How to Test for Ozone Contamination, Ozone Damage & for for Related Ozone-Related Outgassing Hazards Due to Oxidized Materials
"Ozone is a highly toxic gas but even highly toxic substances can be encountered safely. The main concern with this material is that concentrations to which people are exposed do not average more than
0.1 ppm over an 8-hr day, and do not exceed that value by more than a factor of 2 or 3 during the exposure." 
OZONE TESTS - How to Test for Ozone Contamination, Ozone Damage & for for Related Ozone-Related Outgassing Hazards Due to Oxidized Materials
Because ozone is highly volatile and is not likely to remain present in a building
unless an ozone generating device is operating, we do not normally include
ozone testing in building IAQ screening measurements for gases.
In exceptional circumstances
we may test an indoor environment for ozone levels. Normally we do not, as this
gas is so volatile and reactive that it would not be expected to remain in an
However, the byproducts of using ozone gas at high concentrations
and durations indoors (for example during a "mold remediation using ozone" may oxidize and cause outgassing from other building
Tests for Ozone in Indoor Air using gas pumps and colorimetric gas detection tubes
When circumstances warrant, I would screen for a variety of common
outgassing products such as formaldehyde, benzene, formic acid and other acid gases, toluene and related gases. Our tests for these gases are described in our clients' sampling plan.
I also may apply one or more of the three sets of
multiple-gas hazard screen systems provided by Drager for the fire investigator
At high or low levels (various test sensitivities are available) produced by
popular indoor air "purifiers" and by commercial treatments for odors is a
highly-reactive oxidizing gas which is dangerous to lung tissue itself.
gas may react with other building materials (as an oxidant) to produce
secondary outgassing products which are also irritants or potentially unsafe.
Ozone is highly reactive and volatile and may not be present in a building long
after it was applied. Choice of use or omit this screen depends on the
circumstances of the particular investigation.
As a regular practice I include
this screen for ozone where such equipment is in use (to detect dangerous current levels)
or where commercial equipment has been very recently in use. Sensidyne™ #182SB
2.5-100 ppm / #182U 0.025 - 3.0 ppm.
Benzene 0.5/a: If there is a particular concern for Benzene I perform a test for this
substance. I select a sampling tube which is not Benzene specific in order to
also screen for other aromatic hydrocarbons including toluene, xylene (more
likely to be in carpet out gassing than benzene) and ethel benzene.
sensitivity is 0.4 to 10 ppm (40 to 2 strokes). +/30%.
because this gas is produced at virtually all house fires and because it is a
well-known respiratory and eye irritant produced by many building materials
even without combustion effects, if there are owner/occupant complaints, this
test may be performed using the Gastec pump and tubes produced by Sensidyne or
by the Draeger accuro pump and their tubes.
Sensitivity 0.2 to 2.5 / 0.5 to 5
ppm at 10 / 20 strokes. Alternative:
Sensidyne ™ Gastec™ 91/L 0.1-40.0 ppm
Formic acid 1/a: because
this gas screen addresses acid gases which can be expected to be produced by
fire, heat, or oxidation (such as from ozone treatment) in commercial and
residential properties it is an important screen for this topic. Our test
sensitivity 1 to 15 ppm, 20 strokes.
Toluene 5/b: because this is one of the
most sensitive gas screens available to address gases which can be expected to
be produced by fire, heat, or oxidation (such as from ozone treatment) in
commercial and residential properties it is an important screen for this
Toluol is a common contaminant produced by oxidized or burning
carpets. Our test sensitivity 5-300 ppm
Testing or monitoring for ozone exposure using badges
Several companies provide low-cost badge systems for monitoring the exposure of workers (or others) to ozone gas.
In our OPINION badges for ozone monitoring, while entirely suitable for an industrial environment, are unlikely to be useful for consumers or building owners who are concerned with the effects of short-term use of ozone in buildings or other enclosed spaces, such as services marketed for building deodorizing or mold "remediation".
OPINION: It might be possible to use an ozone detection badge to examine the actual ozone level in an enclosed space where an ozone generator or ozone "air purifier" is in use, but we warn that drawing any conclusions about the actual ozone exposure of building occupants in such cases will be confounded by difficulties in constructing and maintaining a controlled environment.
Watch out: ozone detection badges may have a limited shelf life and may require storage in a refrigerator prior to use.
Ozone exposure monitoring badges range in price from about $10. U.S. to $130. U.S.
 Ozone Solutions, Inc., 451 Black Forest Rd., Hull, IA 51239 USA, Tel: 888 892-0303
Testing or monitoring for ozone exposure using ozone monitoring or ozone detection equipment
Several companies offer electronic instruments used for monitoring ozone gases in air or water as well as equipment that may be used to monitor for related gases or contaminants. Typically these machines measure the level of ozone in parts per billion in air (ppb of ozone in air). Handheld ozone gas level monitors range in price from around $300. U.S. to $3000. and of course vary in intended use.
