South Korea is suffering from rising fine dust concentration every winter.<br />To stop the air quality getting even worse,...various measures involving new technologies are being rolled out.<br />Cho Sung-min tells us more. <br />One of the most basic ways of cleaning up the air is to cut down on pollution from construction sites.<br />To make sure builders are doing that, South Korea has introduced some new surveillance technologies.<br /><br />For example, the city of Seoul has a drone equipped with a camera that can capture a crystal clear view of a construction site from a hundred meters up in the air.<br />It allows the city to easily see whether workers are taking the proper steps to reduce pollution or not.<br /><br />"There are more than two-hundred construction sites just in Seocho-gu district,... and about fifty of them are huge. With the drones in the air, we're planning to reduce pollution from construction as much as possible."<br /><br />Other construction sites have new sensors that can measure the level of fine dust.<br />If it reaches a certain concentration,... then the sensor alerts the authorities who can then do things to get the dust under control.<br /><br />In addition to pollution from builders, experts say another major cause of urban pollution is cars when they idle.<br />That's why these thermal imaging cameras were developed. <br />The authorities can use the cameras as they move from city to city... to find vehicles that are idling too long.<br /> <br />South Korea has a growing problem with ultra fine dust pollution, but the country is trying to solve the problem using high-tech gadgets,... and this is just the beginning.<br />Cho Sung-min, Arirang News. <br />
