But as the fires burned through houses, cars and industrial areas, they spewed out vast amounts of smoke, ash and noxious ...

The city continued to experience "very poor" air quality, despite some improvement, as restrictions under the Graded Response ...

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A moderate level of air quality was reported in most cities across the country, according to the Sri Lanka Air Quality Index (SL AQI). However, good air quality was observed in Kegalle ...

The AQI is measured on a scale from 0 to 500, with the lower the number, the healthier the air. (Getty Creative) ...

The National Building Research Organisation (NBRO) warns that the Air Quality Index (AQI) has dropped to slightly unhealthy levels in Colombo ... The NBRO warned that during yesterday (26), SL AQI was ...

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New Delhi: According to the latest Air Quality Index (AQI) rankings from IQAir, Karachi and Lahore are listed among the most polluted cities in the world, based on data from a prominent global air ...

Angelenos still bothered by the smell of smoke may be surprised to see that Air Quality Index numbers returned to “healthy” or “moderate” levels this week in L.A. County, but they shouldn ...

Fine particulate matter is airborne microscopic dust and droplets smaller than 2.5 microns (PM2.5) in diameter. The composition of particulate matter depends on its source, the season and ...

“Just for perspective, we've now burned down [an area] like the entire city of San ... “The air quality index may say something, but that is totally not applicable to us walking on a site ...