Aloha CF group,
I would like to propose the following standard names related to water
quality measurements of the bacteria *Enterococcus *and *Clostridium
perfringens*:
number_concentration_of_enterococcus_in_sea_water
number_concentration_of_clostridium_perfringens_in_sea_water
These are normally measured with units of CFU/100 mL, where CFU stands
for Colony-Forming
Units <
http://en.wikipedia.org/wiki/Colony-forming_unit>. I believe the
canonical units in UDUNITS parlance would translate to "m-3", which is what
I find in the standard name table for other number_concentration_*
quantities.
For descriptions of each, I would propose:
number_concentration_of_enterococcus_in_sea_water:
"Number concentration" means the number of particles or other specified
objects per unit volume. In this context, it represents the number of
colony-forming units (CFU) of bacteria belonging to the genus Enterococcus.
This indicator bacteria has been correlated with the presence of human
pathogens (disease-causing organisms) and therefore with human illnesses
such as gastroenteritis, diarrhea, and various infections in
epidemiological studies. As such, it is commonly measured in beach water
quality monitoring programs.
number_concentration_of_clostridium_perfringens_in_sea_water:
"Number concentration" means the number of particles or other specified
objects per unit volume. In this context, it represents the number of
colony-forming units (CFU) of bacteria belonging to the species Clostridium
perfringens. Because this bacteria is a normal component of the human
intestinal tract, its presence in samples of sea water can be used as a
tracer of sewage contamination. As such, it is commonly measured in beach
water quality monitoring programs.
Thanks,
John Maurer
Pacific Islands Ocean Observing System (PacIOOS)
University of Hawaii at Manoa
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Received on Thu Mar 21 2013 - 14:12:29 GMT
