The toxic air in the United States this week has flirted with the upper range of the 500-point scale. In the past decade, there have been times when the air quality was even worse.

T he air quality in Delhi-NCR is in the ‘severe plus’ category with the Air Quality Index (AQI) in most stations touching the 500-mark today, November 19. This is the seventh day that NCR has ...

Delhi AQI Crosses 500: 5 Tips To Naturally Cleanse Your Lungs. ... On Tuesday, the Air Quality Index (AQI) of the national capital touched 561, with Anand Vihar reportedly being the worst hit area.

On Monday, air quality levels in New Delhi skyrocketed, with 15 monitoring stations maxing out at an AQI of 500. The situation deteriorated significantly with PM2.5 concentrations hitting alarming ...

A thick layer of smog engulfed the National Capital on Sunday, and the Air Quality Index (AQI) continued to deteriorate, crossing the 500 mark, two days after Diwali. The government may soon ...

The National Weather Service says that the Environmental Protection Agency calculates the Air Quality Index — a value between 0 and 500 — based on five "major pollutants." ...

The AQI of Jahangirpuri had crossed 500 yesterday morning. Some blame the smoke of stubble for this, while others blame the smoke coming out of vehicles.

Now, the AQI ranges from 0 to 500, with higher numbers indicating worse air quality. An AQI of 0 to 100 signals air that is considered safe for most people, with minimal risk of health effects.

The Air Quality Index Explained: What It Means and How to Stay Safe. ... Ore., where the index almost reached 500 — the top of the scale — according to Robert Rohde, ...

The Air Quality Index measures particles in the air, but not how toxic they are, experts say. Support for LAist comes from. ... The index ranges from 0 to 500 and uses a color coded system: ...

The AQI uses a color-coded scale that ranks pollution levels from 0 (low) to 500 (very high), making it easier for people to understand air quality conditions and their associated health risks ...