Delhi boruak a chhe zual, AQI-in 400 a tling

Delhi khawpui boruak a bawlhhlawh chho leh tawh a, nimin khan khawpui Air Quality Index (AQI) chuan 400 a tling leh tawh. AQI 400 chunglam hi mihring hriselna atana hlauhawm pha, 'severe' range a tling a ni.