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toxicity

What is "Hormesis"?

24 Jan 2020

Just about every textbook of toxicology pays homage to Paracelsus, the sixteenth century alchemist. Why? Because he introduced the idea that “only the dose makes the poison.” It makes no sense to...

Is Dental Floss Toxic?

18 Jan 2019

A recently published paper in the Journal of Exposure Science & Environmental Epidemiology managed to create a great deal of public angst about using some types of dental floss. “This is the...

What is the difference between organic and inorganic arsenic?

30 Aug 2018

Atoms of arsenic can combine with atoms of other elements to form a variety of compounds. These can be divided into two categories, “inorganic” and “organic.” In this case, the term “organic” is...

The Chlorpyrifos Controversy

7 Jun 2017

“Science not silence,” screamed the signs carried by many of the marchers in a number of American cities last Earth Day.

Antimony!

20 Mar 2017

Picture this. You swallow a little pill, wait until it irritates your intestines enough to expel its contents and then hunt through the expelled excrement to retrieve the pill. Why? So you can use...

What are the risks of eating steak tartare?

20 Mar 2017

Terrible story about seven people sickened, one very seriously, from eating steak tartare at a Montreal restaurant. Eating raw meat is a risky business, but poisoning from steak tartare is rare...

Lead - A stain on chocolate?

20 Mar 2017

Lead is nasty. Since the body has a tough time eliminating it, exposure to very small amounts can cause poisoning over the long term. Diagnosis of lead poisoning is challenging because of the...

Are Foam Puzzle Mats Toxic for Children?

20 Mar 2017

There was a question about the possible toxicity of the popular foam puzzle mats that children play with and on. The concern is about exposure to formamide being released. This chemical is used in...

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