The linked articles are well worth reading. The Blog title is direct quote from Dr Robert Carlson whose work is referenced in these articles. Both articles are written by Dr. Edward Group;The latest published on June 26, 2011, Last Updated on September 14, 2015 . They contain references to several studies. The most concerning observation is that up to two-thirds of household exposure to chlorine is due to inhalation of steam and skin absorption while showering. Warm showers open up the pores of the skin and allows accelerated absorption of chlorine and other chemicals. The steam we inhale while showering can contain up to 50 times the level of chemicals of tap water due to the fact that chlorine and most other contaminants vaporize much faster and at a lower temperature than water.

Chlorine, Cancer and Heart Disease

Toxic Chemical: The Health Dangers of Chlorine