Understanding How the Air Quality Index Works #infographic

 

Understanding How the Air Quality Index Works #infographic

In recent months, air quality levels have gained a lot of attention.

Numerous places registered a marked rise in air quality in the aftermath of COVID-19 lockdowns. Northern India caught the attention of the world when the Himalayan mountain range was confirmed to be visible for the first time in decades.

On the flipside, wildfires spread through the Pacific Northwest and California later in the summer, blanketing whole areas with a dense shroud of smoke covering hundreds of miles.

How is air quality assessed, and what is included in the health ratings that we see?

Some countries measure their ratings in a slightly different way. India , for example, also tests ammonia levels, which leads in the air.

The AQI has a scoring system that runs from 0 to 500 to make these readings more available, using data obtained from air monitoring stations in cities around the world. Scores below 50 are deemed healthy, with little effect on human health. The higher the ranking, the poorer the air quality becomes.

Ranges of ratings have been grouped into descriptive categories to allow communicating possible health risks to the public much more easily.

Understanding How the Air Quality Index Works #infographic


infographic by: www.visualcapitalist.com


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