Is there more oxygen in the air when it rains?

So apart from this apparent change in the constitution of the air, there is absolutely no change in the amount of oxygen, due to rainfall. As the air becomes more full of water vapor, we describe it as being "muggy" and some people experience a slight increase in difficulty of breathing.

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Thereof, how did covid affect air quality?

The coronavirus pandemic has changed the way we live, and several studies have documented how those widespread changes in human behavior have impacted the environment. NASA scientists and others using data from NASA and our partner satellites have shown that air pollution levels dropped significantly during COVID-19. Keeping this in consideration, why does the residential area often get smoggy? Since residential areas have all the essential sources for the emission of particles that are responsible for the formation of smog e.g. fuel emissions from traffic and cooking, industrial emissions and dust. Therefore, they often get smoggy.

Subsequently, does rain wash away dust?

Yes. As a raindrop falls down through the atmosphere, it collects airborne particles such as dust, smoke and soot, and carries them to the ground. (For example, a droplet's electrical charge makes a major difference in its ability to attract particles.) But in general, rain is great for improving air quality. Also, why does air get clean after rain? Rain eases this problem by forcing down the most common air pollutants, like particulate matter and pollen down. Thereby, the quality of air becomes drastically better. It is the natural process that eliminates the material through atmospheric hydrometeors, like rain, hail, and snow.

How much does rain clean the air?

Data shows that rain has a relatively small impact on reducing air pollutants (0-30%). The most notable impact was during extremely heavy rain, where air pollutants were reduced up to 30%. Can you drink rain water straight from the sky? It is possible, therefore, for us to drink untreated rainwater. This is because rainwater is pure, distilled water evaporated from the sun - nothing else. However, when rainwater falls from the sky, substances from the air and land melt into the rainwater. This water (groundwater) is relatively safe for drinking.