According to "Hygienic Standard for Drinking Water", the drinking standard of drinking water stipulates that drinking water should be based on material indexes such as chromaticity, turbidity, odor, pH value, oxygen consumption and iron content. These indicators cannot be judged only by the appearance and taste of water. Therefore, whether mountain spring water can be drunk depends on the sensory characteristics, microbiology and radioactivity of water quality. At present, only commercially exploited mountain springs are tested, and the drinking safety of other mountain springs is not guaranteed at all.
In addition, there are legends in many places that mountain springs can cure all diseases, but in fact, mountain springs are rich in minerals and carbon dioxide, which may have the effect of relieving some disease symptoms. But the soil at the bottom of the water contains a lot of harmful substances such as bacteria, fungi and parasites. It can be said that the harmful substances in mountain spring water basically exceed the standard.
Some people think that heating mountain spring water can kill bacteria. In fact, boiling water will only kill some bacteria and parasites, but some heavy metals and microorganisms will still remain. Therefore, there are still some security risks that can't be ignored in the boiled mountain spring water. At the same time, washing your face with mountain spring water also has certain risks, because the mountain spring water may contain leech larvae, which may cause leeches to enter your body when washing your face, which is harmful to your health.
Sometimes pure natural spring water may be rich in many harmful substances that we can't see, so try to choose commercially exploited spring water, which will ensure better quality and hygiene.