The first commercial application of photoionization detection was in 1973 as a hand-held instrument for the purpose of detecting leaks of VOCs, specifically vinyl chloride monomer (VCM), at a chemical manufacturing facility.
The earliest commercial implementation of photoionization detection occurred in 1973 as an on-site tool to locate leaks of volatile organic compounds (VOCs), particularly vinyl chloride monomer (VCM), at a chemical facility.