 2B Technologies, 2100 Central Avenue Suite 105, Boulder, Colorado 80301 Tel: (303) 273-0559, produces Ozone detection equipment, [question on ozone detection in human urine, pending 12/19/11 - ed.]
 Cerex Monitoring Solutions, LLC., 1816 Briarwood Industrial Ct., Suite D, Atlanta, Georgia 30329
Tel: 678-570-6662 Email: email@example.com. Cerex has offices in many countries worldwide.
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is not a substitute for mold removal and its reaction with building materials,
but applied by an expert may help deodorize, a cleaning article by Jim Holland -
 Ozone as an oxidant, a few references from the Canadian Government
H., Campbell K. S., and Appel, W. D. (1952). The oxidation of cellulose by ozone in small
concentrations. Text. Res. J. 22: 81-83.
C. E., and Haagen-Smit, A. J. (1951). The application of rubber in the
quantitative determination of ozone. Rubber Chem. Technol. 24: 750-755.
Cass, G. R., Nazaroff, W. W., Tiller, C., and Whitmore, P. M. (1991). Protection of
works of art from damage due to atmospheric ozone. Atmospheric Environment,
25A( 2): 441-451.
Druzik, J. R. (1985). Ozone: The Intractable Problem. We stern Association for Art
Conservation newsletter. Http://sul-server-2.stanford.edu/waac/wn/wn07/wn07-3/wn07-302.html
(vol.7, no. 3)
 "Health Hazards of some Gases" Jack E. Peterson, P.E., CIH, Ph.D., May, 1987
 Ozone Gas Hazards Description in our article
"Effects of Toxic Gas Exposure to Ammonia, Arsine Arsenic Bromine Carbon Dioxide Carbon Monoxide Hydride Ozone & others"
 "Laundry Ozone FAQ", Water Energy Laundry Consulting, 9741 Tappenbeck, Suite 1000, Houston, TX 77055 Tel: (713) 464-2580; web search 12/17/11, original source laundryconsulting.com/solution/
 "Ozone acting on human blood yields a hormetic dose-response relationship", Velio A Bocci, Iacopo Zanardi,& Valter Travagli, J Transl Med. 2011; 9: 66. Published online 2011 May 17. doi: 10.1186/1479-5876-9-66 - Quoting the article abstract:
The aim of this paper is to analyze why ozone can be medically useful when it dissolves in blood or in other biological fluids. In reviewing a number of clinical studies performed in Peripheral Arterial Diseases (PAD) during the last decades, it has been possible to confirm the long-held view that the inverted U-shaped curve, typical of the hormesis concept, is suitable to represent the therapeutic activity exerted by the so-called ozonated autohemotherapy. The quantitative and qualitative aspects of human blood ozonation have been also critically reviewed in regard to the biological, therapeutic and safety of ozone. It is hoped that this gas, although toxic for the pulmonary system during prolonged inhalation, will be soon recognized as a useful agent in oxidative-stress related diseases, joining other medical gases recently thought to be of therapeutic importance. Finally, the elucidation of the mechanisms of action of ozone as well as the obtained results in PAD may encourage clinical scientists to evaluate ozone therapy in vascular diseases in comparison to the current therapies.
 Petras T, Siems W, Grune T. 4-Hydroxynonenal is degraded to mercapturic acid conjugate in rat kidney. Free Radic Biol Med. 1995;19(5):685–688. doi: 10.1016/0891-5849(95)00060-B
Sampling for gases in air such as VOC's, MVOC's, toxic chemicals, and combustion products.
Unfortunately no single test or tool can detect all possible building contaminants. We use methods and equipment which can test for common
contaminants. If the identity of a specific contaminant is known in advance we can also test for a very large number of specific contaminant
gases in buildings.
We use gas sampling equipment provided by the two most reliable companies
in the world, Draeger-Safety's detector-tubes and Drager accuro bellows pump, the Gastec cylinder pump
and detector-tube system produced by Gastec or Sensidyne, and
we also use Sensidyne's Gilian air pump. For broad screening for combustibles and a number of other
toxic gases and for leak tracing we also use Amprobe's Tif8850. All of these instruments, their applications, and sensitivities (minimum detectable limits) for specific
gases are described in our Gas Sampling Plan online document.
