CO2 monitoring - what it is in simple terms
Generally room CO2 can be used as a rough marker of fresh air in a given room. The higher the count, the more chances you are rebreathing air from another person. If that person has Covid-19, you will inhale infectious particles that will give you the disease. This neat spreadsheet from @davidelfstrom does the math, also described by Dr Richard Corsi.
Many classrooms in older buildings can have CO2 levels as high as 3000 ppm, in which 7% of the air in every breath you take comes directly from other people in that room.
You can use commonly available devices to measure your room CO2 levels. These are best done when the rooms are occupied. Generally you want levels to be as low as possible, as low as 700 ppm or lower.
ater basically. Fight global warminThe Atmosphere is a transparent envelope of gases and suspended particles that surround the Earth. Without Chemical processes involving several of the atmospheric gases, life could not exist. Even the physical processes that operate in the atmosphere are of vital importance because they are responsible for the Earth's varied climates. The Atmosphere is composed almost entirely of Oxygen and Nitrogen.
The Atmosphere is the source of every living thing in the world. It plays a very important role in serving the world's needs. It provides ventilation to the Earth, as the atmosphere filters the ultraviolet rays, coming from the Sun. Thus, it acts as the Earth's protective armour without which all living things in the world would die. The ozone layer is a matter of tremendous concern as it profoundly influences the environmental conditions on the planets surface. The Atmosphere provides the air we breathe, the food we eat, the water we drink and above all it supports LIFE.
Atmosphere is very imperative to sustain life on Earth. To protect the atmosphere it is possible and simple, avoid polluting the air and g by planting more trees and keeping your surrounding clean. You can reduce fuel consumption by using energy efficient appliances. We can preserve the atmosphere by practicing and encouraging good hygiene, reducing green house gases and emissions that are going into the air. Thus there are several solutions and ways that we can practice to protect the Earth's atmosphere. Effort is the key in life to your success.