Yellow sand is a natural phenomenon that causes lots of serious problems and damages over the places it covers. Specifically talking about Korea, the yellow sand that comes from china is very polluted. The storm contains harmful chemicals such as ulfur (an acid rain component), soot, ash, carbon monoxide, and other toxic pollutants including heavy metals. But actually this is not like the yellow windy storms that we have in Saudi Arabia. The one that comes over Saudi Arabia usually comes from Iraq or Kuwait. These two countries have wide big deserts similar to the ones in Saudi Arabia. Most of these deserts have pure sand. Many of Saudi people love to go camping in these deserts despite to this yellow sand wind. It could be only harmful if you suffer from serious cough or for those already with asthma or respiratory infections.
Most of the natural disasters have no practical solutions. Thunder strikes, volcanoes, earthquakes or storm are all over humans’ ability to have a control on or to stop. We have created some techniques to help us to coexist with these natural phenomena. In some countries you may find building that observe and reduce the earthquake vibrations. The project of planting a desert so that we get rid of yellow sand sounds like a good idea to me. We have a similar project in Saudi Arabia where billions of palms were planted in order to be some kind of an obstacle are a wall that block the sand, it worked efficiently. The idea was to block the movement of the sand. It was not for the desiccation of the desert like what china trying to work on.
One of the graduating projects we are working on this semester is a yellow sand alarm system. The idea of the project is worn people when the wind is about it come by installing a device in Namsan tower that has a sensor sense the yellow sand. Once the yellow sand is caught by the device, a yellow lamp will be blinking as an indicator or a warning.
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