Giardiasis is an infection of the small intestine caused by the protozoan parasite Giardia lamblia. Giardia is one of the most common causes of waterborne disease in humans in the U.S. and Canada, and is the most frequent cause of non-bacterial diarrhea in North America.
While there have been improvements to mining practices in recent years, significant environmental risks remain. Negative impacts can vary from the sedimentation caused by poorly built roads during exploration through to the sediment, and disturbance of water during mine construction. Water pollution from mine waste rock and tailings may need to be managed for decades, if not centuries, after closure.