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11 Cards in this Set
- Front
- Back
playas |
used as recreation sites and habitat for migrating waterfowl. |
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what is the playa problem? |
microbial contamination by coliforms and enteric bacteria from human and animal waste |
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what are coliforms? |
gram negative, non-spore forming, rod that ferments lactose with gas formation |
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water borne pathogens |
bacteria, virus, protozoa, helmiths, algae |
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bacteria enteritis, diarrhea, and dysentery |
e.coli, slamonella, shigella |
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enteric fever |
typhoid salmonella typhi |
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paralysis |
botulism-clostridium botulinum |
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water microbiology viruses |
enteritis, diarrhea, and dysentery (rotavirus, norwalk) flu like liver damage virus (hep A, hep E) paralysis (polio-poliovirus) |
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protozoa |
giardia-diarrhea, cryptosporidia, ameoeba-amoebiasis (entamoeba histolytica) |
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helmith |
round worm- ascariasis tape worm- anemia, diarrhea hook worm |
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how to determine microbes in the water? |
number of pathogens in water supply may be small indicator organisms are used to determine if fecal contamination has occurred most common indicator organism--> coliforms |