Central Pollution Control Board, CPCB chuan Pathianni khan Delhi boruak chu hlauhawm chhinchhiahna aia let li vela sang a ni tih an sawi a, boruak thianghlim zawng tehna, Air Quality Index-ah 301 a ni mek tih an sawi bawk a ni. Inrinni kal ta khan Delhi boruak thianghlim zawng hi 324 a lo ni tawh a, CPCB chuan Delhi boruak hi a thianghlim chhoh leh mai a rinawm loh tih an sawi a, a chhe zual chho zel rih dawn tih an sawi bawk a ni. Delhi-ah hian kum tin November thla vel a\angin boruak thianghlim zawng a tlahniam \hin a, boruak a vawh deuh avangin lirthei leh thil siamna hmunpui a\anga meikhu chhuak-te chu boruak-ah a cham rei deuh \hin a ni.
