Friday November 22, 2019
Home World Conflicting T...

Conflicting Theories About Cellphone Radiations By Two Federal Agencies

He pointed out one well-known risk from cellphones: Car crashes when drivers are distracted by them.

0
//
Mobile,cellphone
A pedestrian talking on a cellphone is silhouetted in front of a fountain in Philadelphia. VOA

Two U.S. government agencies are giving conflicting interpretations of a safety study on cellphone radiation: One says it causes cancer in rats. The other says there’s no reason for people to worry.

No new research was issued Thursday. Instead, the National Toxicology Program dialed up its concerns about a link to heart and brain cancer from a study of male rats that was made public last winter.

The Food and Drug Administration, which oversees cellphone safety, disagreed with the upgraded warning. And “these findings should not be applied to human cellphone usage,” said Dr. Jeffrey Shuren, FDA’s chief of radiological health.

What’s most important is what happens in humans, not rats, said Dr. Otis Brawley, chief medical officer of the American Cancer Society.

Cellphone
While his agency said the risks to rats don’t directly apply to people, the study raises safety questions. Pixabay

“The incidence of brain tumors in human beings has been flat for the last 40 years,” Brawley said. “That is the absolute most important scientific fact.”

The original study

In a $30 million study, scientists put rats and mice into special chambers and bombarded them with radiofrequency waves, like those emitted by older 2G and 3G phones, for nine hours a day for up to two years, most of their natural lives.

The levels the rodents experienced were far higher than people are typically exposed to.

The findings

Last February, the National Toxicology Program said there was a small increase in an unusual type of heart tumor in male rats, but not in mice or female rats. The agency concluded there was “some evidence” of a link. Also, the February report cited “equivocal evidence” of brain tumors in the male rats.

Thursday, the agency upgraded its description of those findings. The heart tumor increase marked “clear evidence” of cancer in male rats, it announced. There is “some evidence” of brain cancer.

cancer, cellphone
A radiologist examines the brain X-rays of a patient. In a small study, patients with brain tumors were given genetically modified poliovirus, which helped their bodies attack the cancer. VOA

The change came after the agency asked outside experts to analyze the findings.

“We believe that the link between radio frequency radiation and tumors in male rats is real, and the external experts agreed,” said John Bucher, the toxicology agency’s senior scientist.

While his agency said the risks to rats don’t directly apply to people, the study raises safety questions.

The disagreement

The FDA immediately disagreed, firing off a press release assuring Americans that “decades of research and hundreds of studies” has made the health agency confident that the current safety limits for cellphone radiation protect the public health.

Plus, FDA pointed out confusing findings from the rodent study — such as that the radiated rats lived longer than comparison rats that weren’t exposed to the rays. The toxicology agency said it appeared that the radio frequency energy helped older rats’ kidneys.

There’s a reason two different government agencies are clashing — they’re asking different questions, said George Washington University public health professor George Gray.

 

Cellphone
The Food and Drug Administration, which oversees cellphone safety, disagreed with the upgraded warning. And “these findings should not be applied to human cellphone usage Pixabay

 

A former science chief for the Environmental Protection Agency, Gray said the toxicology program examined how cellphone radiation affected animals. By looking at what it means for humans, the FDA “brings in more sources of information and data than just these recent tests in rats and mice,” he said in an email.

So are cellphones safe?

“I’m calling you from my cellphone,” noted the cancer society’s Brawley.

He pointed out one well-known risk from cellphones: Car crashes when drivers are distracted by them.

Also Read: Aggressive Treatment Of Prostate Cancer May Also Lead To Usage Of Anti-Depressants: Study

As for cancer, if people are concerned, they could use earphones or speakers, he said.

Those who study risk aren’t hanging up.

“My family and I won’t change our mobile phone habits based on this news,” said George Washington’s Gray, co-author of the book “Risk: A Practical Guide for Deciding What’s Really Safe and What’s Really Dangerous in the World Around You.” (VOA)

Next Story

Number of Indians Studying in the U.S. Surpassed 2 Lakh

Indians studying in the USA Keeps Growing in Number

0
Set of books for studying and reading.
Academic libraries are generally located on college and university campuses and primarily for studying and for faculty members. Pixabay

The number of Indians studying in the US increased by almost three per cent over the last year to 202, 014, – the sixth consecutive year marking such growth.

According to the 2019 Open Doors Report on International Educational Exchange released on Monday, Indians make up over 18% of all international students in the United States.

India provided the second highest number of graduate students and jumped up to third place in undergraduates, it said.

students studying in lecture
Students during a university lecture. Pixabay

Speaking at the United States India Educational Foundation (USIEF), the Embassy’s Minister Counselor for Consular Affairs Charisse Phillips said, “Student exchanges between our two countries help strengthen the foundation upon which our strategic partnership is built. Indian students are looking for a great education and the United States offers the best return on this investment.”

In 2018-19, US colleges and universities hosted more than one million international students for the fourth consecutive year. The total number of international students expanded for the thirteenth consecutive year.

The top places of origin for international students studying in the United States were China, India, South Korea, Saudi Arabia, Canada, Vietnam, Taiwan, Japan, Brazil and Mexico. The top host states were California, New York, Texas, Massachusetts, Illinois, Pennsylvania, Florida, Ohio, Michigan and Indiana.

Also Read: Union Environment Ministry Rolling out Anti-pollution Measures for Delhi NCR region

Open Doors is published by the Institute of International Education (IIE), which has conducted an annual statistical survey on international students in the United States since its founding in 1919 and in partnership with the US Department of State’s Bureau of Educational and Cultural Affairs since 1972.

EducationUSA is a US Department of State network of over 430 international student advising centres in 178 countries and territories. EducationUSA is the official source on US higher education. In India there are 7 EducationUSA advising centers.

USIEF hosts centres in New Delhi, Mumbai, Hyderabad, Chennai and Kolkata. The centre in Bengaluru is hosted by Yashna Trust and the one Ahmedabad is hosted by IAES. (IANS)