Kalidad ning angin keng West Covina, Los Angeles, California

Ing particulate matter metung yang particulate matter a mas mababa keng 2.5 micrometers keng diametru na malyaring lungub keng baga ampo keng daya, a magdalang maragul a problema keng kalusugan. Ing pekamaragul a epektu na niti yapin ing baga ampo pusu. Ing panga-expose malyari yang magdalang ubo o kasakitan keng pamangisnawa, pamaglala ning asthma ampo ing pamag-develop ning chronic respiratory disease.