site.btaConcentration of Ammonia, Hydrogen Sulfide in Air Near Serbian Border within Norm
The concentration of ammonia and hydrogen sulfide, measured by the mobile station near the Kalotina checkpoint on the Bulgarian-Serbian border in the last three days, is below the threshold, the Environment and Water Ministry reported here on Thursday.
Some 50 people were poisoned and two killed after a train carrying ammonia derailed, spilling its cargo in southeastern Serbia on Sunday night.
An analysis was conducted on the measurements taken between December 26 and 29 and the levels of ammonia and hydrogen sulfide were found to be below the threshold values, show the data collected by the mobile automatic station, which collected the samples. The overall air quality was found to be within the norm as well.
A mobile team from the Environment Executive Agency is monitoring the air quality near the Serbian border on the orders of caretaker Environment and Water Minister Rositsa Karamfilova. A mobile station was placed right next to the Kalotina border crossing.
The extraction of the train's ammonia tank containers starts on Thursday and will last for at least five days. A state of emergency is still in effect in the southeastern Serbian town of Pirot until the containers are taken away. People living near the site where the train derailed will be evacuated and traffic will once again be closed along a section of Pan-European Corridor X. According to the latest measurements, there is no ammonia in the air and water.