Misinformation about water

Do you think the purer the water is better for health, and the clear water is clean, or the boiled water will be absolutely safe? That's not true.

Misconceptions:

Boiled water is clean : So

(Photo: yenra)

Boiling only helps to kill bacteria in the water, not to destroy some compounds of heavy metals such as lead, mercury or acid bases such as nitrite (NO ₂ ). Conversely, if there are these substances in the water, boiling water will evaporate the concentration of toxins in the water, the greater the risk of poisoning.

Clear water is clean water : This concept is even worse. In or cloudy is just a sense. Water is clear, but there are many impurities such as bacteria, compounds of heavy metals or dissolved organic compounds that we cannot see, and they are still harmful to health.

Tap water is clean water : This is only valid in comparison with ponds, lakes, rivers and streams. To disinfect tap water, people have to use chemicals and they can work with some organic substances to be harmful to the body. The process of transporting water from factories to households may result in leakage and contamination.

The purer the water is: The purified water is by no means a contaminant that causes disease but does not carry the necessary trace minerals for humans. Therefore, it is not possible to call it a good water source because of the lack of trace minerals.

Water source is not endless

Water occupies three quarters of the earth's surface, so we often say 'as much as water'. But for domestic use, only about 1% is clean water, while 27% is salty water and about 2% is frozen water.

All the water on the earth is 'around' in a cycle, there is no more 'new' water. We are still using and reusing the same water we have used millions of years ago.

Water can contaminate pathogenic bacteria, algae, mold, suspended particles, suspensions. It may also contain heavy metals, toxic elements that exist in the form of dissolved ions such as lead, iron, arsenic, mercury and chemicals in pesticides.

Chlorine-contaminated water has a characteristic odor of antiseptic in swimming pools.

Iron-contaminated water has an unpleasant fishy smell, which will turn yellow in the air due to precipitation of Fe ₃ O ₄ . But there are also some sources of iron water that do not transfer gold due to iron combined with organic compounds, creating durable compounds that do not precipitate.

If manganese is present, the water surface has black scum, clinging to water containers. This black scum is Mn ²⁺ ion oxidized to form Mn ₂ O ₃ .

Water contaminated with calcium and magnesium will cause sediment in the bottom of the kettle and pitcher.