When nuclear cores were exposed,radioactive background in local area will increase and affect local population.
Violence of chemical explosions will determine height that the nuclear slag will reach.Winds will drag them towards nearby areas,forming a radioactive plume and it'll depend on moment in which accident occurs and amount of nuclear cores expelled.If it's rainy season there, it'll be #Toxic and #RadioToxic #BlackRain watering your bodies, those of your animals, your crops and your homes

In event of an radiological and chemical accident, it is logical to think that SIX reactor cores will go into #MeltDown one after the other during several days with chemical explosions, ejecting #Radionuclides and releasing radiation. #Radionuclides can be inhaled and contaminate surfaces, water, food, everything. Many are #Toxic and most are #Radiotoxic: when inside the body,they compete with chemical elements that are necessary for our biological functions and are incorporated into tissues.

What nonsense!
Natural uranium has 0.72%
of #U235 while depleted uranium has 0.3% of #U235
What has exploded in town of #Khmelnitski to the West of #Kiev,has been an ammunition store but it does not appear that depleted uranium there was in powder form of dust, so I doubt that a radioactive plume has been released.
If something has been detected over #Poland, it must be a smell of someone's fart
And yes,#uranium is #toxic
Both #uranium235 and #uranium238 are #radiotoxic

Radionuclides are unstable nuclei of chem elements: they emit radiation
#Tritium is an isotope of #Hydrogen:a beta emitter with 12.32 yrs half-life
It is produced,for example,by neutron activation of water used to cool nuclear reactors spent fuel
Beta radiation has small penetrating length when source is external and also that of #Tritium is not very energetic: continuous with 18.6 keV maximum but it's not innocuous when Tritium is inside human body due to food or water ingestion: #radiotoxic .