Science Weekly Streams of medicines: how Switzerland cleaned up its act
Apr 10, 2025
Phoebe Weston, a biodiversity reporter at The Guardian, shares insights on Switzerland's impressive water purification efforts. She details how the country transformed its rivers from polluted hazards into pristine swimming spots, driven by a public health crisis in the 1960s. The discussion highlights the ecological impact of pharmaceuticals in waterways and showcases Switzerland’s innovative treatment practices. Phoebe emphasizes what the UK could learn from Switzerland's proactive approach to preserving clean water resources.
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Switzerland's Dirty Past
- In the 1960s, Switzerland had heavily polluted water, with foam-covered lakes and dead fish.
- Swimming was banned in many rivers due to health risks, a stark contrast to today's pristine waters.
The Zermatt Typhoid Outbreak
- A 1963 typhoid outbreak in Zermatt, killing three and sickening hundreds, spurred public outcry.
- This led to the 1971 law mandating wastewater treatment, connecting 98% of the population.
Micropollutant Treatment Expansion
- Switzerland is progressively adding micropollutant treatment facilities to sewage plants.
- By 2040, they aim to have 140 facilities, showcasing a commitment to advanced water purification.