Natural heritage of Bashkortostan and prospect of nature protection activity on the example of national natural park - lake Aslykul

The parameters describing quality of natural waters Lake Aslykul following characteristics are analysed include: the dissolved oxygen; ammonium nitrogen, nitrite nitrogen, nitrate nitrogen; the weighed substances; sulfates; the sum of ions; the maintenance of some heavy metals (copper, zinc, mercury, nickel, iron, manganese), mineral oil, phenol.