The Final Demand-Intermediate Demand (FD-ID) system replaced the Producer Price Index (PPI) Stage-of-Processing (SOP) system as PPIs primary aggregation system with the release of data for January 2014. The FD-ID system expands coverage beyond that of the SOP system through the addition of services, construction, exports, and government purchases.
Ammonia Levels. Ammonia Levels. Ammonia smell in urine means possible health dangers, especially to rabbits. But here's a way to reduce or eliminate ammonia fumes and levels safely and easily.mmonia Levels. Ammonia smell in urine means possible health dangers, especially to rabbits. But here's a way to reduce or eliminate ammonia fumes and levels safely and easily.
Ammonia stress and ammonia poisoning are really the same thing. It is also referred to as nitrogen poisoning or nitrogen stress as well. Generally, though it is not referred to as 'poisoning' until you have actually lost a fish. Until that time, it is referred to as ammonia stress.t is also referred to as nitrogen poisoning or nitrogen stress as well. Generally, though it is not referred to as 'poisoning' until you have actually lost a fish. Until that time, it is referred to as ammonia stress.