Determination of chlorinated dibenzo-p-dioxins and chlorinated dibenzofurans in ambient air : proceedings of a workshop, September 17, 1989, Toronto, Ontario, Canada

148 Pages·1992·7 MB·English

by  Clement, R. E

DETERMINATION OF CHLORINATED
DIBENZO-P-DIOXINS AND CHLORINATED
DIBENZOFURANS IN AMBIENT AIR
WORKSHOP PROCEEDINGS
DECEMBER 1992
Environment Bei Environment Environnement
Environnement Canada Canada
Ontario
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ISBN 0-7778-0242-2
DETERMINATION OF CHLORINATED DIBENZO-P-DIOXINS
AND CHLORINATED DIBENZOFURANS IN AMBIENT AIR
WORKSHOP PROCEEDINGS
DECEMBER 1992
©
Cette publication technique
n’est disponible qu’en anglais.
Copyright: Queen’s Printer for Ontario, 1992
This publication may be reproduced for non-commercial purposes
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DETERMINATION OF CHLORINATED DIBENZO-P-DiOXINS
AND CHLORINATED DIBENZOFURANS IN AMBIENT AIR
Proceedings of a Workshop
September 17, 1989, Toronto, Ontario, Canada
DECEMBER 1992
Edited by R.E. Clement
Environment Ontario, Laboratory Services Branch
125 Resources Road (P.O. Box 213), Rexdale, Ontario
Work Sponsored by the Canadian Council of Environment Ministers,
Environment Ontario and Environment Canada
Log 92-2731-005
PIBS 2241

Preface
One of the most challenging tasks in analytical chemistry is the determination of the
chlorinated dibenzo-p-dioxins (dioxins) and chlorinated dibenzofurans (furans) in real
environmental samples. This is so because of the very low concentrations that must be
detected and quantitatively measured, because it is very difficult to separate the
dioxins/furans from other sample components that are present at much greater
concentrations, and because only 17 of the 210 different dioxins/furans are considered
to have appreciable toxicity.
The measurement of dioxins/furans in ambient air is of special importance, because the
principal mechanism for the spread of these compounds in the environment is thought
to be long-range atmospheric transport. For the past few years, Environment Ontario
and Environment Canada have been working to develop effective methods of measuring
dioxins and furans in ambient air so that their sources, transport, and fate in the
environment can be studied. This work has been sponsored by the Canadian Council
of Environment Ministers.
To share the results of this development work with the Canadian laboratory community,
a workshop was held September 17, 1989 - to correspond with the 9th International
Symposium on Chlorinated Dioxins and Related Compounds which was held in Toronto
September 18-22. This report contains complete descriptions of the sampling and
analysis methodologies that were discussed at the workshop.
Ray E. Clement
Toronto, Ontario
September, 1992
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TABLE OF CONTENTS
Preface
CHAPTER 1 Ambient Monitoring for PCDDs/PCDFs
Critical Factors in Sampling Network Design
Program Objectives and Primary Design Considerations ............
General! Siting (Considerations yi snes eenbe een.
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DurahOn'Of Sampling SESSION. En -) o0 sss soc oe Wie ee
Quality Assurance/Quality Control ..........................
IREPETENCES Sees exch ee Seek Ree Loo Ae COE ae
CHAPTER 2
Ontario Ministry of the Environment .........................
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ENSR:Consultins and Engineering 05.0... ce.
REfCTENCES RSA an de aa LE EN ha PR Us de Ie ee
CHAPTER 3
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CHAPTER 3 (Continued)
Analytical Procedures for Quantitative Measurement
of PCDD/PCDF in Samples from an Ambient Air Sampler .........
Separation of PCDD/PCDF from Major Matrix Components
and Other Chemical Residues Contained in the Extract
Gas Chromatographic-Mass Spectrometric Procedures .............
for Quantitating PCDD/PCDF in Ambient Air Extracts
GC and MS Calibration Procedures nie ve) eho, te eli ew sine le he )eple; alin) feli e) shele) dites
Criteria for Qualitative Identification of PCDD/PCDF .............
Problems Commonly Encountered in Analyses of Ambient
Air and Other Samples for PCDD/PCDF and Actions to
Mitigate These
Typical Data Obtained in the Analyses of Ambient Air
Samples for PCDD/PCDF
References
CHAPTER 4 High Resolution Mass Spectrometric Method for the Analysis of
Polychiorinated Dibenzo-p-dioxins and Dibenzofurans in Ambient
Air Samples
Personnel Safety
Waste Disposal
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Sample Preparation
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Instrumental Analysis
Quality Assurance
Results Comparison - LRMS vs HRMS
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