Can boiling water effectively eliminate chemical contamination?

Boiling water is an effective method for killing pathogens such as bacteria, viruses, and parasites, but it does not effectively remove chemical contaminants. Certain chemicals, like heavy metals and some pesticides, are not eliminated by boiling because they have high boiling points or do not evaporate, remaining in the water even after it has boiled. Moreover, boiling may concentrate some contaminants, as when water evaporates, any dissolved solids left behind become more concentrated.

The assertion that boiling can neutralize all chemicals is incorrect, as not all chemicals can be rendered harmless through heat. Some may remain intact and continue to pose risks. Additionally, while boiling might alter the state of some volatile substances by converting them to gas, it does not remove or neutralize them completely. Therefore, it is crucial to use other methods, such as filtration or chemical treatments, to address chemical contamination effectively.