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166184153 story Blue light from artificial sources is on the rise, which may have negative consequences for human health and the wider environment, according to a study. From a report:
Academics at the University of Exeter have identified a shift in the kind of lighting technologies European countries are using at night to brighten streets and buildings. Using images produced by the International Space Station (ISS), they have found that the orange-coloured emissions from older sodium lights are rapidly being replaced by white-coloured emissions produced by LEDs. While LED lighting is more energy-efficient and costs less to run, the researchers say the increased blue light radiation associated with it is causing "substantial biological impacts" across the continent. The study also claims that previous research into the effects of light pollution have underestimated the impacts of blue light radiation. The ability of blue light to suppress melatonin is one of the health consequences of it. A variety of chronic health conditions can be caused by increased exposure to artificial blue light. The study says that the visibility of stars in the night sky may be affected by the increase in blue light radiation in Europe. Blue light can change the behavior of bats and other animals as it can make them move towards or away from light sources.
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