Comparison of Cs, Sr and Pu fallout from meltdown

In summary, the conversation discusses a summary of three maps of Chernobyl fallout, specifically looking at Cs-137, Sr-90, and Pu-239 maps. The map scales are the same, and the lowest contour levels for Cs and Sr are equivalent while Pu is ten times lower. This visually demonstrates that Cs is about ten times more widespread than Sr. The original file is downscaled and attempts to attach a thumbnail do not work. The maps show the same territory multiple times, with the yellow/red map representing Cs, the green/blue blob representing Sr-90, and the orange blob representing Pu-239.
  • #1
nikkkom
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I combined three maps of Chernobyl fallout: Cs-137 map, Sr-90 map and Pu-239 map.
Map scales are the same.
Lowest contour levels for Cs and Sr are the same (1 Ci/km^2), Pu contour is ten times lower (0.1 Ci/km^2).
This visually demonstrates that Cs is about ten times more widespread fallout component than Sr.

Chernobylmap_Cs_Sr_Pu_3_small.png
 
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  • #2
The original file is 12064 by 10320 pixels, forum engine downscaled it. Let me try a "thumbnail attach" option...
Chernobylmap_Cs_Sr_Pu_3_small.png

nope, this still gives a downscaled image.
 
  • #3
nikkkom said:
I combined three maps of Chernobyl fallout: Cs-137 map, Sr-90 map and Pu-239 map.
Map scales are the same.
Lowest contour levels for Cs and Sr are the same (1 Ci/km^2), Pu contour is ten times lower (0.1 Ci/km^2).
This visually demonstrates that Cs is about ten times more widespread fallout component than Sr.
...
10x more than Pu?

Color legend is yellow=Cs,Sr, red=Pu ?
 
  • #4
mheslep said:
10x more than Pu?

Color legend is yellow=Cs,Sr, red=Pu ?

No. The same territory is shown three times. (You can easily see the Kiev Sea in each map).
Left map (yellow/red) is Cs.
To the lower right of it is the smaller central region of the same map with Sr-90 - green/blue blob.
On the right again the same territory with orange Pu-239 blob.
 

1. How does the amount of Cs, Sr and Pu fallout from meltdown differ?

The amount of Cs, Sr and Pu fallout from a meltdown differs based on a variety of factors such as the specific reactor and conditions of the meltdown, the distance from the meltdown site, and weather patterns. Generally, Cs and Sr are more volatile and tend to travel further in the atmosphere compared to Pu which is heavier and falls to the ground closer to the meltdown site.

2. What are the potential health effects of Cs, Sr and Pu fallout from a meltdown?

The potential health effects of Cs, Sr and Pu fallout from a meltdown depend on the amount and duration of exposure, as well as the specific isotopes present. Cs and Sr are known to accumulate in the body and can increase the risk of cancer, while Pu is a highly toxic element that can cause a range of health issues including cancer, respiratory problems, and organ damage.

3. How long will Cs, Sr and Pu remain in the environment after a meltdown?

The half-lives of Cs, Sr and Pu vary, with Cs having a half-life of about 30 years, Sr having a half-life of about 29 years, and Pu having a half-life of about 24,000 years. This means that Cs and Sr will remain in the environment for decades, while Pu will remain for thousands of years. However, the level of radioactivity decreases over time, so the risk of exposure also decreases.

4. Can Cs, Sr and Pu fallout from a meltdown be detected in other parts of the world?

Yes, Cs, Sr and Pu fallout from a meltdown can be detected in other parts of the world through air and water currents. Small amounts of these radioactive materials have been detected in various regions after major nuclear accidents such as Chernobyl and Fukushima. However, the levels are usually very low and not considered a significant health risk.

5. What measures are in place to monitor and prevent Cs, Sr and Pu fallout from a meltdown?

There are several international organizations, such as the International Atomic Energy Agency (IAEA), that monitor and report on nuclear accidents and their potential impacts. Additionally, many countries have their own regulatory agencies and emergency response plans in place to prevent and mitigate the effects of nuclear accidents. Regular monitoring of air, water, and food sources also helps to identify any potential contamination from Cs, Sr and Pu fallout.

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