Anti-vaxxers can’t do math

October 25, 2011

A posting at a “newspaper” (I use the term loosely here) called the Canadian entitled ” America’s Toxic Flu shots: 250 times EPA mercury limit” has been getting a bit of attention (and ridicule) lately. The same article appears to be posted at another site under the name “Flu Shots Contain More than 250 Times the EPA’s Safety Limit for Mercury“, both by someone called¬†Anthony Gucciardi. The article is riddled with factual errors, and actually identifies well-known quack Russel Blaylock as a “leading neurologist”. But without even going into all the factual errors, which have been pointed out elsewhere (such as here), the article has fundamental math errors that¬† make it even more laughable.

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Methylmercury and fish consumption

June 9, 2011

After a bit of a break, I’m getting back to my series of posts related to mercury. This time I’ll focus on methylmercury, which is generally considered to be one of the “nastier” forms, since it is relatively toxic (primarily neurotoxicity, but also believed to cause cardiovascular and reproductive toxicity at high doses) and also bioaccumulates in animals. Since the main source of methylmercury exposure is food, and in particular fish, I’ll look at how the amount of mercury in fish relates to potential effects on humans.

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The many faces of mercury

March 24, 2011

This is the third in a series of posts about mercury (see also Part 1 on measuring mercury exposure and Part 2 on sources of mercury exposure).

It’s easy to think of mercury as a single substance. However, there are several different forms of mercury, which exhibit very different behaviour in the environment and in the human body. Today I’m going to briefly introduce some of the different mercury compounds, where they come from and what happens to them; future posts in this series will focus on the effects of some of the key mercury compounds.

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