Mayor Sadiq Khan has unveiled a ten-year plan to restore London's rivers and canals, which have suffered from decades of sewage discharges. With an investment of £1.8 billion from water companies, municipalities, and donations, the project aims to reduce pollution, improve river health, and create safe spaces for public bathing, bringing nature back to the city and combating environmental inequality.
Technology and data to track pollution in real time 🌊
The plan includes installing IoT sensors at critical points in the sewage network to monitor nitrate, phosphate, and fecal bacteria levels in real time. This data will be integrated into an early warning system that will allow water companies to activate retention gates and divert flows during storms. Treatment plants are expected to be modernized with ultrafiltration membranes and ozone systems, reducing combined sewer overflows by 70% by 2030.
Swimming in the Thames without looking like a chemical experiment 🏊
The promise of creating clean bathing areas sounds as utopian as asking a Londoner not to complain about the weather. But if the plan works, in a few years you'll be able to take a dip in the river without emerging with three gills or a phosphorescent glow. That said, we recommend not opening your mouth underwater: just in case, the Thames oysters haven't signed up for the detox plan yet.