A team of scientists, led by researchers at Monas University, analyzed insects and spiders found in six streams of this city and found traces of up to 98 percent of different types of pharmaceutical products.
Scientists have discovered 69 different types of insect and 66 spider drugs. Scientists have explained that drugs are transmitted through the food chain. Insects feed on spiders, and they are food for strange bloody stains, writes the Guardian.
Drugs flow into streams through sewage treatment plants that do not remove any harmful substances consumed by humans. Some pass through septic tanks or permeable water and sewer pipes.
Water from the creek and the brook around Melbourne, even those with very little waste, contained "a whole cocktail of drugs," scientists said, not hiding that they were unpleasantly surprised.
This is the first study in the world to indicate that there are a number of pharmaceutical substances in the food chain, and that some animals may be exposed to half the daily dose of antidepressants prescribed by humans, according to study director Erin Richmond.
– The study has shown that a number of traceable drugs remain in the invertebrate waterways but also in the watercourses from where they are cast into the terrestrial areas surrounding them. Baboons, birds, bats are consumed here. – explained Richmond.
The results of a study by researchers at Monash University in Melbourne were published in Nature Communications.