Kansas State University, department of plant pathology, extension plant pathology web page on wheat rust fungus: see http://www.oznet.ksu.edu/path-ext/factSheets/Wheat/Wheat%20Leaf%20Rust.asp
"A Brief Guide to Mold, Moisture, and Your Home",
U.S. Environmental Protection Agency US EPA - includes basic advice for building owners, occupants, and mold cleanup operations. See http://www.epa.gov/mold/moldguide.htm
US EPA - Mold Remediation in Schools and Commercial Building [Copy on file at /sickhouse/EPA_Mold_Remediation_in_Schools.pdf ] - US EPA
US EPA - Una Breva Guia a Moho - Hongo [Copy on file as /sickhouse/EPA_Moho_Guia_sp.pdf - en Espanol
"IgG Food Allergy Testing by ELISA/EIA, What do they really tell us?" Sheryl B. Miller, MT (ASCP), PhD, Clinical Laboratory Director, Bastyr University Natural Health Clinic - ELISA testing accuracy: Here is an example of Miller's critique of ELISA
http://www.betterhealthusa.com/public/282.cfm - Townsend Letter for Doctors and Patients
The critique included in that article raises compelling questions about IgG testing assays, which prompts our interest in actually screening for the presence of high levels of particles that could carry allergens - dog dander or cat dander in the case at hand.
http://www.tldp.com/issue/174/IgG%20Food%20Allergy.html contains similar criticism in another venue but interestingly by the same author, Sheryl Miller. Sheryl Miller, MT (ASCP), PhD, is an Immunologist and Associate Professor of Basic and Medical Sciences at Bastyr University in Bothell, Washington. She is also the Laboratory Director of the Bastyr Natural Health Clinic Laboratory.
Allergens: Testing for the level of exposure to animal allergens is discussed at http://www.animalhealthchannel.com/animalallergy/diagnosis.shtml (lab animal exposure study is interesting because it involves a higher exposure level in some cases
Allergens: WebMD discusses allergy tests for humans at webmd.com/allergies/allergy-tests
Atlas of Clinical Fungi, 2nd Ed., GS deHoog, J Guarro, J Gene, & MJ Figueras, Centraalbureau voor Schimmelcultures, Universitat Rovira I Virgili, 2000, ISBN 90-70351-43-9 (you can buy this book at Amazon) - The Atlas of Clinical Fungi is also available on CD ROM
"Disease Prevention in Home Vegetable Gardens,"
Department of Plant Microbiology and Pathology,
Department of Horticulture, University of Missouri Extension - extension.missouri.edu/publications/DisplayPub.aspx?P=G6202
Fifth Kingdom, Bryce Kendrick, ISBN13: 9781585100224, is available from the InspectAPedia online bookstore - we recommend the CD-ROM version of this book. This 3rd/edition is a compact but comprehensive encyclopedia of all things mycological. Every aspect of the fungi, from aflatoxin to zppspores, with an accessible blend of verve and wit. The 24 chapters are filled with up-to-date information of classification, yeast, lichens, spore dispersal, allergies, ecology, genetics, plant pathology, predatory fungi, biological control, mutualistic symbioses with animals and plants, fungi as food, food spoilage and mycotoxins.
Carson, Dunlop & Associates Ltd., 120 Carlton Street Suite 407, Toronto ON M5A 4K2. Tel: (416) 964-9415 1-800-268-7070 Email: firstname.lastname@example.org. The firm provides professional home inspection services & home inspection education & publications. Alan Carson is a past president of ASHI, the American Society of Home Inspectors. Thanks to Alan Carson and Bob Dunlop, for permission for InspectAPedia to use text excerpts from The Home Reference Book & illustrations from The Illustrated Home. Carson Dunlop Associates' provides extensive home inspection education and report writing material.
The Illustrated Home illustrates construction details and building components, a reference for owners & inspectors. Special Offer: For a 5% discount on any number of copies of the Illustrated Home purchased as a single order Enter INSPECTAILL in the order payment page "Promo/Redemption" space.
TECHNICAL REFERENCE GUIDE to manufacturer's model and serial number information for heating and cooling equipment, useful for determining the age of heating boilers, furnaces, water heaters is provided by Carson Dunlop, Associates, Toronto - Carson Dunlop Weldon & Associates Special Offer: Carson Dunlop Associates offers InspectAPedia readers in the U.S.A. a 5% discount on any number of copies of the Technical Reference Guide purchased as a single order. Just enter INSPECTATRG in the order payment page "Promo/Redemption" space.
The Home Reference Book - the Encyclopedia of Homes, Carson Dunlop & Associates, Toronto, Ontario, 25th Ed., 2012, is a bound volume of more than 450 illustrated pages that assist home inspectors and home owners in the inspection and detection of problems on buildings. The text is intended as a reference guide to help building owners operate and maintain their home effectively. Field inspection worksheets are included at the back of the volume.
Special Offer: For a 10% discount on any number of copies of the Home Reference Book purchased as a single order. Enter INSPECTAHRB in the order payment page "Promo/Redemption" space. InspectAPedia.com editor Daniel Friedman is a contributing author.
Special Offer: Carson Dunlop Associates offers InspectAPedia readers in the U.S.A. a 5% discount on these courses: Enter INSPECTAHITP in the order payment page "Promo/Redemption" space. InspectAPedia.com editor Daniel Friedman is a contributing author.
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