Charted Average Levels of Radon Exposure in the Home

bar graph of the average radon levels in the homes of different counties

Average Radon levels in the home by county and safe levels

I recently found an article online that told me about the Underestimated cancer risks related to radon exposure and i got to thinking that while it may be a serious issue within the home there aren’t alot of people who off the top of their head would even know what their radon level is or that it was unsafe to begin with.

Radon, a dangerous, radioactive, and invisible gas that forms from broken up Uranium in soil and often finds itself trapped under homes and in highly populated areas has been linked to lung cancer risks. Sounds Dangerous right? I thought so.

With this chart I wanted to show the general public in the area what the levels of Radon were on average throughout several counties in California. That way the different areas could be compared and contrasted to see which areas were safer and which areas were leaning towards the more dangerous side of the balance. The Radon level in someone’s own county on average isn’t the end all be all, but it should serve as a start to peek interests on the subject, to help people get educated and aware.

In this chart I chose to highlight popular counties in California including the Radon Levels in Santa Barbara, Santa Cruz, San Francisco, and Los Angeles.

I figured that the best way to show this comparison of levels would be a bar graph because it is so easy to see which places have a higher level than the average and which do not.

I chose to do this story pitch because it is something which not everyone may think about or know about and I would like to do a story not only explaining what Radon is to those who don’t know, but also doing a more in depth look at the levels which are seen not only in California but perhaps the U.S.

Although San Francisco itself does not have the highest levels of Radon on average I still think that this is a relevant story to them. run by Airchek Inc. compared the safe and acceptable levels of Radon in the home saying that 21,000 Radon-induced cases of lung cancer occur every year in the U.S. Even if San Francisco has a safe average, that does not immediately make each home safe, I think this is something everyone should be conscious of.

For a follow up story I would like to maybe do another story on it in in approximately a year see if I can obtain a new set of research, compare this year’s data to 2010.


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