It is a chemical element with the symbol Rn. His name was originally Radon Niton, a name derived from the Latin nitens, which means marvelous.
It is an inert chemical, non-flammable, and highly toxic. It is the second leading cause of lung cancer after smoking, due to the decomposition of uranium and decomposition, and because of the short shelf life of these two elements, at exists in the body. future. rock
Medical: In the early twentieth century, it was used in small rooms to be exposed to a type of ra called radiohormone to treat certain types of cancer and many autoimmune diseases, such as arthritis. It causes lung cancer.

Scientifically: Although it is not considered a reliable source in radiography, it is used for earthquake prediction, but because it is cheap and dangerous, it has been replaced by X-rays.
This gas is ubiquitous, odorless and tasteless, and is the result of the decomposition of some of the above chemical elements, so it is ubiquitous in nature. chemistry analysis

It leaks from the ground to buildings and houses through cracks in the foundation, soil basins or pores in the soil, and penetrates into the hollow concrete bricks of the walls. In areas containing many ray-containing rocks (including granite), don gas appears at different concentration levels and increases its concentration in the air, including granite, where atoms gather and propagate throughout the building. Entering the facility, if collected in a closed building, poses a greater health hazard.
It takes less time in places with higher levels of may, such as lower areas of a house, such as in a garage.
Ventilate the house as much as possible by opening all windows and operating the fans, especially in indoor rooms.
Close and cover drain tightly to reduce leakage in the house, or install a water trap to prevent leakage.
Avoid smoking.
Extraction of air from the ground, nearby places and ventilation holes requires specialized engineers.

This is an example post, originally published as part of Blogging University. Enroll in one of our ten programs, and start your blog right.

You’re going to publish a post today. Don’t worry about how your blog looks. Don’t worry if you haven’t given it a name yet, or you’re feeling overwhelmed. Just click the “New Post” button, and tell us why you’re here.

Why do this?

• Because it gives new readers context. What are you about? Why should they read your blog?
• Because it will help you focus you own ideas about your blog and what you’d like to do with it.

The post can be short or long, a personal intro to your life or a bloggy mission statement, a manifesto for the future or a simple outline of your the types of things you hope to publish.

To help you get started, here are a few questions:

• Why are you blogging publicly, rather than keeping a personal journal?
• What topics do you think you’ll write about?
• Who would you love to connect with via your blog?
• If you blog successfully throughout the next year, what would you hope to have accomplished?

You’re not locked into any of this; one of the wonderful things about blogs is how they constantly evolve as we learn, grow, and interact with one another — but it’s good to know where and why you started, and articulating your goals may just give you a few other post ideas.

Can’t think how to get started? Just write the first thing that pops into your head. Anne Lamott, author of a book on writing we love, says that you need to give yourself permission to write a “crappy first draft”. Anne makes a great point — just start writing, and worry about editing it later.

When you’re ready to publish, give your post three to five tags that describe your blog’s focus — writing, photography, fiction, parenting, food, cars, movies, sports, whatever. These tags will help others who care about your topics find you in the Reader. Make sure one of the tags is “zerotohero,” so other new bloggers can find you, too.