Complex sentence: This could in theory be released in weakly ventilated areas in the treatment plant and all plants in Europe must now be assessed under the EU ATEX Directive and zoned where explosion risks are identified to prevent future accidents.
Split into simpler sentences: This could in theory be released in weakly ventilated areas in the treatment plant. All plants in Europe must now be assessed under the EU ATEX Directive and zoned where explosion risks are identified to prevent future accidents.