E. coli Levels In Seine River Remain Unsafe Ahead Of Paris Olympics

by | Jun 29, 2024 | Daily News, Environmental News

Home » Environmental News » E. coli Levels In Seine River Remain Unsafe Ahead Of Paris Olympics

Recent testing has shown that the Seine River in Paris, a crucial location for Olympic events, is not in acceptable condition, with the 2024 Summer Olympics just one month away. Samples have shown dangerously high concentrations of germs, particularly E. coli connected to faecal waste, for the third week running. The E. coli levels in the Seine River are too high, making it completely unfit for water-based sports usage.

E. coli Levels In Seine River

The Eau de Paris monitoring group tested the river water between June 17 and June 23, and the results showed that the E. coli levels were ten times higher than what was considered acceptable. This bacterium, which is frequently linked to faecal contamination, can result in pneumonia, sepsis, diarrhoea, and UTIs. The Paris mayor’s office and AFP both claim that the contamination levels have never dropped below the upper bounds.

In April, the Surfrider Foundation Europe, a nonprofit organization, conducted a six-month study of the Seine River and found “alarmingly high” levels of bacteria, twice the limit allowed by World Triathlon standards.

According to European standards, the safe limit for E. coli is 900 colony-forming units per 100 milliliters, a criterion also used by the World Triathlon Federation to determine suitable water quality for competitions.

In the first eight days of June, tests revealed that E. coli levels often surpassed these limits, though enterococci levels mostly remained within the safe range. The tests showed a positive trend, with contamination levels decreasing from high on June 1 to more acceptable levels by June 9, largely due to better weather conditions.

A report from Paris Mayor Anne Hidalgo’s office, which included Eau de Paris’ test results, also detected enterococci, another type of gut bacteria, present in the river for several weeks.

Hidalgo’s office blamed the poor water quality on seasonal factors such as sunlight, water temperature, and river flow, all of which influence bacterial growth.

Water quality remains degraded due to an unfavourable hydrological context: rain, high flow, low sunshine, temperatures below seasonal standards, and pollution from upstream,” the report noted. The issue was exacerbated by an unusually rainy spring, causing the river’s flow to be 4-5 times higher than typical summer levels. The E. coli levels in the Seine River remain dangerously unsafe, hindering Olympics water-based sports.

Also Read: Heat Wave: 52% Increase In Days Reaching 35°C In Major Capitals


  • Sarah Tancredi

    Sarah Tancredi is an experienced journalist and news reporter specializing in environmental and climate crisis issues. With a deep passion for the planet and a commitment to raising awareness about pressing environmental challenges, Sarah has dedicated her career to informing the public and promoting sustainable solutions. She strives to inspire individuals, communities, and policymakers to take action to safeguard our planet for future generations.

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