Even though we should be able to enjoy all of the benefits of clean air, pollution is rapidly rising, particularly in cities. Carbon monoxide, sulfur oxides, nitrogen oxides, hydrocarbons, and particulate matter (PM) pose a danger and are frequently detectable. PM2.5 estimation is particularly significant in air quality. But what exactly is it, and how can we quantify it?
What is PM2.5?
We should learn more about this compound before we learn how to measure pm2.5. Particulate matter with a diameter of fewer than 2.5 microns is called PM2.5. This indicates that these particles are nearly 30 times smaller than human hair’s thickness. Although PM10 has a larger particle size and is much more visible, PM2.5, due to its size, has the potential to enter the lungs and even the bloodstream of humans and cause various health problems. In addition, this chemical can travel a great distance and contains numerous toxic substances. Primarily from combustion sources like vehicle exhaust, power plants, and wildfires, PM2 is produced.
How can PM2.5 be measured?
How do you measure PM2.5? Typically, an aerosol sampler or PM2.5 monitor is used to measure the amount of this compound. The two devices operate similarly, drawing in the air inside and calculating the PM concentration on a filter. The results are g/m3 (micrograms per cubic meter of air). The World Health Organization defines acceptable levels of PM as 25 g/m3 over 24 hours and 10 g/m3 annually.
But what exactly does PM2.5 indicate?
This compound has solid and liquid particles, making its composition quite intricate. However, organic matter, nitrate, sulfate, ammonium salt, carbon, and a few metal compounds are frequently the main components. Most of the chemicals on this list are bad for people’s health.
PM measurements can be taken indoors or outdoors, and you should select the appropriate instrument for your needs. Stay inside or, at the very least, wear a face mask to protect yourself whenever 2.5PM levels become excessive. You can also use air purifiers inside.
