The 2001 Humber Refinery explosion occurred in the parish that has a population of what, as of 2011?
2001 Humber Refinery explosion: The 2001 Humber Refinery explosion was a major incident at the then Conoco-owned Humber Refinery at South Killingholme in North Lincolnshire, England. South Killingholme: South Killingholme is a village and civil parish in North Lincolnshire, England.
i don't know