Research on the 10-m safety zone during a test fumigation of a factory with sulfuryl fluoride
Onderzoek naar de 10-meterzone bij een proefgassing van een gebouw met sulfurylfluoride (SO2F2)
26 May 2012, PDF |
34 pages |
Mooij M, Schols E, van Putten EM, Fortezza F, de Groot AC
RIVM Report 609021088
Based on the results of a test fumigation of a factory with the gas sulfuryl fluoride for controlling termites, the National Institute for Public Health and the Environment (RIVM) concluded that, in this case, the 10-m safety zone was not adequate. Measurements taken during the test fumigation at the furthest extent of the 10-m safety zone and outside of it revealed gas levels higher than those assessed to be safe. There were a number of exceedances during a period of a few minutes, with 4.8 ppm sulfuryl fluoride being the highest concentration measured. This test was the first of its kind with the gas sulfuryl fluoride in the Netherlands. One of the required safety measures for such fumigations is that the limit value of 3 ppm sulfuryl fluoride is not to be exceeded at a distance of 10 m around the building. The RIVM was commissioned by the VROM-Inspectorate to determine if, during such fumigations, the 10-m safety zone would provide sufficient protection. The RIVM recommends that other (test) fumigations with the gas sulfuryl fluoride be carried out and studied, such as those in buildings with lower ventilation points and those performed during different weather conditions (for example, a strong wind). The RIVM also advises that fumigations of buildings with this gas be subject to government supervision.