Journal article
On the Poisson assumption for analysis of MPN results
Proceedings Annual Conference American Water Works Association. Denver, Colo, pp.1551-1560
01 Jan 1986
Abstract
Results of 1335 coliforms analysis by dilution analysis of the raw water at the Jardine water treatment works between 1978 and 1980 were analysed statistically, based on a hypothetical Poisson distribution among replicates within samples. A modified Moran test was applied. A series of Monte Carlo experiments was also conducted. A greater than anticipated number of simulated experiments failed the Kolmogorov-Smirnov statistic but not at a level of significance as high as that for actual data. Actual results showed a significant deviation from the hypothesis of random error and/or only one organism being required to initiate a positive coliform result. Commonly accepted hypotheses for the calculation of Most Probable Numbers (MPN) from dilution tests might not be universally valid.
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Details
- Title
- On the Poisson assumption for analysis of MPN results
- Creators
- C HaasB Heller
- Publication Details
- Proceedings Annual Conference American Water Works Association. Denver, Colo, pp.1551-1560
- Conference
- Annual Conference American Water Works Association (Denver, Colorado, United States)
- Number of pages
- 1
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Identifiers
- 991019189315204721