Huge amounts of ammonia (NH3) between 12 and 15 km height, were found in the Earth's lowest atmospheric layer with highest emissions of the gas encountered in North India and Southeast China.
Scientists of Karlsruhe Institute of Technology (KIT) in Germany together with researchers from US and Mexico analysed satellite measurements by the MIPAS found this ammonia in the area of the Asian monsoon.
The gas is responsible for the formation of aerosols, smallest particles that might contribute to cloud formation.
Ammonia, a chemical compound of nitrogen and hydrogen, mainly originates from agricultural processes, in particular from life-stock farming and fertilisation.
Gaseous ammonia reacts with acids, such as sulfuric acid or nitric acid. However, ammonia does not only pollute the ecosystems.
In this connection, it is important to determine vertical distribution of atmospheric ammonia.
The research was published in the journal Atmospheric Chemistry and Physics.