READ ME This text describes the data presented in the paper: ======================== Introductory information ======================== Files included in the data deposit are in support of the publication Flow-cytometric quantification of microbial cells on sand from water biofilters: 1)NumericalMaterial.xls This file contains 5 sheets each of it refers to one pf the experiment described in the paper. The data refer to the events counted using a FAC-Scan system. When replicates are not shown average of the three replicates are reported with the standard deviation. 1.Sonication: The four replicates at each time point of the total cells detected 2.Dispersant: Average of three replicates after 3 steps of sonication for each dispersant 3.Sonic-Shaking: Average and standard deviation at each time point for shaking and sonicatitng 4.Fixative: Average and standard deviation of total cell number at each time point for different fixative solution 5.Corr: Total cells value (average of three replicates) measured per each methods ========================== Methodological information ========================== A brief method description – what the data is, how and why it was collected or created, and how it was processed: The values reported are all number of events collected over 1 min of collection on a FAC-Scan flowcytometer. ========================= Data-specific information ========================= Definitions of names, labels, acronyms or specialist terminology uses for variables, records and their values: For interpretation of the acronyms-please check the paper. The same labels have been used. ======= Contact ======= Please contact marta.vignola@glasgow.ac.uk for further information