What town on the Castletown River was the home of a famous radiologist who lived from 1900-1979
Dundalk Dundalk ( , Irish: "Dún Dealgan" , meaning "Dalgan's fort" ) is the county town of County Louth, Ireland. It is on the Castletown River, which flows into Dundalk Bay, and is near the border with Northern Ireland, halfway between Dublin and Belfast. It has associations with the mythical warrior hero Cú Chulainn.
1948 Donora smog The 1948 Donora smog was a historic air inversion that resulted in a wall of smog that killed 20 people and sickened 7,000 more in Donora, Pennsylvania, a mill town on the Monongahela River, 24 mi southeast of Pittsburgh. The event is commemorated by the Donora Smog Museum.