title: OBSERVATIONS ON AIR POLLUTION ASPECTS OF IRAZ'U VOLCANO, COSTA RICA.
mesh_terms: D000397:Air Pollution; D002489:Central America; D003364:Costa Rica; D005128:Eye Diseases; D006801:Humans; D012140:Respiratory Tract Diseases
keywords: AIR POLLUTION; CENTRAL AMERICA; EYE DISEASES; RESPIRATORY TRACT DISEASES