I am a professional environmental scientist interested in the water environment with a broad perspective-spring water, river water, seawater, waste water treatment, restoration of coastal sediment etc. on the basis of my analytical chemistry background. My specialty fields and skills are as follows: (1) Development of adsorbents to remove nutrients and heavy metals from wastewater, (2) Coastal environment restoration using industrial recycled materials, (3) Development of analytical methods to evaluate and monitor aquatic environment.