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Chernobyl Still Burns via Greenpeace

The wildfires started on April 3rd, due to abnormally hot, dry and windy weather. They are now the biggest fires ever recorded in the Chernobyl exclusion zone. What is one of the largest wildlife areas in Europe will take years to recover.

With the Greenpeace Russia forest team and global mapping hub, I have been following these wildfires since they began. Satellite images show that an estimated 57 000 hectares of the Cherbobyl exclusion zone has burned so far. That is 22% of the total area of the exclusion zone. 

As I am writing this, three weeks after the start of the fires, at least three of the largest fires continue burning. One of them is located close to the site of the old nuclear power plant, only 4 kilometers away from the sarcophagus. Hundreds of ill-equipped firefighters and foresters are currently trying to get the fires in Northern Ukraine under control. 

The wind has carried some of the smoke over more populated areas. On the 16th of April, plumes of smoke caused smog in Kyiv, 250 kilometers away and although they did not exceed norms, higher levels of radioactivity than usual were detected. The smoke and ash have also crossed borders: the Norwegian Radiation and Nuclear Safety Authority registereda small increase of caesium-137 concentrations in the air in Norway.

Increased activity of Caesium-137 and other radionuclides in the air can lead to a rise in levels of cancer. Whoever can smell the fire could also inhale these radioactive substances. 

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Fire releases these particles into the air where wind can transport them over long distances, eventually expanding the boundaries of radioactive contamination. There is currently no data on how much nuclear material has been brought into the atmosphere because of these fires, so we don’t know how far they have travelled. It is possible that most of the radionuclides will settle within the exclusion zone and nearest area, as these are heavy particles. 

We know from previous (smaller) fires that happened in the area in 2015 that scientists found a release of 10.9 TBq caesium-137, 1.5 TBq of strontium-90, 7.8 GBq of plutonium-238 , 6.3 GBq of plutonium-239, 9.4 GBq of plutonium-239 and 29.7 GBq americium-241. It is clear that the numbers will be higher this year. 

Close to the fires, firefighters and local people are exposed to risks from both smoke inhalation and radiation. Cities like Kyiv are exposed to the health impact of inhaling smoke in the short term and in the longer term, risk internal irradiation through contaminated berries, mushrooms and milk bought on the local markets. No-one is immune from radioactive products getting into their homes.

The consequences of Chernobyl are still here. People are still at risk; exposed and fighting on the frontlines. Forest fires in contaminated areas are a big problem for Ukraine, Belarus, and Russia where 5 million people still live in contaminated areas according to official data. These fires happen almost every year. 

The Greenpeace Russia firefighting squad has helped several times to extinguish the fires on contaminated territories. This year, our firefighters have not been able to go on site to help due to the coronavirus pandemic. 

These forest fires are burdening an emergency ministry already in the midst of a health crisis. This goes to show that other emergencies can be exacerbated by nuclear-related incidents  – a situation that we have little or no control over. 

Nuclear-related risks themselves are exacerbated by a lack of transparency: at the beginning of the fires, the first official accounts minimized the areas on fire by about 600 times. Secrecy was one of the reasons why the Chernobyl disaster was so severe in 1986: it was later confirmed in court that even the director of the Chernobyl power plant was not made aware of a disaster at the Leningrad nuclear power plant in 1975 that would have given clues to what happened in reactor 4. 

Chernobyl will continue to pose a threat for many generations to come. 

Rashid Alimov, is a nuclear campaigner at Greenpeace Russia.

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