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Title: Thermal Degradation and Combustion of Plant Protection Products // Proceedings of the Ninth International Seminar on Fire and Explosion Hazards. Vol. 2: 21-26 April 2019, Saint Petersburg, Russia
Creators: Borucka M.; Celiński M.; Sałasińska K.; Gajek A.
Organization: Central Institute for Labour Protection – National Research Institute
Imprint: Saint Petersburg, 2019
Collection: Общая коллекция
Document type: Article, report
File type: PDF
Language: English
DOI: 10.18720/SPBPU/2/k19-107
Rights: Свободный доступ из сети Интернет (чтение, печать, копирование)

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In a fire, the plant protection products can produce large amounts of toxic effluents in the smoke. Since most fire deaths and injuries result from inhalation of toxic effluents, knowledge of the amount and type of generated substances is important for fire hazard assessment and investigation. In this study, thermal degradation and combustion of three plant protection products, which are based on: quinoclamine (Product 1); spiroxamine, tebuconazole and triadimenol (Product 2); and tebuconazole (Product 3) were investigated. Cone calorimeter (ISO 5660) was used to measure ignitability and heat release rate. Thermal decomposition of the materials was studied using thermal analysis coupled with the Fourier transform infrared spectroscopy. The steady-state tube furnace (ISO 19700) was used to generate gaseous combustion products. The emitted thermal degradation products were identified by gas chromatography with mass spectrometry. Among all tested compounds, Product 2 was found to be the most flammable plant protection product. The mechanism of thermal degradation depends on the product type. In fire effluents, different kinds of chemicals were identified, including volatile and semi-volatile compounds including substituted benzenes, aldehydes, aliphatic hydrocarbons and polycyclic hydrocarbons. Most of detected substances are carcinogenic and mutagenic with biological accumulation.

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