id	keyword
american_scientific_journal-7369	microplastic
american_scientific_journal-7369	galuga
american_scientific_journal-7369	water
american_scientific_journal-7369	galuga landfill
american_scientific_journal-7369	particles
american_scientific_journal-7369	area
american_scientific_journal-7369	river
american_scientific_journal-7369	landfill area
american_scientific_journal-7369	chi
american_scientific_journal-7369	square
american_scientific_journal-7369	waste
american_scientific_journal-7369	types
american_scientific_journal-7369	analysis