id	keyword
ajoaa-1194	oil
ajoaa-1194	pollution
ajoaa-1194	environmental
ajoaa-1194	nigeria
ajoaa-1194	impact
ajoaa-1194	delta
ajoaa-1194	activities
ajoaa-1194	state
ajoaa-1194	journal
ajoaa-1194	farmers
ajoaa-1194	study