Experts: on the use od OZONE

[Guest guest]

From: " Carl E. Grimes " <grimes@...>

Date: Mon Oct 11, 2004 1:29 pm

Subject: Re: []^ Ozone educational web sites

This is my last comment on this ozone discussion: Ozone is not

enriched oxygen. Ozone is a pollutant. The two have different

properties.

Carl Grimes

Healthy Habitats LLC

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From: " Jim H. White " <systemsa@...>

Date: Sat Jun 25, 2005 1:20 pm

Subject: Re: [iequality] IAQ in central ac systems systemsa@...

iequality/message/3299

Ozone generators and/or ozone should never be used in occupied

spaces as it

does lung damage even at low concentrations. Any employee

satisfaction can

be due to damage smell sensors in the nasal passages, not in a real

improvement. See Health Canada

(http://www.hc-sc.gc.ca/hecs-sesc/cps/publications/ozone.htm

http://www.hc-sc.gc.ca/hecs-sesc/cps/publications/ozone_qa.htm) and

the US

EPA (http://www.epa.gov/iaq/pubs/ozonegen.html

http://www.epa.gov/iaq/pubs/airclean.html) sites for reasons why you

should

not use ozone indoors.

Jim H. White SSAL

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From: Jeff May <Jeff@...>

Date: Thu Oct 7, 2004 10:31 pm

Subject: Re: Ozone for killing mold

1. Common indoor molds (Penicillium, Aspergillus, Cladosporium, etc.)

are NOT wood-destroying organisms (many cannot even digest

cellulose),

so they do not consume wood in our houses. Even Stachybotrys, which

can

be cellulolytic, does not destroy wood; these molds are called

microfungi. Brown rots and white rots (mushroom-forming fungi or

macrofungi) destroy wood, digesting either cellulose, lignin or

both..

Though there are outdoor (and indoor) spores in the air, mold is not

all

around us and in every room (unless in a very problem environment).

4. As Jim Holland noted in a previous e-mail, FDA-approved ozone

generators do NOT inhibit the growth of fungi or even kill spores. On

the other hand, many ozone generators create concentrations of ozone

above the FDA limit of .05 ppm. (Anyone with an ionizer or ozone

generator concerned about ozone concentrations can purchase a two-

test

kit from IQAir for about $8.)

5. Filtration is the most effective means to remove aerosolized

particulates.

6. Air purifiers may remove spores from the air, but they do NOT

control

mold. As you noted, the only way to control mold growth is to control

relative humidity and water. It is foolish to spend money on any

type of

air purifier without eliminating the obvious sources of spores first.

Jeff May

Author, " The Mold Survival Guide "

s Hopkins University Press

>1. Our focus should first be protecting ourselves from the effects

of

mold spores... and secondly protecting out home from mold... We must

remember that mold to grow must consume cellulose thus mold in a

home is

slowly consuming the wood from which the house was built.. Mold is

all

around us and in every room... What affects us is a high

concentration

of mold spores; at a certain level we become affected... Good

ventilation and controlled humidity

are important... A sealed building invites mold development.

>4. Ozone generators can inhibit growth of fungi/mold.. The mustiness

of a mildewed room can be controlled/eliminated by ozone generators..

>5. Ion generators electrify the air and make it difficult for mold

spores to float thus making it somewhat difficult for the eyes and

nose

to be troubled by the " spore dust " ..

>6. Some air purifiers work and work well at controlling mold but

many

do not.... I'd only buy one with a satisfaction guarantee where you

get

your money back within 20 days if it doesn't work to your

satisfaction...

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From: RLLIPSEY87@...

Date: Wed May 28, 2003 8:53 am

Subject: Re: [] Digest Number 1636

Ozone is a toxic chemical whether it is produced naturally in a

thunderstorm or

produced by ozonators or " air purifiers " (or sold by any other

name) .

Ozone is an OSHA regulated toxic chemical which is 500 times

more toxic than carbon monoxide (CO) that kills hundreds of people

each year. The federal air standard for ozone is only 0.1 ppm while

it is 50 ppm for CO. Ozone attacks mucous membranes, ie the lungs,

and causes chronic respiratory disease.

NIOSH has published that ozone is not very effective in killing

mold or bacteria. Ozone is not " controversial " . It is toxic and

dangerous and not effective in controlling mold or bacteria and

should never be used in a room with people present, even to remove

odors ie smoke damage odors.

Dr. L. Lipsey

Professor and Toxicologist

University of North Florida,

---OSHA HazMat Cert.

U. of Florida Med. Ctr, Jax

Poison Control Center Board

CV--Toxicology And Environmental Health Assoc

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From: RLLIPSEY87@...

Date: Tue Sep 6, 2005 8:42 am

Subject: Re: [] Digest Number 2563 RLLIPSEY87@...

All the talk about Ozone machines on this site concern me.

OZONE is relatively ineffective against mold but very effective

against

odors according to NIOSH, US Public Health Service. They may be

called Ionizing

machines or even air cleaners or 100 different names as dealers are

trying to

hide the fact that they are nothing by ozone generators. NEVER allow

these

machines to be used with people present in offices or homes. You

never know

just how much ozone they are actually emitting. I have served as an

expert

witness where these companies were sued.

OZONE is also 500 times more toxic than carbon monoxide gas and 100

times

more toxic than hydrogen cyanide gas used in Nazi concentration

camps (NIOSH

Pocket Guide to Chemical Hazards, 1997 comparing OSHA

PEL's )..............so

why use these machines in homes?

