chemistry

What does the label actually mean?

Anyone else confused by the stamps on different types of plastics? You know the ones that look like a recycling symbol with a number inside? What about the idea that a plastic is biodegradable but only under certain conditions? Or perhaps which ones are going to breakdown into microplastics? I work into sustainability and about … Continue reading →

Trees store air pollutants

I’ve written before about the role of urban trees. They contribute to a number of positive outcomes. A newer area of research is whether the trees actually absorb air pollutants. Klingborn et al (2022) examined the levels of a specific type of pollutant in both deciduous (leafy) trees and coniferous (cone bearing) trees. They found … Continue reading →

Curiosity didn’t kill the cat

Saving the Metals From Batteries

Batteries are incredibly useful technologies and key to many sustainable technologies. Unfortunately, the chemicals in batteries pose a huge environmental problem themselves. But a new study by Xiao et al (2021) may have a solution or at least an improvement over the current situation. Ultrasound is a relatively common imaging technology. It uses sound waves … Continue reading →

Nanoparticles for nano-potholes?

I live in a winter city. Potholes are a reality on our roads, splits on our sidewalks, and cracks in our foundations. The number of construction stories here that include some version of “they had to replace the materials because they warped or broke in the extreme cold” is plentiful. But the thing is, these … Continue reading →

What’s in a (female’s) title?

The old John Cleese show Fawlty Towers had an episode that has always stuck in my mind. A couple is checking into the hotel and Cleese’s character Basil becomes ever more confused because the couple challenge his patriarchal views of the world. You see, both the husband and wife are doctors and therefore check-in as … Continue reading →

Cortisol and Anxiety

Somebody asked me about the relationship between hormones and anxiety so I did some research and found some really interesting information about cortisol and anxiety. Rather than focus on a particular study I’m going to just go through some of the more interesting connections. Cortisol is a long-term (more than 3 minutes) stress hormone that … Continue reading →

Turkey, seratonin, and uncertainty

We just had Canadian Thanksgiving here and aside from my growing discomfort with colonial history it is a good time to recognize the many things that I’m grateful for. It is also as good a time to find the science in the everyday. Turkey is of course connected to the turkey stupor, which it turns … Continue reading →

It’s more than just single use plastics

It’s great to see the increasing range of options to reduce single use plastic use. While reusable water bottles and cloth shopping bags have been around for many years, there is now a growing range of options from stores where you can bring in your own reusable container (at least you could before Covid) and … Continue reading →

Learning about lymphoma in kids

This is the final week of my fundraiser for kids’ cancers through the Great Cycle Challenge Canada. Lymphoma is the third most common cancer among children although it is rare in very young children and becomes more common as children age (Lymphoma Action, n.d.). Lymphoma is a type of cancer white cells known as lymphocytes. … Continue reading →