By Zulfiya Bainekeeva
Laboratory analyses that were ordered by our newspaper showed that the river water doesn't contain any impurities.
When the water in the
According to the director of laboratory Galiya Umbetalieva who never witnessed such phenomenon in the Ural River, one of her laboratory assistants from
The conducted researches, at least, indirectly confirmed this version: there are no foreign substances of technogenic origin and pollution in the river water.
- Water is odorless, but the foam on the surface has unnatural turquoise color, - said Umbetalieva.
Laboratory assistants made an experiment and filled with this water a gar and closed it with the right lid to eliminate access of air. As they assumed, in warm environment and without oxygen alga in the jar started to decay and water started to rotten. Already on the next day the blue-green film was formed and settled on the bottom of the jar, typical to decaying ooze.
Later we received the results of analyses:
pH - at maximum-permissible concentration 6-9 – the results varied 8,54 to 8,63.
Oil products: at maximum concentration limit of 0,1 mg/dm3 - the results were 0,010-0,017.
APAV (surface-active substances): at maximum concentration limit of 0,5 mg/dm3 - revealed 0,275.
Chlorides: at maximum concentration limit of 350,0 mg/dm3 - results varied from 136,85 to 142,52.
CAO (chemical absorption of oxygen): at maximum concentration limit of 30,0 mg/dm3 – less than 5,0.
Nitrates: at maximum concentration limit of 45,0 mg/dm3 - revealed 0,19-0,43.
Nitrites: at maximum concentration limit of 3,3 mg/dm3 - revealed less than 0,01-0,146.
Ammonium ion: at maximum concentration limit of 2,0 mg/dm3 - revealed 0,10-0,48.
- In other words the water is normal?
- Frankly speaking, looking at this water we didn't expect to receive such results, but analyses showed that it is not polluted. Media is neutral, all other indicators that we managed to conduct researches, correspond to long-term monitoring parameters. Absolutely no changes in water composition.
- Why the
- The river really “blossoms" - the level of water dropped and the strong heat reaches the bottom of the river.
- Is this a temporary phenomenon?
- You know, I am afraid of one thing - if water in the river will continue to decrease, then it can turn into a tendency. In fact, the