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toxicity

Why is COVID-19 prompting questions about Proposition 65?

19 Aug 2020

The tentacles of COVID-19 reach into every area of life. I’ve been getting a flurry of calls about vacuum cleaners, air filters, and cordless hair clippers. Sales of these items have increased...

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.

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...

Artificial Turf, Real Issues

20 Mar 2017

There exists a simmering controversy about the safety of playing sports on artificial turf. For those who have engaged in any type of activity on this surface, you would know that they heat up in...

Crafty Kraft

20 Mar 2017

Kraft processed cheese singles, at least the full fat version, is not the same anymore. You won’t notice any change in taste though because the only difference will be a substitution of one...

Should we be concerned about parabens in cosmetics?

20 Mar 2017

Not if you look at the numbers. Many cosmetics now advertise "no parabens," as they cater to chemical paranoia. Parabens are very effective preservatives and prevent bacterial growth in creams and...

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