P293 Pulmonary injury associated with a spray application of a water-based waterproofing product. (1st September 2016)

• Record Type: Journal Article
• Authors: Scheepers, Paul TJ; Masen-Poos, Lucie; Rooy, F Van; Dalen, Eline Van; Cremers, Robbert; Lichtenbeld, Hera; Biesma, Bonne; Koponen, Ismo K; Larsen, Soren Thor; Wolkoff, Peder; Norgaard, Asger W
• Is Part Of: Occupational and environmental medicine. Volume 73(2016)Supplement 1
• Page Start: A219
• Page End: A220
• Publication Date: 2016-09-01
• Subjects: Medicine, Industrial -- Periodicals; Environmental health -- Periodicals; 616.980305
• DOI: 10.1136/oemed-2016-103951.608
• Languages: English
• ISSNs: 1351-0711

Abstract

Abstract : Ten workers suffered from respiratory complaints after spray impregnation of hardwood furniture with a waterproofing product that contained a fluorinated acrylate copolymer in an aqueous suspension. One litre of the product was sprayed during 4 min inside a workshop area with a volume of ca. 2 400 m 3 . A worker, who entered the workshop 3 h after the impregnation, was hospitalised with dyspnea, severe hypoxia, cough, blank sputum, fever, tremors and tingling extremities. Later a severe chemical pneumonitis was diagnosed. On the following morning, 15 h after the impregnation, nine workers in an adjacent room of 1 200 m 3 in the same building experienced the following respiratory symptoms: dry cough, chest tightness and sub-sternal chest pain. No other sources of causative exposure could be identified. Reconstruction of the spray application in a 20 m 3 steel chamber showed trimethyl silanol, glycol ethers and fluoroalkenes as major volatile organic compounds (VOCs). The fluoroalkenes reached their maximum concentrations 1–2 h after application and persisted in the gas phase along with trimethyl silanol and the glycol ethers. Immediately after the spray application aerosols were observed in a maximum concentration of 6.3 × 104 cm –3 (5.6 to 560 nm). Mass concentrations were 0.095 and 10 mg/m 3 in the size ranges 5.6 to 560 nm and 0.22 to 30 µm, respectively. After 15 h the mass concentrations of the airborne particle had decreased to values less than 10 µg/m 3 in both size ranges. The worker who developed chemical pneumonitis was a smoker. We hypothesise that rolling and smoking cigarettes contaminated with fluoropolymer was causative. The respiratory symptoms in the 9 workers exposed 15 hours after the spray event may be caused by combined exposure to trimethyl silanol, glycol ethers and fluoroalkenes, which persisted in the gas phase up to 24 h after application of the product.