What is a radon gas testing home kit?

Minnesota home be tested for radon. What is radon? Radon is a colorless, odorless radioactive gas that seeps up from the earth.

When inhaled, it gives off radioactive particles that can damage the cells that line the lung. Long term exposure to radon can lead to lung cancer. In fact, over 21,000 lung cancer deaths in the US each year are from radon, making it a serious health concern for all Minnesotans.

Where does radon come from? Radon is produced from the natural decay of uranium that is found in nearly all soils. Uranium breaks down to radium.

As radium disintegrates it turns into radioactive gas...radon. As a gas, radon moves up through the soil and into the air you breathe. Where is your greatest exposure to radon?

While radon is present everywhere, and there is no known, safe level, your greatest exposure is where it can concentrate-indoors. And where you spend most time-at home. Your home can have radon whether it be old or new, well-sealed or drafty, and with or without a basement.

How serious a problem is radon in Minnesota? High radon exist in every state in the US. In Minnesota, one in three homes has radon levels that pose a significant health risk, and nearly 80% of counties are rated high radon zones.

Minnesota's geology produces an ongoing supply of radon. Minnesota's climate affects how our homes are built and operate. How does radon enter a home?

Since radon is produced from soil, it is present nearly everywhere. Because soil is porous radon gas is able to move up through the dirt and rocks and into the air we breathe. If allowed to accumulate, radon becomes a health concern.

Two components that affect how much radon will accumulate in a home are pathways and air pressure. These components will differ from home to home. Pathways are routes the gas uses to enter your home and found anywhere there is an opening between the home and the soil.

Air pressure between your home's interior and the exterior soil is what helps to draw radon gas into the home via pathways. Minnesota homes commonly operate under a negative air pressure, especially during the heating season. What this means is that the air pressure inside your home is typically lower then the surrounding air and soil, and this creates a vacuum that pulls soil gases, such as radon, into the home via pathways.

Even if the ground around the house is frozen or soaked by rain, the gravel and disturbed ground underneath the house remains warm and permeable, attracting radon gas from the surrounding soil. Radon levels are often highest at the entry point-typically in the lower part of a building. As radon gas moves upward, diffusion, natural air movements and mechanical equipment (such as forced-air ventilation system) distribute the radon through the home.

Radon gas becomes more diluted in the upper levels of the home because there is more fresh air for it to mix with. Greater dilution and less house vacuum effect occur when the house is more open to the outdoors, as during the non-heating season. This generally results in lower indoor radon levels in the summer compared to the winter.

Understanding how radon moves through the home environment helps to explain why timing and location are important factors to consider when conducting a radon test. - tell your family and friends to test so they are not exposed to a deadly gas in their homes.