When compiling the rating, Rospotrebnadzor took into account the volume of harmful emissions from air pollutants
Water in the capitals
According to Rospotrebnadzor, almost 3% of samples fromwater arteries of St. Petersburg do not comply with SanPiN standards. The results of the Barrier fences showed that the data of the regulatory authority are correct - there are a lot of inconsistencies. The color of water is overestimated by 20-400 (degrees on the platinum-cobalt scale - ed.), depending on the location of the analyzed places. Taking into account the maximum limit of 200 adopted by SanPiN, in the districts of St. Petersburg, the color ranged from 220 to 600. Increased color is a sign that water is subjected to secondary contamination with iron, passing through water pipes, the average age of which is 45 years, and the degree of wear is estimated at 55.9%.
Water quality also worsens its conditionthe main source is the Neva River. The water in St. Petersburg is too soft, it wears out the water pipes in the city. On the one hand, this is good, there is no scale left on household appliances. On the other hand, soft water is very corrosive: there are very few salts in it, and it “draws” minerals from the environment. And although at the water treatment plant the water can be very clean, but in the process of traveling through the pipes it absorbs a lot of iron, so the level of its content in the water does not correspond to the norm, exceeding it by 2.5 times.
“Soft water is very corrosive: it has very few salts, and it “pulls” minerals from the environment”
If you drink this water regularly, you may experiencehealth problems: disruption of the liver, gastrointestinal tract, failure in heart rhythms and the thyroid gland, as well as possible loss of strength, allergies, skin diseases.
In Moscow, almost all indicators of water qualitynormal and do not exceed them. The only nuance that you should pay attention to is the presence of salts in tap water. At the same time, the total hardness of water in Moscow does not exceed 4.5 Zh0. But water with a salt content above 3.5 J0 leads to the formation of scale on household appliances and can adversely affect kidney health. The excess content of minerals provokes the deposition of salts in the joints, slowing down digestion, and worsening skin condition. Moscow Vodokanal uses modern technologies for cleaning, but they cannot rid the water of hardness. The composition of the Moscow River is to blame for everything - one of the main fresh water intakes in the city.
In the regions
In February 2021, residents of Rostov-on-Don beganpost videos on social media complaining about the poor appearance and quality of tap water. The unpleasant smell of mud, green, brown and gray shades of water - external signs indicated that their claims were not unfounded. The results of the inspection of the water utility indicated a critical deterioration in water quality due to the condition of the Don River, the main freshwater intake in the region. Studies have shown that the amount of organic matter has been increased. In May 2021, such a study was conducted by specialists from Rospotrebnadzor: 172 water samples from different reservoirs confirmed a deviation of 30% from hygienic standards: 29.6% of the selected waters - according to microbiological indicators, 0.78% - according to parasitological indicators.
The problem of poor water quality exists in severalcities of the Rostov region: in Rostov, Taganrog, Azov, Novocherkassk, Azov and Aksay districts. In the reservoirs of these cities, due to the poor condition of the water, it is even forbidden to swim. Water from the river is used in agriculture for irrigation, so the channel became shallow from 2007 to 2017, which led to constant pollution of the Don.
According to the Institute of Geosciences of SFU, waterneeds a good quality cleaning. At the same time, the level of Don water pollution is not critical. The river was assigned the third class of cleanliness - "polluted". The duties of the water utility are to supply Donetsk residents with clean drinking water, in accordance with SanPiN standards. Public infrastructure negatively affects the composition and quality of drinking water, especially pipes, the condition of which is under the control of municipal utilities. The situation will only get worse every year if the problem of worn-out pipes and water networks is not solved, as well as if cleaning is not carried out and preventive measures are not taken against the constant pollution of the Don river basin.
Vodokanal information confirms declinewater quality in the Don. An increase in the amount of volatile organic substances gives the water an unpleasant fishy, swampy smell, but, according to the statements of the water utility, the substances are harmless. The experts carried out their chemical studies of water in the Rostov region. One of the main problems is too much rigidity. This can lead to gallstones and kidney stones. According to European indicators, water, the level of hardness of which exceeds 4-6 mg-eq / l, is no longer considered suitable for drinking.
"The rise in the amount of volatile organic substances gives the water an unpleasant fishy, swampy smell"
Indicators of chemical analysis of water in Yaroslavlindicate good water quality, its hardness is only 2.3 J0. But the townspeople are forced to drink water saturated with iron. Its excess can cause the development of diabetes, the occurrence of allergic reactions.
In the Leninsky district of Voronezh revealed increased hardness of water, it leads to scale.The indicator is twice the norms of SanPiN. Daily use of hard water adversely affects human health. But at the same time, the citywide indicator of rigidity is low. However, household appliances are still prone to limescale build-up, which builds up when the water is heated, which also leads to higher energy bills.
AT Thule's calcium levels are several times overestimatedin drinking water. In the three analyzed areas, the indicators were 1.5–2 times higher than the norm. Calcium is considered a useful mineral, but its excess can harm the child's body, cause a violation of the absorption of zinc, iron, which is fraught with anemia. Adults are also prone to health problems due to the accumulation of large amounts of calcium - stones in the kidneys and urinary tract, as well as the formation of deposits on the walls of blood vessels.
In Vladimir, almost all indicators of watercomply with quality standards. But one parameter stands out and reaches the lower mark of the norm - the color of the water, and the second already exceeds the norm - the amount of fluorides. Residents of Vladimir not in vain complained about the color and smell of tap water. All indicators indicate the need for additional cleaning. With the constant use of water with a high content of fluorides, citizens may begin to have problems with their teeth - they will quickly collapse, crumble, and problems with the thyroid and parathyroid glands may also arise.
After taking 2,312 water samples in the Samara regionemployees of Rospotrebnadzor found deviations from sanitary standards in 12% of cases, and from microbiological standards in 1.5%. In the process of preparing the "Water Map" of the Samara region, the chemical analysis of the BVT "Barrier" company confirmed that tap water in the region is of the worst quality. It has high color levels, which is a sign of poor-quality water purification and its poor organoleptic properties. This indicator can adversely affect the function of the gastrointestinal tract.
“Water quality also worsens the condition of its main source – rivers”
The main problem of Primorsky Krai is increasedwater color. For example, samples in different areas of Vladivostok revealed a color value from 220 to 320, while the norm is 200. Such water not only looks bad, but is also too soft. This leads to secondary iron contamination and high coloration, as in St. Petersburg. Soft water can cause a lack of useful elements in the body, so it must be enriched with micronutrients such as calcium and magnesium to restore its optimal mineral balance.
In Khabarovsk and Vladivostok, reduced water hardness has led to the fact that in some areas of the city the depreciation of water supply networks has reached 90%.
In Yakutsk, the water does not even meet the basicquality requirements - it is colored, cloudy and with a smell. The indicators are overestimated for all three parameters, which indicates the poor quality of water from the centralized drinking water supply system in terms of sanitary-chemical and microbiological indicators.
Also in the Republic of Sakha, the content ofgland. An excess of iron gives the water an unpleasant metallic taste, colors fruits, vegetables and other products, and changes their properties. In addition, such water does not wash soap off the skin well, which leads to clogged pores and accumulation of sebum. And an excess of iron in the body can lead to hemochromatosis, problems with the stomach, liver, pancreas and cardiovascular system.
Causes of pollution and cleaning methods
In each region, the causes of drinking water pollutionwaters are different: deterioration of utility networks, climatic conditions, industry and pharmaceuticals. The budgets of regional and city water utilities do not allow installing purification systems, but each consumer can take care of his own health. To do this, you first need to understand the shortcomings of drinking water in the region of residence.
To determine them, you can use the "Water Map" - it contains the results of the analyzes. Based on them, you can choose an effective water filter for a particular case.
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