Exposure of the Skin to Methyl Bromide: A Study of Six Cases Occupationally Exposed to High Concentrations during Fumigation

Abstract
1 The effects of exposure of the skin to high concentrations of methyl bromide were studied in 6 cases, who had been unintentionally exposed. 2 Exposure to high concentrations of methyl bromide (approximately 40 g/m3) for 40 min can lead to redness and blistering of the skin. This cannot be prevented by wearing standard protective clothing. 3 Skin lesions show a preference for relatively moist skin areas. 4 Plasma bromide levels were highest immediately following exposure (mean 9.0 ± 1.4 mg/l) and fell in subsequent hours (mean 6.8 ± 2.3 mg/l 12 h after the exposure), suggesting absorption of (methyl) bromide through the skin. 5 No systemic effects were noted in this series. 6 Fumigation with methyl bromide should not be done in such a way as to require the presence of workers inside closed areas, where methyl bromide is released.

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