PCB Half-Life   2 comments

The half-life of a chemical is defined as:

the period of time it takes for a substance undergoing decay to decrease by half

Scientists have many questions about the path of polychlorinated biphenyls (PCBs) once they enter the human body. A recently published article in Environmental Health Perspectives examines the half-life of PCBs within the human biological system:

Our results are further evidence that a maximum intrinsic elimination half-life for persistent chemicals such as PCBs exists and is approximately 10-15 years.

In other words, PCBs hang around for a long time. Once PCBs enter your body, it will take 10-15 years for half of the initially consumed amount to pass out of your body, on average. These findings are an important contribution to our understanding of PCB activity within biological systems and confirm the notion that PCBs linger in our bodies long after we consume them. To read more about this study, click here.


Posted October 20, 2010 by lymphomactivist in Uncategorized

2 responses to “PCB Half-Life

Subscribe to comments with RSS.

  1. Educational, interesting and frightening, as per usual. It’s amazing to think that these chemicals can lurk in our bodies for that long!

  2. If the half-life is 10-15 years, that means that some of those pesky chemicals are still hanging around in our system for 30 or 40 years after they were first consumed. I didn’t think anything in my life could possibly stay constant for that long, but corporate manufacturers have proved me wrong! Way to go Monsanto!

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

%d bloggers like this: