Researchers report Antibiotics in World Rivers Exceed Safe Limits up to 300 times.

 

Holistic-Health-Show-with-Dr-Carl-O-Helvie

In a study presented at the annual meeting of the Society of Environmental Toxicology and Chemistry (SETAC) in Helsinki on May 27 and 28 researchers reported on levels of antibiotics in the worlds rivers which was a first for this type of study. They compared the assessed levels in rivers with established safe levels  by the AMR Industry Alliance , which depending upon the antibiotic may range from 20 to 32,000ng/l.

Researchers reported that concentrations of antibiotics found in some of the world’s rivers exceed safe’ levels by up to 300 times. They assessed for 14 commonly used antibiotics in rivers in 72 countries in six continents and found antibiotics at 65% of the sites monitored. The most prevalent antibiotic was trimethoprim, used to treat urinary track infections, which was found at 307 of the 711 sites.   In the River Thames and one of its tributaries in London, the researchers found a total antibiotic concentration of 233 nanograms per litre (ng/l), whereas in Bangladesh the concentration was 170 times higher. Ciproflaxacin, used to treat bacterial infections, most frequently exceeded safe levels, surpassing the safety levels in 51 places. Metronidazole, also used to treat bacterial infections including skin and mouth infections, exceeded safe levels by the biggest margin, with concentrations at one site in Bangladesh 300 times greater than the ‘safe’ level.

The ‘safe’ limits were most frequently exceeded in Asia and Africa, but sites in Europe, North America and South America also had elevated levels showing that antibiotic contamination is a “global problem.” Sites where antibiotics exceeded ‘safe’ levels by the greatest degree were in Bangladesh, Kenya, Ghana, Pakistan and Nigeria.  A site in Austria was ranked the highest of the European sites monitored. Researchers found that high-risk sites were often near wastewater treatment systems, waste or sewage dumps and in some areas of political turmoil

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