Atmospheric nitrogen, transformation within

As a result of the conducted studies the pattern of possible transformations and migration of sulphur and nitrogen oxides within the atmosphere of the investigated region taken as the experimental natural test-field is proposed (Figure 5). 

Nitrogen fixahon by enzymes transforms atmospheric nitrogen to ammonia and urea. Would it not be possible to imitate this by finding a catalyst for transforming nitrogen to ammonia And with moderate energy costs. This was in fact a challenge for a real enthusiast within physical chemistry ... 

Atmospheric N can enter aquatic systems either as direct deposition to water surfaces or as N deposition to the terrestrial portions of a watershed. Nitrogen deposited to the watershed is routed and transformed by watershed processes. It may eventually reach aquatic systems in forms only indirectly related to the original deposition. The transformations that N undergoes within the watershed (e.g., in soils, by microbial action, and in plants) play a major role in determining what forms and amounts of N eventually reach surface waters. Much of the challenge of determining when N deposition is... 

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