Are you welcoming spring outside the city? Don't forget about water - the main "ingredient" of a family picnic or hiking trip. Taking it with you is inconvenient, especially if you don't have a car. And it is impossible to recycle plastic in nature, and carrying bottles, even empty ones, is quite tiring. So where does clean water come from when you're on the go?
It's one thing to relax in a country cottage, and another to pakistan phone data find yourself "in the wild." The only natural water that you can drink without treatment is water from artesian springs. But it's not so easy to get to them; you need to drill a well. And water from any body of water will have to be purified - not only from sand, but also from more serious "seasonings."
Why is it necessary to disinfect water in the field?
You probably won't vacation in a radioactive contamination zone or drink from a chemical plant drain. This doesn't eliminate the real threat of poisoning from microbiologically contaminated water from rivers and lakes: they are home to bacteria, lamblia, parasite cysts, and viruses.
Even one sip of "live" water can provoke an acute or chronic disease. Of particular danger are neurotoxins produced by blue-green algae. They depress the human nervous system not only when taken internally, but also when applied to the skin.
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