Climate change causes increasing frequencies of heatwaves and extreme rainfall across the globe. These events result not only in a severe excess or lack of water at any given location but also cause significant water quality effects. Low river flows as a result of prolonged drought cause wastewater effluent discharges to have a greater effect on river water quality. Flooding of industrial or urban areas leads to a wide range of water pollutants in a short space of time, and significantly increases the risk of clean drinking water being mixed with polluted stormwater or sewage.
When dealing with the aftermath of extreme weather events, water quantity often receives the most attention, but water quality is just as important.
Salinity and oxygen level fluctuations are among the most well-known quality issues related to heatwaves and prolonged periods of drought. Floods often lead to outbreaks of waterborne diseases. Insight into water quality changes using sensors helps to identify and implement the best possible mitigation strategies.