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Title: Fisk-based criteria to support validation of detection methods for drinking water and air.

Abstract

This report was prepared to support the validation of analytical methods for threat contaminants under the U.S. Environmental Protection Agency (EPA) National Homeland Security Research Center (NHSRC) program. It is designed to serve as a resource for certain applications of benchmark and fate information for homeland security threat contaminants. The report identifies risk-based criteria from existing health benchmarks for drinking water and air for potential use as validation targets. The focus is on benchmarks for chronic public exposures. The priority sources are standard EPA concentration limits for drinking water and air, along with oral and inhalation toxicity values. Many contaminants identified as homeland security threats to drinking water or air would convert to other chemicals within minutes to hours of being released. For this reason, a fate analysis has been performed to identify potential transformation products and removal half-lives in air and water so appropriate forms can be targeted for detection over time. The risk-based criteria presented in this report to frame method validation are expected to be lower than actual operational targets based on realistic exposures following a release. Note that many target criteria provided in this report are taken from available benchmarks without assessing the underlying toxicological details.more » That is, although the relevance of the chemical form and analogues are evaluated, the toxicological interpretations and extrapolations conducted by the authoring organizations are not. It is also important to emphasize that such targets in the current analysis are not health-based advisory levels to guide homeland security responses. This integrated evaluation of chronic public benchmarks and contaminant fate has identified more than 200 risk-based criteria as method validation targets across numerous contaminants and fate products in drinking water and air combined. The gap in directly applicable values is considerable across the full set of threat contaminants, so preliminary indicators were developed from other well-documented benchmarks to serve as a starting point for validation efforts. By this approach, at least preliminary context is available for water or air, and sometimes both, for all chemicals on the NHSRC list that was provided for this evaluation. This means that a number of concentrations presented in this report represent indirect measures derived from related benchmarks or surrogate chemicals, as described within the many results tables provided in this report.« less

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USEPA
OSTI Identifier:
956923
Report Number(s):
EPA/600/R-08/021
TRN: US201014%%1710
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Technical Report
Country of Publication:
United States
Language:
ENGLISH
Subject:
54 ENVIRONMENTAL SCIENCES; AIR; BENCHMARKS; DETECTION; DRINKING WATER; EVALUATION; INHALATION; REMOVAL; SECURITY; TARGETS; TOXICITY; TRANSFORMATIONS; US EPA; VALIDATION; WATER

Citation Formats

MacDonell, M, Bhattacharyya, M, Finster, M, Williams, M, Picel, K, Chang, Y -S, Peterson, J, Adeshina, F, Sonich-Mullin, C, Environmental Science Division, and EPA,. Fisk-based criteria to support validation of detection methods for drinking water and air.. United States: N. p., 2009. Web. doi:10.2172/956923.
MacDonell, M, Bhattacharyya, M, Finster, M, Williams, M, Picel, K, Chang, Y -S, Peterson, J, Adeshina, F, Sonich-Mullin, C, Environmental Science Division, & EPA,. Fisk-based criteria to support validation of detection methods for drinking water and air.. United States. doi:10.2172/956923.
MacDonell, M, Bhattacharyya, M, Finster, M, Williams, M, Picel, K, Chang, Y -S, Peterson, J, Adeshina, F, Sonich-Mullin, C, Environmental Science Division, and EPA,. Wed . "Fisk-based criteria to support validation of detection methods for drinking water and air.". United States. doi:10.2172/956923. https://www.osti.gov/servlets/purl/956923.
@article{osti_956923,
title = {Fisk-based criteria to support validation of detection methods for drinking water and air.},
author = {MacDonell, M and Bhattacharyya, M and Finster, M and Williams, M and Picel, K and Chang, Y -S and Peterson, J and Adeshina, F and Sonich-Mullin, C and Environmental Science Division and EPA,},
abstractNote = {This report was prepared to support the validation of analytical methods for threat contaminants under the U.S. Environmental Protection Agency (EPA) National Homeland Security Research Center (NHSRC) program. It is designed to serve as a resource for certain applications of benchmark and fate information for homeland security threat contaminants. The report identifies risk-based criteria from existing health benchmarks for drinking water and air for potential use as validation targets. The focus is on benchmarks for chronic public exposures. The priority sources are standard EPA concentration limits for drinking water and air, along with oral and inhalation toxicity values. Many contaminants identified as homeland security threats to drinking water or air would convert to other chemicals within minutes to hours of being released. For this reason, a fate analysis has been performed to identify potential transformation products and removal half-lives in air and water so appropriate forms can be targeted for detection over time. The risk-based criteria presented in this report to frame method validation are expected to be lower than actual operational targets based on realistic exposures following a release. Note that many target criteria provided in this report are taken from available benchmarks without assessing the underlying toxicological details. That is, although the relevance of the chemical form and analogues are evaluated, the toxicological interpretations and extrapolations conducted by the authoring organizations are not. It is also important to emphasize that such targets in the current analysis are not health-based advisory levels to guide homeland security responses. This integrated evaluation of chronic public benchmarks and contaminant fate has identified more than 200 risk-based criteria as method validation targets across numerous contaminants and fate products in drinking water and air combined. The gap in directly applicable values is considerable across the full set of threat contaminants, so preliminary indicators were developed from other well-documented benchmarks to serve as a starting point for validation efforts. By this approach, at least preliminary context is available for water or air, and sometimes both, for all chemicals on the NHSRC list that was provided for this evaluation. This means that a number of concentrations presented in this report represent indirect measures derived from related benchmarks or surrogate chemicals, as described within the many results tables provided in this report.},
doi = {10.2172/956923},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {2}
}

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