Question: The 2001 Humber Refinery explosion occurred in the parish that has a population of what, as of 2011?
Sentence (from "Texas City Refinery explosion"): The Texas City Refinery explosion occurred on March 23, 2005, when a hydrocarbon vapor cloud was ignited and violently exploded at the ISOM isomerization process unit at BP's Texas City refinery in Texas City, Texas, killing 15 workers, injuring more than 180 others and severely damaging the refinery.
Relevant evidence: No