2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38
The importance of water is known to everyone, one cannot live without it. In the city, we rely on special services to monitor her condition, and what do we drink in the country? Residents of suburban settlements and private houses should be sure of the quality of the source. Let's talk about the methods of self-testing and the rules for collecting water for delivery to the laboratory
To drink or not to drink?
Living in a suburban setting, everyone uses the water that is available. Owners of private houses make their own sources in the form of wells and wells. Poor-quality water can be everywhere, and the harm from consumption will be noticed only after a few years. It is important to make sure that there are no dangerous impurities and take care of your health.
Having made the first analysis while drilling a well, one should not relax. The composition of underground sources is rapidly changing. Chemical elements are added or disappeared, changes in the bacteriological list take place. Such a transformation can be established by analyzing samples taken from the source. Consider the types of pollution that are of particular danger.
Water analysis
Taking water from a well, each visually determines its quality - this technique has a scientific name - organoleptic research. For this, a thin-walled glass container is taken, filled with water and the contents are viewed in the sun. Transparency, lack of color shade, odor and inclusions of particles are good indicators. After that, you should boil and inspect the surface after cooling. The presence of a colored film indicates impurities in the aquifer of oil products. Turbid shroud, sediment - excess of salts. If there is no unpleasant aftertaste, then consider that the first stage of the check was successful.
Seemingly clean water may well have deviations from sanitary standards, only laboratory examinations will provide complete information on the chemical composition and the presence of bacteria and viruses. Even artesian wells do not guarantee the safety of the source. Depths of tens of meters can also have chemical and biological pollution, moreover, they often contain an abundance of manganese and iron.
The exact composition and confirmation of safety will be given by SES testing. Therefore, it is recommended to do the analysis there (full chemical, abbreviated, establishment of constituents). An abbreviated analysis will help to assess the drinking quality. The research you want can be different.
• General with detailing of hardness, indicators of concentration of magnesium, calcium, iron, manganese, sulfides, etc. pH level, absence of oil products.
• Chemical - the study of the amount of silver, free chlorine, chloroform, etc.
• Radiological detects radionuclides, radon, alpha / beta particle activity.
• Toxicological is aimed at confirming the absence of lead, pesticides, phenols, aluminum.
• Biotesting will show biocenosis, activity of microorganisms, reproduction rate, conditions of their survival.
It is useful to know that heavy metals, even in miniscule amounts, are harmful. Lead has a negative effect on the nervous and circulatory systems, copper - provokes diseases of the gastrointestinal tract, chromium, cadmium - kidneys, mercury destroys the hematopoietic, nervous system, zinc destabilizes the function of the locomotor system, the state of the muscular system.
How to properly prepare water for research
The sample for analysis must be collected according to the rules, otherwise the conclusion may be inaccurate and have significant errors. For a laboratory, certain conditions must be met.
one. The capacity of the container is selected 1, 5-2 liters. You can use plastic, glass.
2. The container is thoroughly washed, without the use of detergents / cleaning agents.
3. The source should not have stagnant water, therefore, preliminary pumping takes 10-15 minutes.
4. To exclude saturation of the sample with atmospheric oxygen, pouring into the bottle passes along the walls without pressure, in a thin stream.
5. To avoid distortions of the final readings in the container, the presence of free space is excluded - filling under the neck.
6. The accuracy of the result is influenced by the interval between water intake and examination. It is ideal to deliver the sample within 3 hours. When stored in the refrigerator, the shelf life can be increased up to 12 hours.
7. Microbiological examination involves sampling only in a purchased sterile container.
Home examination
For self-testing of water, you can purchase a special kit. This is an effective rapid test, albeit with a limited list of indications. You will do the analysis procedure quickly, it is simple and accessible to each of us. The set contains all the accessories: reagents, test rulers, measuring flasks, droppers, indicators, dosage solutions, a description of the method.
From a well, a water supply system, a well, you can independently check the water for hardness, the presence of nitrates, fluorides, ammonium, manganese, find out the total iron and the pH level. A set for determining the stiffness costs about 300 rubles. Through the Internet, you can order delivery throughout Russia.
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