Children from 3 southern Ukraine villages (Chausovo, Michurino and Pidgirye) were hospitalised following pollution of soil by nitrates and nitrites causing redness, sleepiness, loss of appetite and vision disorder. The children of a 4th village (Boleslavchyk) may have been evacuated the same way. 330 people including 170 children were hospitalised in three weeks. The governor of Ukraine set up a special enquiry committee to identify the reasons behind the events.