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Water is something that is needed by the human body. No wonder if every country trying to meet the water needs of their resident. They also always do supervision and research on the water they will supply. It's all done so that their resident can get water quality and feasible for consumption.

Singapore is one of the countries that who concerned with it. Singaporean researchers have their own way of monitoring their water quality. This method is unique because they use swan to perform the task. The swan is not an animal in general but a tool created by Singaporean researchers.

SWAN (Smart Water Assessment Network) is an artificial swan that is used to monitor water quality in the Singapore reservoir. The technology was developed jointly by the National University of Singapore (NUS), the Tropical Marine Science Institute, and PUB. They designed the tool to resemble swan animals to more easily blend in with the surrounding environment.

SWAN is controlled by a remote control. This tool will move around the area to be sampled water. The vane contained in the lower body of the SWAN makes it able to move freely. SWAN can also be controlled using cloud by using an internet connection. The water samples will directly send to the national water agency PUB.

SWAN collected data such as different physical and biological compounds in fresh water, including pH, dissolved oxygen, turbidity, and chlorophyll. The data are then used to determine the quality of the water. From these data can also provide an overview for researchers on water issues that exist in the area.

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The presence of SWAN technology is very helpful to the existing officers. In addition to simplifying, SWAN can also improve the performance of the officers in the field.

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