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25 November
6:54
08:49
15:43
Current weather
1.2 °
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Humidity
  90 %
Air pres.
  755 mm
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Wind, m/s 5-10 5-10 5-10 5-10 5-10 7-12 5-10 5-10 5-10 5-10
direction of the wind

Monthly Review

The average values EDR per month                      

City  [nSv/h]  

 During October 2020, the average monthly results of the determination of the exposure dose rate (EDR) at the monitoring points of the radiometric network of the National Hydrometeorological Service (NHMS) in different regions of Ukraine (outside the exclusion zone of the Chornobyl NPP) ranged from 70 nSv/h (M Kupiansk) to 149 nSv/h (M Korosten'), the minimum and maximum indicators of EDR, the variation of which for each monitoring point was mainly due to measuring errors, was recorded  in M Kupiansk (52nSv/h) and M Korosten' (166 nSv/h) respectively.

In general, the overall radiation situation in Ukraine was steady and depended on the distribution of natural radionuclides in the upper layers of the earth.

 The impact of aerosol emissions of NPP on the level of radioactive contamination of atmospheric air was disappearing small.

 Doses of additional irradiation of the population of Ukraine as a result of the operation of the NPP were significantly lower than the permissible levels determined by the Radiation Safety Standards of Ukraine (RSSU).

 The general distribution of the averaged per month of the EDR indicators on the radiometric network of the NHMS of Ukraine is presented in Fig.1. These indicators are ranged from 70 to 130 nSv/h on more than 90 % of Ukraine's territory. The highest values of EDR were observed on the territory that was subjected to significant radioactive contamination as a result of the Chernobyl accident, and on the observation points of the radiometric network of NHMS  M Korosten' 149 nSv/h, and on  M Chornobyl-171nSv/ h.

 The table shows the average of the EDR values per month in all regional centres of Ukraine, the city of Kyiv and the town of Chernobyl.

 The results of the measurements show that in October there was no movement of air masses across Ukraine, which would be contaminated with radioactive substances of technogenic origin and capable of increasing the level of natural radiation background.

                         

 
Vinnytsia 116    
Dnipro 108    
Donetsk data is not available    
Zhytomyr 108    
Zaporizhzhya 95    
Ivano-Frankivs'k 91    
Kyiv 104    
Kropyvnytskyi 123    
Lugans'k data is not available    
Lutsk 92    
Lviv 97    
Mykolaiv 116    
Odesa 90    
Poltava 104    
Rivne 106    
Simferopol' data is not available    
Sumy 109    
Ternopil' 118    
Uzhgorod 99    
Kharkiv 117  
 
Kherson 126    
Khmelnytskyi 107    
Cherkasy 112    
Chernivtsi 120    
Chernigiv 100    
Chornobyl 171    

 

 


Fig.1.
 The radiometric network of  NHMS of Ukraine. Averaged the values of EDR indicators per month. 

 

 

 

 

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