If the smell of your tap water gives you flashbacks to summers spent by the pool, it’s likely that there’s high levels of chlorine in your drinking water. Chlorine has effective disinfectant properties that help maintain hygienic conditions within public water supply networks. At low levels chroline is perfectly safe, and rarely causes any health problems.
Many are aware that chlorine is used for water treatment; it’s simply the most cost effective method for treating the many bacteria that could be lurking within public pools and drinking water supplies. In fact chlorine is a disinfectant used by water industries across the world due to its ability to disinfect water of many water-borne diseases and illnesses. As long as chlorine is used at low levels (0.5 mg/l or less) it is perfectly safe. The World Health Organisation has stated that the health risks associated from chlorination by-products are extremely small in comparison with the risks associated with inadequate disinfection.
In most instances the levels of chlorine found in UK water supplies is at levels that cause no issues to health. However it's still important to understand that there are dangers associated with long-term consumption of high levels of chlorine, with links to serious health issues. Studies have shown that those who drink water that has a high chlorine content (around 25mg per litre) have been found can experience side affects such as tiredness, dizziness or headaches. Prolonged consumption at this level has also been related to an increased risk of heart attack.
If you are concerned about the water quality in your area and believe the levels of chlorine may be too high, then you should contact your local water supplier or get in touch with a local plumber.