This directorate deals with the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
1) Department of Nitrogen in the air for Environmental Sustainability
This department deals with nitrogen component in the air, which is a colorless, odorless element. Nitrogen is in the soil under our feet, in the water we drink, and in the air we breathe. In fact, nitrogen is the most abundant element in Earth’s atmosphere: approximately 78% of the atmosphere is nitrogen!
2) Department of Oxygen in the air for Environmental Sustainability
This department deals with Oxygen which is an element in air. The stuff we breathe, the thing that makes our lives possible. It is an element, a basic chemical found on the earth. In fact, we don’t breathe pure oxygen; our air is about 20 percent oxygen. Still, oxygen is everywhere—it’s the third most common element on earth.
3) Department of Air Water Vapour for Environmental Sustainability
This department deals with air water vapor. Air water vapor can be produced from the evaporation or boiling of liquid water or from the sublimation of ice. Water vapor is transparent, like most constituents of the atmosphere
4) Department of Argon in the air for Environmental Sustainability
This department deals with argon in the air. It is a colorless and odorless gas element that is found in the air and in volcanic gases and used especially in electric bulbs.
Argon makes up 0.94% of the Earth’s atmosphere and is the third most abundant atmospheric gas. Levels have gradually increased since the Earth was formed because radioactive potassium-40 turns into argon as it decays. Argon is obtained commercially by the distillation of liquid air.
5) Department of Carbon dioxide in the air for Environmental Sustainability
This department deals with carbon dioxide in the air. It is an important greenhouse gas that helps to trap heat in our atmosphere. Without it, our planet would be inhospitably cold. However, an increase in CO2 concentrations in our atmosphere is causing average global temperatures to rise, disrupting other aspects of Earth’s climate.
6) Department of Trace Gases in the air for Environmental Sustainability
This department deals with trace gases in the air. These are gases that are present in small quantities within an environment such as a planet’s atmosphere.
Trace gases in Earth’s atmosphere are gases other than nitrogen (78.1%), oxygen (20.9%), and argon (0.934%) which, in combination, make up 99.934% of its atmosphere (not including water vapor)