ScienceForDummies: Air Quality

Hello! I took the air quality idea from one of last week's suggestions. We'll talk about,

* what is air quality

* how to measure it

Air quality can be defined as the degree to which the air is suitable or clean enough for humans or the environment, typically to breathe. What makes air quality bad are harmful substances and pollutants in the air, often a result of human activity. 

There are six major airborne pollutants, that is ground level ozone, carbon monoxide, sulfur dioxide, nitrogen dioxide, and particulate matter. When theres air pollution, it means there is a bad amount of these airborne pollutants in the air.

To measure it we use something called the AQI, or air quality index. It measures air quality in a numerical system:

If it is considered 0-50, the air quality is satisfactory and poses no risk. This is considered "good".

If it is considered 51-100, the air quality is acceptable and poses risks only to certain people. This is considered "moderate".

If it is considered 101-150, the air quality is only that bad for particular groups of people. This is sort of "moderate+".

If it is considered 151-200, there's a risk for everybody. This is considered "unhealthy".

The last two (201-250), (251-300) are Very Unhealthy and Hazardous. This causes all of the public to have serious health issues.

Most of the readers here are from Jakarta. As of the time of writing this (13 October 2024), Jakarta's AQI ranking is 151. The more inner you are in the city, the higher. 

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