“Dangers of Chlorine? - Ask Dr. Weil.” DrWeil.com, 4 Dec. 2016, www.drweil.com/health-wellness/balanced-living/healthy-living/dangers-of-chlorine/.

www.drweil.com/health-wellness/balanced-living/healthy-living/dangers-of-chlorine/

“Chemistry.” Properties Halogen Elements And List, byjus.com/chemistry/occurrence-of-halogen-group/.

Gutmann, Viktor, et al. “Halogen Element.” Encyclopædia Britannica, Encyclopædia Britannica, Inc., 3 Nov. 2017, www.britannica.com/science/halogen-element.

“Chlorine Facts.” Math, www.softschools.com/facts/periodic_table/chlorine_facts/194/.

Clairemaust. “Claire's Chlorine Quest.” Claires Chlorine Quest, 13 Oct. 2018, claireschlorinequest.wordpress.com/tag/pros-and-cons-of-chlorine/.

The purpose is try to tell us how it solve the water problem

Chlorination is used extensively by municipal water treatment plants to disinfect water. However, the gaseous chlorine used by these plants is much too dangerous for home use. Household bleach (a 5.25% solution of sodium hypochlorite which is equivalent to 5% available chlorine) can be used for disinfecting drinking water. It is related to environment

Chlorination is used extensively by municipal water treatment plants to disinfect water.

Chlorination kills many pathogenic bacteria (including those which cause typhoid, cholera and dysentery)

It is ironic that chlorination, the very process by which we cleanse our water of infectious organisms, can create cancer causing substances from otherwise innocent chemicals in water.