Swimming Pools Contaminated by Trichloroethylene

[Guest guest]

tiny url = http://tinyurl.com/cpa6y3

Exposure and Health Risk from Swimming in Outdoor Pools Contaminated

by Trichloroethylene

Authors: Blando1; Cohn2

Source: Human and Ecological Risk Assessment, Volume 10, Number 4,

August 2004 , pp. 717-731(15)

Publisher: and Francis Ltd

Abstract:

A method was developed that evaluated the exposure and health risk to

children from swimming in outdoor pools filled with contaminated

water. It was found that dermal absorption of trichloroethylene (TCE)

was significantly larger than the inhalation component of the

exposures. It was estimated that the inhalation route accounted for

only 1% of the total exposure, whereas accidental ingestion was 7% of

the child's total intake and the dermal absorbed dose was 92% of the

total exposure. The relative percentage of the total exposure

estimated for each exposure route indicated that the dermal exposure

route and accidental ingestion of pool water should not be ignored for

volatile compounds when evaluating exposure. The method utilized was

simple enough to use computer spreadsheets for the calculations and

can be easily adapted to various swimming scenarios and age groups.

This method also included an assessment of the uncertainty in the

exposure and risk estimates. The range of estimated exposures was 40

mgr g to 442 mgr g of TCE per swimming season. All values in this

range were below the health benchmark for both non-carcinogenic and

carcinogenic endpoints.

Keywords: swimming; pools; dermal; well water; trichloroethylene; TCE; children

Document Type: Research article

DOI: 10.1080/10807030490484183

Affiliations: 1: New Jersey Department of Health and Senior Services,

Occupational Health Services, Trenton, New Jersey, USA 2: New Jersey

Department of Health and Senior Services, Consumer and Environmental

Health Service, Trenton, New Jersey, USA

http://www.ingentaconnect.com/content/tandf/bher/2004/00000010/00000004/art00010

[Guest guest]

Are pool chemicals different these days? I remember people swimming in

pools daily and not dying from cancer or any other way than from

natural causes.

Barth

h> tiny url = http://tinyurl.com/cpa6y3

h> Exposure and Health Risk from Swimming in Outdoor Pools Contaminated

h> by Trichloroethylene

h> Authors: Blando1; Cohn2

h> Source: Human and Ecological Risk Assessment, Volume 10, Number 4,

h> August 2004 , pp. 717-731(15)

h> Publisher: and Francis Ltd

h> Abstract:

h> A method was developed that evaluated the exposure and health risk to

h> children from swimming in outdoor pools filled with contaminated

h> water. It was found that dermal absorption of trichloroethylene (TCE)

h> was significantly larger than the inhalation component of the

h> exposures. It was estimated that the inhalation route accounted for

h> only 1% of the total exposure, whereas accidental ingestion was 7% of

h> the child's total intake and the dermal absorbed dose was 92% of the

h> total exposure. The relative percentage of the total exposure

h> estimated for each exposure route indicated that the dermal exposure

h> route and accidental ingestion of pool water should not be ignored for

h> volatile compounds when evaluating exposure. The method utilized was

h> simple enough to use computer spreadsheets for the calculations and

h> can be easily adapted to various swimming scenarios and age groups.

h> This method also included an assessment of the uncertainty in the

h> exposure and risk estimates. The range of estimated exposures was 40

h> mgr g to 442 mgr g of TCE per swimming season. All values in this

h> range were below the health benchmark for both non-carcinogenic and

h> carcinogenic endpoints.

h> Keywords: swimming; pools; dermal; well water; trichloroethylene; TCE;

children

h> Document Type: Research article

h> DOI: 10.1080/10807030490484183

h> Affiliations: 1: New Jersey Department of Health and Senior Services,

h> Occupational Health Services, Trenton, New Jersey, USA 2: New Jersey

h> Department of Health and Senior Services, Consumer and Environmental

h> Health Service, Trenton, New Jersey, USA

h>

http://www.ingentaconnect.com/content/tandf/bher/2004/00000010/00000004/art00010

[Guest guest]

Swimming pools are generally treated with chlorine and/or sodium hypochlorite.

What happens is that small molecular weight chlorinated brominated hydrocabons

are produced. These are referred to as trihalomethanes, triahaloethanes, etc.

These compounds have been associated with adverse health effects and some can be

mutagenic. In addition, water used to fill the pool can be contaminated with

TCE, PCE and other chlorinated solvents. Thus, the water contains

trihalomethanes, etc. as well as TCE, etc. The TCE, PCE, etc. are routinely

found in well waters throughput the U.S. and other parts of the world. There are

EPA and WHO recommendations regarding safe drinking water contamination of all

of these compounds. Be my guest and look them up for yourself. I personally

believe if they are carcinogenic and mutagenic then the safe levels do not mean

anything.

Jack D. Thrasher, Ph.D.

Toxicologist/Immunotoxicologist/Fetaltoxicologist

www.drthrasher.org

toxicologist1@...

Off: 916-745-4703

Cell: 575-937-1150

L. Crawley, M.ED., LADC

Trauma Specialist

sandracrawley@...

916-745-4703 - Off

775-309-3994 - Cell

This message and any attachments forwarded with it is to be considered

privileged and confidential. The forwarding or redistribution of this message

(and any attachments) without my prior written consent is strictly prohibited

and may violate privacy laws. Once the intended purpose of this message has been

served, please destroy the original message contents. If you have received this

message in error, please reply immediately to advise the sender of the

miscommunication and then delete the message and any copies you have printed.

Thank you in advance for your compliance.

[Guest guest]

We don't use chlorine or salt water(it makes chlorine) in my pool, but a product

that kills fungus. I forgot what it is called.

Is there anything that can be added to the water to kill anything harmful in the

water before treating it?

>

>

> tiny url = http://tinyurl.com/cpa6y3

>

> Exposure and Health Risk from Swimming in Outdoor Pools Contaminated

> by Trichloroethylene

>

> Authors: Blando1; Cohn2

> Source: Human and Ecological Risk Assessment, Volume 10, Number 4,

> August 2004 , pp. 717-731(15)

> Publisher: and Francis Ltd

>

>

[Guest guest]

Dr. Thrasher,

Is there any way to filter TCE and PCE out? Will carbon filtering work?

Thanks,

Sam

Swimming pools are generally treated with chlorine and/or sodium

hypochlorite. What happens is that small molecular weight chlorinated

brominated hydrocabons are produced. These are referred to as trihalomethanes,

triahaloethanes, etc.