Pictures are taken by David Mcnabey as a part of his Master’s thesis project. The project involves sampling water from Hamilton Harbor and Bay of Quinte during the late summer & fall; a time period harmful algae blooms typically occur.

The first image is taken at 40X magnification and the following are taken at 400X.

Three Ceratium sp., a somewhat large freshwater dinoflagellate.
A long filamentous diatom, Melosira sp., and a spirally, toxin-producing Dolichospermum sp.
A close-up of another Dolichospermum sp.
Pediastrum sp. is a colonial green algae that resembles a buckey ball.
A large number of individual Fragiliaria sp. diatoms colonize to form the long colony pictured here.

Barbecues & Dioxins: An Interview with Dennis Bayley
Left to right: Dr. Denina Simmons, Raina Hubley, Dennis Bayley, and Keisha Deoraj

In December 2023, we sat down with Dennis Bayley, a retired polymer chemist and life member of the Association of Profession of Chemistry in Ontario, to talk about dioxins. Dioxins are among some of the toxic emissions created by barbecues. Dennis’ concern about dioxins started in 1976 following a tragic explosion at a chemical plant in Seveso, Italy. Since then, Dennis has been educating himself and others about the chemistry and toxic affects of dioxins and other barbecue emissions, and their association with neurodegenerative and other diseases. Click the button above to listen to the full interview!