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 toxicity. Ammonia toxicity: Introduction. Ammonia toxicity: At room temperature, ammonia (NH3) is a highly water-soluble, colourless, irritant gas with a unique pungent odour. See detailed information below for a list of 14 causes of Ammonia toxicity, including diseases and drug side effect causes.