Night lighting light pollution may exacerbate air pollution
Time：2015/1/14  Viewnum：4143

Looking at the night sky in the city, even if the sky is clear, the stars have been able to see less and less, which is mainly due to light pollution in the bright lights of the city at night to bring caused. However, scientists have recently discovered that light pollution will not only bring trouble astronomers may even cause global air pollution is becoming increasingly serious.

     According to a study National Oceanic and Atmospheric Administration shows that one called nitrate (usually nitrate anions) of chemicals subject to the restrictions and obstacles road lighting, the substance that breaks down emissions from cars and factories harmful gases.

     Scientists study tested the US National Oceanic and Atmospheric Administration's Harald Stark in Los Angeles showed that the light would nitrate from buildings, street lights and car lights roots produce inhibition. "Our preliminary findings show the city lights at night can make cleaning the speed slows down 7%, and the next day's starting to cause ozone pollution chemicals increased by 5%." Stark said, "We need the next step their impact more accurate quantification, i.e., the next day the number of our cities actually ozone generation. it is important to carry out this work, because many cities are close to the limits of the ozone control level, so even a very small like this the reaction may also have a significant impact. "

     Although much dim light than the sun, but still will have a negative impact is difficult to ignore. To this end, Stark proposed a possible solution that will light red color to little effect, but doing so may not be practical. Stark there is another more simple remedy to the downward direction of the light exposure. Because fewer lights up, the impact on the root of atmospheric nitrate smaller.