A Geiger Counter used for measuring the amount of radiation in an area, 2017, The Chernobyl Gallery
The damaged Chernobyl reactor, 2008, The Chernobyl Gallery
After the Chernobyl accident, several 'legal intstruments' were enforced, breaking barriers of safety regulation (seeing as though nuclear power plants before hadn't been as safe).
For example, Convention on Nuclear Safety, happened, and international awareness of nuclear safety grew, breaking the barriers in safety regulations.
A peer review system has also been implemented in Ukraine, meaning there will always be multiple people in range to check the safety of any given power plant.
IAEA (International Atomic Energy Agency) has worked to make sure no further nuclear incidents can occur. Despite this, nuclear accidents have occured, an example being the Three Mile Island Incident in the U.S
Safety improvements to the reactor design were made to insure that the new design wouldn't have as much of a risk as Chernobyl's original design breaking the barriers in safety regulations.The safety of reactors were not only looked at in Europe, but worldwide.
A Geiger Counter used for measuring the amount of radiation in an area, 2017, The Chernobyl Gallery
The damaged Chernobyl reactor, 2008, The Chernobyl Gallery