One night in October 2005, farmer Liu ate a carp fished from the pond  Soon he suddenly felt dizzy, had unbearable abdominal pain, had spasms of hands and feet, vomited constantly, had a high fever, and soon died of gas  After detailed tests by the health department, Liu's death was related to eating carp
Great efforts should be made to popularize the knowledge of pesticide safety among farmers
 Environmentalists tested the water quality of the pond and found that as local farmers washed pesticide utensils in the pond for years, the fish slowly saved enough poison to kill people