Higher-than-usual nitrogen oxide and carbon monoxide levels were registered, it told BNS.
According to Ieva Krikstopaityte of the Environmental Protection Department, the requirements were not breached, but whether the annual permissible level of air pollution was exceeded will only be known at the end of the year.
"A malfunction occurred at the Jonava electricity substation, disrupting the supply of power to the Achema fertilizer plant. That triggered a shutdown of most of Achema's production units," Achema Technical Director Juozas Tunaitis said in comment.
Achema is the largest ammonia fertilizer producer in the Baltic countries.