It has already been shown how many of the water systems in Europe are polluted with synthetic hormones were obtained from contraceptive pills, to such an extent that they have even been connected with the collapse in some fish populations, resulting in the suggestion that we need a massive clean-up operation. The impacts seen in fish are not currently thought to harm people, but the notion that everything we eat could have traces of pharmaceutical medications is a persistent one.
It is this claim that spurred a new analyse to examine how the reuse of wastewater to irrigate harvests might also be cycling pharmaceutical drugs. The research claims to have found that tracings of the narcotic carbamazepine, usually used to treat epilepsy, can be found in the urine of individuals who have consumed vegetables grown utilizing recycled water taken from households. They suggest that the drug, which enters the water system when a person taking it pee-pee and flushes the toilet, is circulating between render and people, via pee.
The drug is commonly found in wastewater, which is why the study focused on insuring if the intake of veggies grown employing such water increased the concentration found in the participants’ urine. As water security becomes more of an issue and water deficits more frequent the use of waste water to irrigate harvests is also increasing in instance, especially in places such as Israel where an estimated 50 percent of harvests are now watered in such a way. It was for this reason that the latest paper focuses on those from Israel.
Thestudy, published in the publication Environmental Science& Technology, wasnt especially rigorous, though. Use a sample size of only 34 people, they divided different groups into two. The first group was given produce irrigated with wastewater for a week, and then veggies watered with clean water, while the latter group was meant to receive the reverse. But the researchers claim that they ran out of the original batch of create irrigated with wastewater, and admit that they had to use locally sourced veggies, which they suspect were a mix of both wastewater and clean water fed.
At the beginning of the study, they report that the participants all had mixed different levels of carbamazepine, but that after one week of eating wastewater irrigated render, the first group all reported having quantifiable different levels of the drug in their urine. After switching to the other, clean water fed vegetables, the researchers note that the levels of the medication dropped again. With the second group, little could be drawn from it, as the levels of the medication in their urine remained relatively constant.
The study claims that the factthe levels of carbamazepine detected in the first group were upto a quarter of what you would expect to find in people actually taking the drug is proof of concept that the matter is pee-food-pee cycle does exist. But people have not doubted that there are pharmaceuticals in our drinking water and food. What is under question is whether or not these levels are high enough to have an effect, and so far the results remain inconclusive.
Read more: www.iflscience.com