The chemical make-up of two southern Alberta rivers may be responsible for a dramatic shift in the gender balance of fish and it's also raising big concerns for people.
In a study released today by researchers at the University of Calgary sections of the Red Deer and Oldman rivers downstream of waste-water plants showed the presence of chemicals like Bisphenol A and the percentage of females in some fish populations as high as 85%.
How much is human activity contributing? Should communities in the area be concerned? And what are the implications for the rest of Alberta’s rivers and streams?
Joining us for this discussion is Hamid Habibi, director of the newly established Insitute of Environmental Toxicology at the University of Calgary.