In the rare chance that there is a microorganism that can make you sick on the exact spot where the food dropped, you can be fairly sure that the bug is on the food you are about to put in your mouth.

Halophilic Microorganism is widely distributed in globe, among which Psychropliles and Psychrotrophs have been much more studied.

Based on the experiment of biofilm A/O process, the feasibility of brief-nitrification in attached microorganism system is studied.