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Q: Cancerous emissions ( Answered 5 out of 5 stars,   2 Comments )
Subject: Cancerous emissions
Category: Health > Conditions and Diseases
Asked by: awh1984-ga
List Price: $10.00
Posted: 18 Jul 2005 23:24 PDT
Expires: 17 Aug 2005 23:24 PDT
Question ID: 545216
My AC is leaking r134a into the passenger compartment of my '95 Ford
Ranger. I have not had it fixed yet, so I replace it once or twice
during the summer months when I use the AC. When I initially replace
the refrigerant, I can smell it being leaked. Presumably, it continues
to leak even after it is no longer noticeable after the pressure
drops. So my simple concern is this: Is r134a carcinogenic?
Subject: Re: Cancerous emissions
Answered By: pafalafa-ga on 19 Jul 2005 05:00 PDT
Rated:5 out of 5 stars
Chemical manufacturers are required to prepare documents known as an
MSDS -- Material Safety Data Sheet -- for their chemicals they sell.

The MSDS for R134a can be seen here:

by clicking on the text, "MSDS - R134a"

The MSDS indicates that small exposures to R134a are note expected to
pose a toxic hazard.

In particular, the cancer-causing effects of R134a are characterized this way:


Material Safety Data Sheet

Carcinogenicity Information
None of the components present in this material at concentrations
equal to or greater than 0.1% are listed by IARC, NTP, OSHA or ACGIH
as a carcinogen.

In other words, none of the major national (US) or international
agencies with oversight for cancer-causing chemicals has classified
R134a as a carcinogen.

Hope this is what you were after.   But if you need any additional
information, just let me know by posting a Request for Clarification.


search strategy -- Google search on [ r134a msds ]
awh1984-ga rated this answer:5 out of 5 stars
Thank  you for your very useful and succinct answer; this is exactly
what I was after.

Subject: Re: Cancerous emissions
From: borisshah-ga on 19 Jul 2005 04:29 PDT
Hi There.

Maybe this article can help you out with your question:
Subject: Re: Cancerous emissions
From: awh1984-ga on 26 Jun 2006 17:32 PDT
thanks borisshah!

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