According to the AQEWS bulletin, “The air quality is expected to remain in the very poor category from Wednesday to Friday.

Amid worsening AQI, the authorities have implemented curbs under GRAP III, on recommendation of the Centre-led CAQM.

The advisories impact large areas of Idaho, Oregon, Montana and Washington, lasting through the end of January.

All implementing agencies have been requested to maintain strict vigilance and intensify steps of the extant schedule of GRAP ...

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...