• The health effects of glass injuries range from the mild forms of abrasion to life threatening lacerations. Crushed glass itself has mild effects on health, though it can pose risks to sensitive areas of the body, like the eyes, if exposed to a large enough amount. A person working with such materials, like crushed glass, would be wise to take appropriate safety precautions, such as wearing gloves and goggles to avoid these potential injuries when working with crushed or broken glass.
  
  

Damage to Feet

• Crushed glass can pose a health risk to bare feet or thin and unsupported footwear. Citizens of Prescott, Arizona on December 9, 2009 found this out when city workers began using a snow removal system that incorporated crushed glass. Workers sprayed the substance all over city streets and gutters forcing many to watch where they stepped, and where they drove throughout the day while removal teams attempted to clean it up.
  
  

Coarsley Crushed Glass

• Coarsely crushed glass can cause lacerations to the esophagus, if swallowed. In addition to throat damage, the glass could damage the gastrointestinal tract leading to slow bleeding, which could cause weakness and anemia. The person affected should seek medical attention, though the effects are not generally life threatening immediately.
  
  

Additional Risks

• Crushed glass can be an eye irritant if it's ground into a fine enough powder to be airborne. Skin can also potentially be irritated by crushed glass if there's enough moisture to cause rubbing though otherwise glass remains inert against the surface. Ingesting crushed glass is described as a "simple irritant" and there's no evidence to suggest repeated exposure poses any increased health risk.