Expert Report by Former U.S. Government Official Concludes High Probability Radio Frequency Radiation Causes Brain Tumors

March 17, 2021

Christopher J. Portier, Ph.D., former director of the National Center for Environmental Health at the Centers for Disease Control and Prevention (CDC) and the Agency for Toxic Substances and Disease Registry (ATSDR), and a scientific advisor for the World Health Organization (WHO), recently completed an expert report on brain tumor risk from exposure to radio frequency (RF) radiation used in cellphone technology. After completing a comprehensive review of the scientific literature, Dr. Portier concluded:
 
“In my opinion, RF exposure probably causes gliomas and neuromas and, given the human, animal and experimental evidence, I assert that, to a reasonable degree of scientific certainty, the probability that RF exposure causes gliomas and neuromas is high.”
 
In 2011, Dr. Portier was selected to represent the CDC on an expert working group convened by the WHO International Agency for Research on Cancer (IARC) to review the carcinogenicity of RF radiation. Based upon recommendations of the expert panel, the IARC declared RF radiation “possibly carcinogenic to humans” (Group 2B) and the following year issued a monograph summarizing the evidence. Because the preponderance of the peer-reviewed research published since 2011 supports the need to upgrade this classification, the IARC has prioritized a new review to be conducted by 2024.
 
Dr. Portier’s 176-page expert report including 443 references was prepared for the plaintiffs in a major product liability lawsuitMurray et al. v Motorola, Inc. et al., filed in the Superior Court for the District of Columbia against the telecommunications industry. The report appears as Exhibit 3 in a recent filing with the Court.
 
Christopher J. Portier. Expert Report. Exhibit C. Murray et al. v. Motorola, Inc. et al. Superior Court for the District of Columbia. March 1, 2021. pp. 1-176. .
The report can be downloaded from: 

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