カゴシマケン カセン ノ スイシツ チョウサ (ダイ2ホウ) : シンカワ (タガミガワ) ノ スイシツ ソノ2

The author performed the investigation of water qualities on the Tagami river successively last year. In manicipal ordinance, the Tagami river is located at C-class river, and the water qualities up to the standard at the upper stream. But at the lower, it is very smudged and below the E-class. This is because, at the region of the lower stream, in spite of the increase of the population, there is no drainage arrangements, so that the drainage of life flow into the Tagami river directry. Here especially noticing is the fact, the concentration of ABS came to two times compared that of last year