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SILO SAFETY 2 800-AOY-01-IADO © 2019, Workplace Safety & Prevention Services (WSPS) 1 877 494 WSPS (9777) | 905 614 1400 | wsps.ca Potentially lethal levels of nitric oxide (NO), nitrogen dioxide (NO2), and nitrogen tetroxide N2O4), can also be produced in the silage process. These gases start forming soon after loading chopped plant material into the silo. Exposure to nitric oxide can result in chemical burns, permanent lung damage, and even death. If you suspect you have been exposed to silo gas, seek medical attention immediately. Get to fresh air immediately if you start coughing or experience throat irritation. Mould Mould spores produced by spoiled hay or silage can also create a dangerous situation. When inhaled, these mould spores can irritate the tissues in the mouth and nose. The reactions can be harsh enough to cause hospitalization. A respirator that can filter fine dust particles should be worn at times when around mouldy hay or silage, but only when in an area in which the air has enough oxygen in it and no other toxic gases or vapours. Prevent mould growth by following proper filling and chopping techniques. To prevent mouldy dust from becoming airborne, wet the top layer of silage down before moving anything. By handling dusty materials mechanically, it may keep you far enough away or create less dust. Silo Collapse From time to time, older tower silos collapse. Structural components can be weakened by seepage and the corrosive effects of silage acids. If damage is not repaired and routine maintenance is neglected, silo collapse is a distinct possibility. The following is a checklist of silo components that need to be assessed during a silo inspection. Check wooden doors for rot and physical damage Check bolts and bolt heads for tightness and degree of corrosion Evaluate corrosion and physical damage to door steps and latches Cast iron hinge eyes should be tightened and assessed for corrosion Concrete door frames should be checked for deterioration and physical damage Doors must seat properly in their frames for latch systems to work effectively Replace wire rope on the unloader (if signs of wear and tear are evident) Ensure that all ladders are in good condition Outside ladders should be fitted with structurally sound safety cages to prevent falls WSPS.CA

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