Nitrogen trifluoride (NF3).
As it is not a Greenhouse Gas, ammonia (NH3) is not listed. However, the legislation makes provisions for other gas levels not listed to be monitored too, making it likely targets could also be put in place on ammonia emissions.
Targets will also be set for nitrogen-use efficiency, meaning further scrutiny of farm fertiliser use is almost inevitable.
The nitrogen budget will take into account all major flows of nitrogen in Northern Ireland; e.g. in its waters, atmosphere, and soil.
It will set annual targets to improve nitrogen efficiency, which it defines as the ratio of nitrogen removed from the environment compared to the total nitrogen added to the environment.