There are multiple causes of male infertility.
For many years women were blamed for a couple’s infertility. But it’s now known that male factor infertility contributes to about 50% of total cases.
Lake surrounding a mining site in Northern Québec.
Human activities can affect plants and have consequences for the human populations that consume them.
One symptom of arsenic poisoning is the growth of plaques on the skin called arsenical keratosis.
Anita Ghosh/REACH via Flickr
Millions of people worldwide are exposed via soil and water to arsenic, whether naturally occurring or related to pollution. Chronic exposure is linked to the formation of cancer stem cells.
We detected 180 contaminants in treated and untreated water. None of those found in treated water breached human health guidelines, but we should not forget about potential impacts on the environment.
Shutterstock / Lightspring
Milk and its derivatives, meat products (especially fat), fish and seafood may be contaminated with PCBs, toxic substances that have been proven to accelerate cellular ageing.
UV absorbents and industrial antioxidants can reach aquatic environments through the degradation of plastics, or via wastewater treatment plant effluents.
(Environment and Climate Change Canada)
UV absorbents and industrial antioxidants are used in many household goods to protect them from UV radiation. They can have an adverse impact on ecosystems.
A study showed that an endangered population of beluga whales in the St. Lawrence River had one of the world’s highest concentrations of the flame retardant, PBDE, in their blubber.
Flame retardants are added to consumer products — and end up in the environment and harming aquatic wildlife.
BPA is an industrial chemical used to make hard, clear plastic known as polycarbonate. It’s also used in the lining of some cans. Many hard plastic bottles no longer contain BPA, and it’s illegal to sell baby bottles with BPA in Canada.
THE CANADIAN PRESS/Jonathan Hayward
There is abundant evidence of the involvement of endocrine disruptors in reproductive dysfunction in several species, including humans.
Trace metal exposure can lead to concerning neurocognitive effects in people of all ages.
Arctic char dries in the sun in Gjoa Haven, Nunavut.
THE CANADIAN PRESS/Jason Franson
The Arctic and sub-Arctic regions are no longer exempt of industrial contamination. Researchers have found high blood levels of potentially harmful chemicals in people living in the North.
A camera catches a huge Greenland shark in eastern Baffin Bay, near Disko Bay, Greenland.
The eastern Arctic and sub-Arctic marine areas of Canada are changing rapidly under climate change.
Animals in the western Arctic have higher levels of mercury in their bodies than those in the eastern Arctic.
A new study demystifies regional differences in mercury levels in marine animals in the Canadian Arctic.