Although the definition of anions has been given in many and various references, such as in item 3 below, their effects, as well as how they are measured, are perhaps not yet generally acknowledged. There is no definite method of measuring the number of anions, nor can they be felt by our bodily senses. I doubt, too, their effects can be consciously experienced. Here is some material that Nippon Kayaku has prepared, to promote visual recognition of the number and effects of anions.

Nippon Kayaku's anion-generating material Kayacera Powder, which is made from a natural ore collected around hot springs and has similar properties to that of the Misasa hot spring, Tottori, was applied with the use of the Kayacryl Resin T-126 binder to the inside wall of Shigaraki ware pots, in which daikon radish sprouts were cultivated (Photo-1).

Photo-1 (Click the image for enlargement)

The effect of Kayacera Powder is apparent in the remarkably faster growth of sprouts in comparison with that of the untreated pot.

Next, a comparison was made between Kayacera and other companies' anion-generating materials by observing the growth of daikon radish sprouts in the cotton gauze beds with 0.2g of each material absorbed (Photo-2).

	Photo-2 (Click the images for enlargements)

As shown in the pictures, Kayacera has stronger effects on the growth of sprouts than tourmaline or diatomite. This confirms the fact, which is examined in the following, that the radiation count is in proportion with the number of anions generated from anion-generating materials.