Use of Risk Assessment for Development of Microbial Standards (Record no. 50880)

MARC details
000 -LEADER
fixed length control field 01902nam a2200193Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625160156.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-16710
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 250602s9999 xx |||||s2 |||| ||und|d
245 10 - TITLE STATEMENT
Title Use of Risk Assessment for Development of Microbial Standards
490 0# - SERIES STATEMENT
Volume/sequential designation Water Science & Technology, 24(2), p.29-34, 1991
520 3# - SUMMARY, ETC.
Summary, etc. A single-hit exponential model and a ?-distributed "infectivity probability" model were used to evaluate the potential health risks from drinking water containing low levels of protozoan cysts and viruses, respectively. The models were based on dose response curves developed from human feeding studies and assumed consumption of 2 L/day. The US EPA has suggested that one infection/10,000/year is an acceptable risk for infectious agents acquired through potable water. Based on this risk, acceptable levels of viruses and cysts were determined using the probability models. Thus poliovirus and rotavirus levels should not be more than 0.1 and 0.3 pfu/100L respectively per day. Giardia levels should be below 0.2 cysts/100L. To achieve a 1:10,000 annual risk, the geometric average should not exceed 10?3 organisms/100L. As monitoring treated water for these levels would be difficult, source waters may be monitored. Geometric averages of 1-100 organisms/100L require 3-5 logs of treatment reduction to achieve the 1:10,000 risk. The risk models for viruses and protozoa can be used to evaluate the occurrence of pathogens in source water and determine the appropriate treatment needed to obtain specific levels of safety for drinking water.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element MICROBIAL STANDARDS
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Rose, Joan B.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Gerba, Charles P.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/18cm-6dgsYeEaKZLlSGgtJnZ7yFjqJ-V-/view?usp=drivesdk">https://drive.google.com/file/d/18cm-6dgsYeEaKZLlSGgtJnZ7yFjqJ-V-/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Clasificación local
Koha item type Documentos solicitados
Holdings
Lost status Source of classification or shelving scheme Damaged status Not for loan Collection Home library Current library Shelving location Date acquired Total checkouts Full call number Date last seen Price effective from Koha item type
  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-16710 25.06.2025 25.06.2025 Documentos solicitados