Gaseous ammonia (NH 3) is the most abundant alkaline gas in the atmosphere. In addition,
it is a major component of total reactive nitrogen. The largest source of NH 3 emissions is …

Dry deposition can account for a large portion of the removal of trace chemicals from the
troposphere. Resistance schemes used in modeling often perform quite well in daytime …

The global emission of ammonia (NH3) is about 54 Mt N. The major global sources are
excreta from domestic animals and fertilizers, but oceans, biomass burning and crops are …

This paper presents an explorative, quantitative analysis of acidification and eutrophication
of natural terrestrial ecosystems caused by excess sulfur (S) and nitrogen (N) deposition …

Human activity has greatly perturbed the nitrogen cycle through increased fixation by
legumes, by energy and fertilizer production, and by the mobilization of N from long-term …

The parametrization of surface exchange of acidifying pollutants and ozone described is
based on the resistance analogy, outlining the aerodynamics resistance R a, the quasi …

Eleven instruments for the measurement of ambient concentrations of atmospheric ammonia
gas (NH 3), based on eight different measurement methods were inter-compared above an …

The atmosphere in Europe is polluted by easily available nitrogen (ammonium and nitrate)
mainly from livestock (NH 3), traffic (NO x) and stationary combustion sources (NO x). The …

Two case studies are performed to improve ammonia emissions inputs used to model fine
particulate matter (PM2. 5 is the portion of particulate matter smaller than 2.5 μm …

The 6 billion people alive today consume about 25 million tonnes of protein nitrogen each
year, a requirement that could well increase to 40–45 million tonnes by 2050. Most of them …