Buying coke Brasilia

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Buying coke Brasilia

The concentration of the drug was up to times higher than previously observed in other marine life. A study from the Oswaldo Cruz Foundation found high levels of the drug in the tissue of these wild marine animals. Researchers tested 13 Brazilian sharpnose sharks caught in the waters around Rio de Janeiro which they bought from fishers between September and August This species, listed as vulnerable by IUCN, was selected for testing as its habitat close to the coast means it is exposed to contaminated discharges. Scientists believe Brazilian sharpnose sharks could be a sentinel species for this type of pollution. All of the sharks tested positive for cocaine, with the drug and its main metabolite benzoylecgonine found in the muscle tissue and livers of the animals. The study, published in the journal Science of the Total Environment, is the first to find cocaine in wild sharks. Not many packages of the drug are discarded or dumped in this area according to the researchers. But drainage from the illegal labs where cocaine is manufactured and the urine or faeces of drug users are prominent sources of pollution in the water. Wastewater treatment plants around the world are not very good at removing these substances from the water and this means they end up washing down into the ocean. Regardless of where exactly it came from, cocaine only persists for a short while in the environment meaning for researchers to find it in animals like this, a lot of the drug has to be entering the ocean. Researchers have previously found high levels of cocaine pollution in rivers around Rio de Janeiro. Most significantly, they believe it may have an impact on their eyesight which could cause them issues when hunting. Inefficient hunting may shorten the lifespan of the sharks. All female sharks in the study were pregnant but it is unclear how cocaine exposure could impact their foetuses. Aside from the impact on the animals themselves, the sharpnose shark is a common part of the Brazilian diet. Scientists say more research is needed to assess the impact that cocaine residue could have on the people who eat them. By Rosie Frost. Share this article Comments. Share this article. You might also like Now playing Next. Now playing Next.