Complex sentence: On 20 December the Ministry of Environment announced an extra program to monitor the impact of radiation exposure on children born to mothers in Fukushima Prefecture, to find links between the mothers' radiation exposure and congenital abnormalities, asthma, allergies or other diseases of their children.
Split into simpler sentences: On 20 December the Ministry of Environment announced an extra program to monitor the impact of radiation exposure on children born to mothers in the prefecture Fukushima. To find links between the radiation exposure of the mothers and congenital abnormalities, asthma, allergies or other diseases of their children.