Article also says:
> one worker on duty when the Russians seized control of the area said the convoy had kicked up clouds of radioactive dust while driving through the highly toxic ‘Red Forest’
From what I know when you go with a tour guide in Chernobyl they don't drive through the 'Red Forest', and they say to not pickup anything and bring your own food and water. The problem with driving in the 'Red Forest' is that the movement of vehicles creates clouds of dust, that go on the vehicle itself and especially on the vehicle behind, and I believe that inhaling radioactive dust is terrible for your health