The first-ever international study of its kind has discovered that the concentrations of antibiotics detected in some of the worldwide rivers surpass “safe” levels by almost 300 times. The scientists from the University of York looked for 14 normally utilized antibiotics in rivers in 72 nations in 6 continents and identified antibiotics at 65% of the locations investigated. Metronidazole—antibiotic which is utilized to cure bacterial infections counting mouth and skin infections—exceeded safe and sound levels by the largest margin, with concentrations at one location in Bangladesh up to 300 times higher than the “safe” level. In the River Thames of London, the scientists detected the greatest total antibiotic concentration of almost 233 ng/l (nanograms per liter), while in Bangladesh the concentration was nearly 170 times higher.

The most common antibiotic was trimethoprim that was detected at 307 of 711 locations tested and is mainly utilized to cure urinary tract infections. The research group correlated the statistics with “safe” levels in recent time formed by the AMR Industry Alliance, which based on the antibiotic ranged from 20–32,000 ng/l. Ciprofloxacin—which is used to cure a number of bacterial infections—was the compound that frequently surpassed safe levels in 51 places. The team stated that the safe limits were most regularly exceeded in Africa and Asia, but locations in North America, Europe, and South America also had levels of apprehension showing that antibiotic contamination was a “worldwide problem.”

On a similar note, recently, scientists mapped out how to guard third of the global oceans by 2030. The researchers at the University of York have marked out how to look after more than a third of the world’s oceans by 2030, in context to safeguard wildlife and alleviate the effects of climate change. The study explores what it will mean to fully guard 30% and 50% of the global oceans. These goals have been widely talked as a part of conciliations at the U.N. for a Global Ocean Treaty to look after oceans outside of countrywide boundaries, covering almost 230 million square kilometers.