Below are a number of useful negative ion reference sources.
- Soyka, Fred,
- "THE ION EFFECT",
- E.P.Dutton & Co., Inc.,New York, l977. Contains many discussions on the effects of negative ions on the human body. An entire book devoted to the effects of ions.
- Zamm, Alfred V.,
- "WHY YOUR HOUSE MAY ENDANGER YOUR HEALTH",
- Simon and Shuster, l980, Chapter 4 . This book discusses various research on the effects of negative ions on the human body.
- Michael J. Norden, M.D. ,
- "BEYOND PROZAC".
- Regan Books, Harper Collins Publisher, l995, Chapter 8. Known information about the effects of positive and negative ions on the human body and mood.
- A list and brief summary of some studies about the effects of negative ions on mood and behavior.
- http://www.djclarke.co.uk/file06.html#scientific+studies
- IONS IN NATURE
- A brief discussion of ion effects in our natural environment. http://www.djclarke.co.uk/file03.html#Ions+in+nature
- Karnstedt, J. and Strachan, D.,
- NEGATIVE IONS, VITAMINS OF THE AIR?,
http://www.portalmarket.com/negion.html