Furthermore, once a particle has reached that size, it continues to grow rapidly because the equilibrium concentration of ammonia and nitric acid above ammonium nitrate is much lower for larger ...

However, the study published in Nature demonstrates that, in cold climates, nitric acid can boost particle growth to a marked degree, and even form particles together with ammonia in temperatures ...

A particle composition analyzer identified the long?searched for nitric acid trihydrate (NAT) particles that will extend chlorine activation in the polar stratosphere, leading to dramatic ozone ...

To evaluate and interpret the Cloud experiments, researchers parameterized the measured nucleation of nitric acid, sulfuric acid and ammonia and implemented this into a global aerosol-climate model.