PFAS contamination is no longer a problem limited to specialist laboratories or industrial sites. These persistent chemicals have been detected in rivers, groundwater, drinking-water sources, soils and even household products.…
PFAS are often called “forever chemicals” because many of them persist in the environment for years or even decades. They have been used since the 1940s in products designed to…
“PFAS-free” sounds straightforward. A product either contains PFAS or it does not—right? In practice, the label can be more complicated. Per- and polyfluoroalkyl substances (PFAS) are a large family of…
“PFAS-free” sounds reassuring. On a bottle of drinking water, a filtration product or a household tap, the phrase appears to promise a simple answer to a complex chemical problem. But…
Why does tap water sometimes look white? Turn on a tap and you may occasionally see water that appears milky, cloudy or almost white. In most cases, this is not…
Brownfield redevelopment can turn neglected industrial land into housing, public space, clean energy infrastructure or new employment sites. But where per- and polyfluoroalkyl substances (PFAS) are present, the project requires…
A biome map of North America is more than a guide to forests, deserts and grasslands. It is also a useful framework for understanding how water moves, where ecosystems are…
Why pH Matters in Water Quality When people assess drinking water, attention often goes straight to visible problems: cloudiness, unusual colour, sediment or an unpleasant smell. Yet one of the…
Per- and polyfluoroalkyl substances (PFAS) are often described as “forever chemicals” because many of them resist heat, water, oil and biological degradation. That persistence creates a difficult problem for water…
Volatile organic compounds, or VOCs, are a broad group of chemicals that can evaporate easily and move from air into water and back again. In drinking water, they usually enter…