<；P>；PROBLEM TO BE SOLVED: To provide an oxygen dissolved water supply apparatus capable of spreading oxygen dissolved water over a wide range and achieving a reduction of an execution cost in an apparatus for efficiently supplying oxygen to environmental water of harbor, lakes and marshes, rivers, etc. <；P>；SOLUTION: The oxygen dissolved water supply apparatus 1 is constituted so as not only to inject water pumped up from an arbitrary water area in a gas dissolving device 11 but also to supply an oxygen gas into it to discharge oxygen dissolved water to an arbitrary water area from a discharge port 4 and composed of a first intake means for pumping up water from the arbitrary water area, a second intake means for pumping up water from a deep water area different from the arbitrary water area in the first intake means, a discharge means for discharging oxygen dissolved water to an arbitrary quality improving target water area and an oxygen control means for mixing the water pumped up through the first intake means with the water pumped up through the second intake means to control the density of the oxygen dissolved water, which is discharged through the discharge means, to a desired value. By this oxygen dissolved water supply apparatus 1, the oxygen dissolved water can be supplied to the whole range of the arbitrary quality improving target water area. <；P>；COPYRIGHT: (C)2009,JPO&INPIT
