grain dust

Organic dust from mould-contaminated grain or flour handled during farming, storage, milling, or processing.

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

hypersensitivity pneumonitisextrinsic allergic alveolitismiller's lungrespiratory inflammationoccupational asthma concern

Evidence

CCOHS identifies mouldy grain and flour dust as exposures associated with wheat-weevil lung or miller's lung, and describes animal and vegetable dusts containing microorganisms as causes of hypersensitivity pneumonitis.

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What is Farmer’s Lung? · 1

Farmer's Lung is an allergic disease usually caused by breathing in the dust from mouldy hay. However, dust from any mouldy crop - straw, corn, silage, grain, or even tobacco - can also cause Farmer's Lung.

Controls

mould and moisture control
enclosed grain handling
ventilation
dust suppression
exposure assessment
appropriate respiratory protection