New weapons against water pollution

Ricefish, a 4 cm long fish that is often cultivated in Japan, has been used by the Shizuoka government to establish "an alarm system b. "fish" as one of the alarming measures of poisoned water, especially water sources that some terrorists deliberately release poison.

At that time, this fish often has unusual behavior, such as swimming in the nose position close to the water due to difficulty breathing, or simply . dying. An official in charge of the project said that the "fish alarm system" was very effective because the water purification equipment needed up to 15 hours to "detect" the contamination, while ricefish only needed 3. Now it is detected.

Shizuoka prefecture started using ricefish testing last year at two water plants in Hamamatsu city and will soon equip this "alarm system" across the province.