Is Formaldehyde lurking in your life?

[Guest guest]

" Researchers from the National Cancer Institute have reported that industrial

workers who are exposed to formaldehyde may be at an increased risk of dying

from blood and lymphohematopoietic malignancies, particularly myeloid leukemia

but also Hodgkin’s lymphoma and multiple myeloma, according to the results of a

study published in the Journal of the National Cancer Institute.

" Formaldehyde is a chemical that is widely used in industrial plants as a

preservative or disinfectant. It has been classified as a carcinogen because of

its association with nasopharyngeal cancer. Furthermore, it has been shown that

the risk of leukemia increases as peak exposure to formaldehyde increases.

" The National Cancer Institute’s formaldehyde cohort includes a group of 25,619

workers who were employed in one of 10 industrial plants before 1966. The plants

either manufactured formaldehyde or used it. The original study included deaths

through 1979. The study was then extended to include deaths from 1980 to 1994.

Now researchers have extended this study a third time to include deaths through

2004.

" The researchers evaluated peak exposure, average intensity, and cumulative

exposure. For each job, they estimated the continuous eight-hour, time-weighted

average formaldehyde intensity, referred to as TWA8. This exposure was expressed

in parts per million (ppm) and divided into categories: 0-.5 ppm, .5-2.0 ppm,

2.0-4.0 ppm, or greater than 4.0 ppm. A peak exposure was defined as a

short-term exposure (less than 15 minutes) that exceeded the TWA8 category.

" After a follow-up of over 40 years, the researchers found a statistically

significant association between peak formaldehyde exposure and death from all

blood and lymphatic cancers combined. Workers with the highest peak exposures

were 37% more likely to die from lymphohematopoietic malignancies than those

with the lowest level of peak exposures. Furthermore, the risk of death from

myeloid leukemia was 78% higher among workers with the highest peak exposure to

formaldehyde compared with those with the lowest peak exposures. "

Comments: These researchers concluded that there is a possible link between

formaldehyde exposure and blood and lymphatic cancers. They believe that further

study is warranted.

Reference:

Beane Freeman LE, Blair A, Lubin JH, et al. Mortality from lymphohematopoietic

malignancies among workers in formaldehyde industries: The National Cancer

Institute Cohort. Journal of the National Cancer Institute. 2009; 101: 751-761.

FYI,

Lottie

[Guest guest]

Lottie,

Thanks for this article. As an OR nurse, we used formaldehyde all the time

for our specimens. I did not sit and breathe it in, but did use it every

day. Along with being exposed to xrays during procedures, I have no boubt

that this contributed to my CML. Can't prove it, but I do suspect it.