id	keyword
american_scientific_journal-11450	radiation
american_scientific_journal-11450	background
american_scientific_journal-11450	dose
american_scientific_journal-11450	abuja
american_scientific_journal-11450	rate
american_scientific_journal-11450	area
american_scientific_journal-11450	background radiation
american_scientific_journal-11450	dose rate
american_scientific_journal-11450	nigeria
american_scientific_journal-11450	councils