Monday, May 6, 2013

Open Letter to San Francisco Mayor and Board of Supervisors

April 30, 2013

Dear Mayor and Members of the Board,

Since December, 2010, I have served as a consultant to the San Francisco City Attorney's Office regarding the health research related to cell phone radiation. I have done this work pro bono in support of San Francisco's "cell phone right to know" ordinance because the public needs to know.

Although the U.S. has been in denial about the health effects of cell phone radiation, fifteen nations and the European Union have issued precautionary health warnings about mobile phone use, especially among children. Two states, Maine and Pennsylvania, will soon try to adopt a Children's Wireless Protection Act.

In my opinion, the public needs ample warnings and other protections from what is likely to be a major public health problem resulting in substantial costs to our health care system, lost productivity, needless suffering, and preventable deaths.

Three years ago, I published an op-ed piece in the San Francisco Chronicle which called for precautionary health warnings about cell phone use (1). This article was based upon a review of the research about mobile phone use and tumor risk that my colleagues and I published in the Journal of Clinical Oncology (2).

Today, the evidence is considerably stronger. The evidence is also stronger than two years ago when 30 experts convened by the World Health Organization's International Agency for Research on Cancer categorized mobile phone radiation "possibly carcinogenic" in humans (Group 2B). (BTW, almost all substances listed in Group 2B are covered by Proposition 65 health warnings in California.) In fact, many experts now believe we have sufficient evidence to upgrade the classification of mobile phone radiation to "probably carcinogenic" (Group 2A). Also, we now have evidence that cell phone radiation damages human sperm and is associated with male infertility. Moreover, prenatal exposure is associated with increased risk of neurological disorders in children, especially attention deficit hyperactivity disorder (ADHD).

For more information about the health risks of cell phone radiation, see my news releases and social media web sites (links below). Two of my news releases document that San Francisco's cell phone radiation fact sheet that was approved by District Court Judge Alsup is indeed factual and non-controversial (3, 4).

Please feel free to contact me if I can be of assistance.


Joel M. Moskowitz, Ph.D.

School of Public Health
University of California, Berkeley


(1) Moskowitz JM. Government must inform us of cell phone risk (Open Forum), San Francisco Chronicle, April 28, 2010. URL:

(2) Myung SK, Ju W, McDonnell DD, Lee YJ, Kazinets G, Cheng CT, Moskowitz JM. Mobile phone use and risk of tumors: a meta-analysis. Journal of Clinical Oncology. 2009 Nov 20; 27(33):5565-5572. Epub 2009 Oct 13. URL:

(3) Moskowitz JM. San Francisco’s Cell Phone Fact Sheet is Factual. Sep 12, 2012. URL:

(4) Moskowitz JM. The San Francisco Cell Phone Fact Sheet Suppressed by the CTIA. Apr 17, 2013. URL: