Going with the flow

Artificial structures and modifications such as bridge crossings, culverts and dams present a major challenge to river systems globally.
They can disrupt the natural flow of water, slowing certain parts of the flow upstream and constricting and accelerating flows downstream.…
Dam failure can mean catastrophe; for people, property and far more.
A pollution incident upstream could affect 16 public water supply intakes in the Thames basin. How long will it take?
The Environment Agency (EA) and UK Water Industry Research (UKWIR) have been working together to develop a water-quality model to allocate the proportions of loads and concentrations of priority substances from different sources in the river network (source apportionment).
Time
Scotch whisky production is the third biggest industry in Scotland. It is worth more than £5bn for the UK economy and growing fast. Can available water resources cope with demand?