Thli Quality in West Covina, Los Angeles, California

Particulate matter chu micrometer 2.5 aia sei lo, lung leh thisen chhunga lut thei, hriselna lama harsatna lian tak thlen thei a ni. A nghawng na ber chu lung leh thinlungah a ni. Exposure hian khuh emaw thawk harsatna emaw a thlen thei a, asthma a tizual a, thawkna lama natna khirh tak a nei thei bawk.