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What we found out is that about one in five users disposes of the contact lenses by throwing them into the bathroom sink or in the toilet, lead author Rolf Halden, director of the university's Center for Environmental Health Engineering, said Monday at a news conference at a meeting of the American Chemical Society.The study was presented at the meeting but has not been published or peer-reviewed, which are considered a gold standard in medical and scientific research.After being flushed, the lenses float through the wastewater system to sewage treatment plants. Halden said the researchers tested 11 brands of contacts and found that they don't degrade during the treatment process but tear into smaller and smaller pieces.The fragments are heavier than water, so they settle into the treated sewage sludge, which is often spread on land. The lenses can then make their way into rivers, lakes and the ocean through runoff."It sounds like a very small problem, because the lenses themselves are tiny, but they come by the billions," Halden said. The study estimated that about 45 million people wear contact lenses in the US alone."What we find is that there are billions of lenses ending up in US wastewater every year. They contribute a load of at least 20,000 kilograms per year of contact lenses," Halden said. That's between 6 and 10 metric tons of lenses, according to the study.Study co-author Charlie Rolsky said contact lenses are different than short-use plastics like straws, plastic bags or styrofoam because they are so important to people who wear them."It is a very personal high-value plastic that people sort of take for granted and utilize every day of their lives," Rolsky said.Halden said people don't think of the lenses as plastic waste because they feel like fluid, almost like water. They even come in tiny packets of saline solution.But even people who describe themselves as environmentally conscious admitted flushing their lenses, he noted."We have created an almost immortal material. It does not go away. It does not biodegrade," Halden said.This is a good thing when it comes to contact lenses, because, he said, you don't want them to degrade in the user's eye, which could impair vision or become a breeding ground for bacteria.Contact lenses are a small part of the pollution problem, Rolsky said, but he hopes that the findings encourage people to think more about how to get rid of plastic waste."This might have been a different experiment had there been labeling on a lot of these boxes sort of specifying 'maybe dispose of these with solid waste and please avoid having them go down a drain'; maybe it would be a different story," he said.Contact wearers should throw their lenses in the trash or recycle them, the researchers advise. 2779

WASHINGTON (AP) -- California on Monday sued the nation’s biggest e-cigarette maker, alleging that Juul Labs deliberately marketed and sold its flavored nicotine products to teenagers. 184

VISTA, Calif. (KGTV) - While mourning the death of their one-year-old daughter due to a rare disease, a North County couple chose to honor her memory by inspiring acts of kindness among strangers. 196

Trump's golf habit has drawn incredible scrutiny in his first year in office, with watchdog groups raising questions about whether his endorsement of his own properties violates federal law, and reporters standing outside the gates of his courses hoping to confirm that Trump is hitting the links. 297

Trump's warning appeared to be aimed at the European Union, which is attempting to protect European businesses trading in Iran from facing US sanctions.US sanctions are being unilaterally reimposed on Iran in waves following Trump's decision to withdraw from the Iranian nuclear deal earlier this year.Tuesday's round of US sanctions affects, among other things, the purchase or acquisition of US dollars by the Iranian government, the country's auto industry and trade in gold or precious metals.Iranian President Hassan Rouhani described the sanctions as "pyschological warfare" on Monday but said Iran was willing to hold talks with the US to resolve the matter.On Monday, the European Commission and the three European nations who negotiated the Iran deal -- France, Germany and the UK -- said they deeply regretted the reimposition of sanctions.In a joint statement, the European powers said the agreement to curtain Iran's nuclear program was "working and delivering on its goal," and that they were determined to "protect EU companies doing legitimate business with Iran from the impact of US extra-territorial sanctions."Several international companies have already pulled out of Iran amid growing uncertainty over whether they would face US sanctions for doing business in the country. 1294