Ultrasound bug killers are in the same class, or lack of class, in

that

mosquitos do NOT hear ultrasound, nor do cockroaches, so why should

ultrasound

machines drive them away. I put on a debate at the national meeting

of the

Entomological Society of America many years ago in Detroit with EPA

officers

present to hear first hand that those machines are absolutely

useless...........and the EPA officers commented that they cannot

protect the

public from

harmless and useless devices and " let the buyer beware " .

Dr. L. Lipsey ( 904 ) 398-2168

Toxicologist and Instructor

University of North Florida, HazMat/OSHA

Univ. Fla. Medical Center Jax, Poison Control Board

Fla. Comm. College Jax, Institute of Occ. Safety & Health

www.richardlipsey.com

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Professor Shaughnessy, University of Tulsa

Docent Aino Nevalainen, KTL

Ulla Haverinen-Shaughnessy, PhD

-shaughnessy@...

Shaughnessy is program manager for the Indoor Air Pollution

Research Center at the University of Tulsa. He oversees IAQ training

efforts for the U.S. Environmental Protection Agency and serves as a

consultant to the Consumer Product Safety Commission on its review

of ozone-generating air cleaners

International Society of Indoor Air Quality and Climate (ISIAQ)

Secretary, Shaughnessy

J. Shaughnessy, Ph.D., received his Ph.D. in Chemical

Engineering from the University of Tulsa. He has served as Program

Director of IAQ Research at the University of Tulsa since 1987. He

has taught and conducted research abroad in locations including

Singapore, China, Australia, Philippines, and South Africa. He has

published extensively on indoor air with respect to his research and

studies. Dr. Shaughnessy has worked on U.S.EPA grant projects since

1990 encompassing issues such as training development, course

delivery and outreach, schools investigations, and implementation of

the Tools for Schools Program. His interests are primarily in

particulate research, air cleaner evaluation, indoor chemistry,

school studies, flooring studies, asthma/housing research, and

studies related to resolution and remediation of bioaerosol-related

problems. He served on the ACGIH Bioaerosols Committee from 1996

through December, 2003 and contributed to the writing of the 1999

ACGIH " Bioaerosols Assessment and Control " Document. He is the

primary author of two chapters of the book pertaining to prevention

and control, and remediation. He was a primary task force member and

moderator for the recent 2003 ACGIH-sponsored Symposium on Mold

Remediation. He assisted in the development of IICRC's S-520

document on mold remediation, serving on the Standards Committee and

the S-520 Editing Committee. He was appointed in September, 2003 to

the Oklahoma legislative task force on mold, and is currently

developing recommendations to the legislature on mold-related

legislation. He has recently been invited (December, 2003) by the

American Society of Microbiology (Washington, DC) to participate,

with a select group of 6 coauthors, in developing an informational

brochure on addressing mold in the indoor environment, for the

purpose of formulating reasonable legislation in the U.S. Congress.

He has recently been appointed (Jan, 2004) by AIHA to the

Management/Editorial Committee overseeing the development of

extensive new guidance related to best practices in addressing the

evaluation, assessment and remediation of mold in the indoor

environment. He is also assisting the NYC DOH on new guidance that

is being promulgated (January, 2004) related to worker protection in

mold remediation situations. He has recently been appointed

(December, 2003) for a three year term to the Board of Directors for

the International Society on Indoor Air Quality (ISIAQ).

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Subject: Aerotech Laboratories, IAQ Tech Tip #62: Ozone Generators

and IAQ

Date: Tue, 9 Oct 2001 13:47:29 -0700

Ozone Generators and IAQ

With the considerable recent media attention focused on the issues

of indoor air quality, microbial contaminants in particular, ozone

is once again being touted as a remedy for all manner of indoor air

quality concerns. Marketing literature from distributors of ozone

generators boast claims of eliminating microbial contaminants

through the use of ozone. One website claims " Ozone helps kill mold

and mold odors with large ozone dose shock treatments " and " Ozone

may be the only way to save your home from deadly mold " . The

propaganda goes as far as claiming that ozone destroys mold leaving

only oxygen, hydrogen and carbon dioxide. These are the kind of

unsubstantiated claims that led to a $1.49 million civil penalty

against Alpine Industries in April of 2001 and a Court Order to

cease making health claims for its ozone generators. A recent study

has demonstrated that gas phase ozone is ineffective in reducing the

viability of Penicillium spores on building materials at levels as

high as 9 parts per million (ppm), levels that are much higher than

those attainable under field conditions (Appl.Occup.Environ.Hyg. 12

(8), August 1997). Recent studies have also implicated a synergistic

effect between fungal spores and ozone and increased symptoms of

asthma in asthma patients using an inhaler on an as-needed basis

(Am.J.Respir.Crit.Care.Med. 154(3 Pt 1):633-41, Sept. 1996).

The U.S. Occupational Safety and Health Administration (OSHA) limits

ozone exposure in industrial settings to 0.1 ppm over an eight hour

day, six days per week. The Food and Drug Administration has set a

limit of 0.05 ppm for the ozone generated from electronic air

cleaners used as medical devices. The Environmental Protection

Agency has stated:

Available evidence shows that, at concentrations that do not exceed

public health standards, ozone is generally ineffective in

controlling indoor air pollution. The concentration of ozone would

have to greatly exceed health standards to be effective in removing

most indoor air contaminants

To read the entire EPA article please visit " Ozone Generators that

are Sold as Air Cleaners "

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" Jim H. White " <systemsa@...>

fourbrownpaws

Re: [iequality] Ionizing air cleaners

Smogwatcher

Almost all of these are just ozone machines renamed. ozone kills

lung tissue and makes asthma worse.

Why are you considering one of these nefarious machine?

See the California publications on ozone machines in occupied

dwellings. In Canada, Health Canada also strongly recommends against

them. The US EPA is against them, but not quite as vehemently.

Jim H. White System Science Consulting