Excerpt of Interest:
An analysis looking for more than a dozen common antibiotics in 711 rivers in one-third of the world's countries found<https://www.york.ac.uk/news-and-events/news/2019/research/antibiotics-found…> that concentrations in some rivers were more than 300 times higher than "safe" levels in what researchers say could lead to more resilient strains of antibiotic resistant bacteria around the world.
"Until now, the majority of environmental monitoring work for antibiotics has been done in Europe, N. America and China. Often on only a handful of antibiotics. We know very little about the scale of [the] problem globally," said<https://www.york.ac.uk/news-and-events/news/2019/research/antibiotics-found…> researcher author John Wilkinson. "Our study helps to fill this key knowledge gap with data being generated for countries that had never been monitored before."
Nearly 100 testing kits were flown to rivers around the world to water systems such as Thailand's murky Mekong River, the serene Sein River in Paris and London's central Thames. At each location, local scientists collected and froze samples to ship back to the University of York to compare against monitoring data with "safe" levels established by AMR Industry Alliance. These typically range between 20,000 and 32,000 nanograms per liter (ng/l).
"The results are quite eye-opening and worrying, demonstrating the widespread contamination of river systems around the world with antibiotic compounds," said researcher Alistair Boxall.
Concentrations represent a global concern. Safe levels were most frequently exceeded in Asia and Africa while Europe and North and South America also had levels of concern. By far the worst were levels tested in Kenya, Ghana, Pakistan, Nigeria and Bangladesh — and the discrepancy between wealthy and poverty-stricken nations is evident.