Introduction
The SAR (Specific Absorption Rate) is the measure of the rate at which energy is absorbed by the human body when exposed to a radio frequency (RF) electromagnetic field. It is a measure of the rate of RF energy absorption by the body and is expressed in watts per kilogram (W/kg). It is used to assess the safety of radio frequency electromagnetic fields emitted by cell phones, as well as other devices that emit radio waves.
What Does SAR Mean for Cell Phones?
The SAR value is an indication of how much energy is being absorbed by the body when using a cell phone. The higher the SAR value, the more energy is being absorbed by the body. Generally speaking, cell phones must comply with the SAR value specified by the FCC (Federal Communications Commission) in the United States. This value is usually 1.6 W/kg for mobile phones.
Cell phones emit radio waves which are a form of electromagnetic radiation. These waves can travel through walls and other objects, and it is important to be aware of the potential health risks associated with long-term exposure. The higher the SAR value, the more radiation is being absorbed by the body.
What Are the Health Risks Associated With High SAR Values?
The World Health Organization has stated that there is no scientific evidence to suggest that exposure to radio waves from cell phones and other wireless devices are harmful. However, some studies have suggested that long-term exposure to high levels of radio waves may increase the risk of certain types of cancer.
It is important to be aware of the potential health risks associated with long-term exposure to high SAR values. It is recommended that users keep their SAR values as low as possible. SAR values are usually listed on the packaging of the cell phone or in the user manual.
How Can SAR Values Be Reduced?
There are several ways to reduce SAR values when using cell phones. These include:
- Using a hands-free device, such as a headset or speakerphone, to keep the cell phone away from the head and body.
- Limiting cell phone use, especially in areas with poor reception, which can increase the amount of energy absorbed by the body.
- Turning the cell phone off when not in use.
It is also important to be aware of the SAR values of other wireless devices, such as Wi-Fi routers and Bluetooth headsets, as they can also affect the amount of energy absorbed by the body.
Conclusion
The SAR value is an indication of how much energy is being absorbed by the body when using a cell phone. Generally speaking, cell phones must comply with the SAR value specified by the FCC in the United States. It is important to be aware of the potential health risks associated with long-term exposure to high SAR values and to take measures to reduce the amount of energy absorbed by the body. By using a hands-free device, limiting cell phone use, and turning the cell phone off when not in use, users can reduce their exposure to electromagnetic radiation.
