Nothing graphic, unless you object to pictures of people working - he was documenting the work going on onsite.
It is very upsetting if you stop to realize that literally every single person filmed was dead between hours after being filmed [the guys on the roof handling the graphite rods] to weeks or months. IIRC the longest anybody survived was something like 1.5 years for a few people that really didnt get that close in and only came into casual contact with environmental contamination [dirty clothing or dirty equipment.]
Actually almost every single tool shown in use, vehicle and so forth was abandoned onsite. From what I heard from a few health physics techs was that even most of the dirty clothing was simply bagged up and left in barracks, with clean clothing being brought in.
Lest we forget, Chernobyl wasn’t the first Soviet nuclear disaster contaminating large areas. Forty years earlier there was Chelyabinsk/Kyshtym. It’s still not cleaned up, either, and it’s contaminated worse than Chernobyl: