Occurrence and control of naegleria fowleri in well water chlorine resistance

Charles P Gerba, Barbara Blair, Payal Sarkar, Kelly R Bright

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The goal of this project was to determine the occurrence of the N. fowleri in well water. The presence of Naegleria fowleri was confirmed in 8.3% of the wells sampled. Re-testing of a subset of wells suggests that some wells are colonized by the organism. Laboratory experiments with N. fowleri cysts and trophozoites indicate that the Ct (concentration of disinfectant X time) for free chlorine is 6 for the trophozoite form and 31 for the cysts at 23 0C. These Ct values for N. fowleri cysts were comparable to published values for Giardia cysts but much greater than those for Cryptosporidium oocysts.

Original languageEnglish (US)
Title of host publicationAmerican Water Works Association - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality
Pages1582-1596
Number of pages15
StatePublished - 2007
EventWater Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality - Charlotte, NC, United States
Duration: Nov 4 2007Nov 8 2007

Other

OtherWater Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality
CountryUnited States
CityCharlotte, NC
Period11/4/0711/8/07

Fingerprint

Disinfectants
cyst
well water
Chlorine
chlorine
water
Testing
laboratory experiment
well
Values
Water
Experiments
time

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Water Science and Technology
  • Geography, Planning and Development

Cite this

Gerba, C. P., Blair, B., Sarkar, P., & Bright, K. R. (2007). Occurrence and control of naegleria fowleri in well water chlorine resistance. In American Water Works Association - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality (pp. 1582-1596)

Occurrence and control of naegleria fowleri in well water chlorine resistance. / Gerba, Charles P; Blair, Barbara; Sarkar, Payal; Bright, Kelly R.

American Water Works Association - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality. 2007. p. 1582-1596.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gerba, CP, Blair, B, Sarkar, P & Bright, KR 2007, Occurrence and control of naegleria fowleri in well water chlorine resistance. in American Water Works Association - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality. pp. 1582-1596, Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality, Charlotte, NC, United States, 11/4/07.
Gerba CP, Blair B, Sarkar P, Bright KR. Occurrence and control of naegleria fowleri in well water chlorine resistance. In American Water Works Association - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality. 2007. p. 1582-1596
Gerba, Charles P ; Blair, Barbara ; Sarkar, Payal ; Bright, Kelly R. / Occurrence and control of naegleria fowleri in well water chlorine resistance. American Water Works Association - Water Quality Technology Conference and Exposition 2007: Fast Tracks to Water Quality. 2007. pp. 1582-1596
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