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Unformatted text preview: 1 Partitioning and VOCs Lecture#37 Review Partitioning Processes ICP #34 (cont.) VOCs and solubility VOCs and Air-Water Partitioning N: Ch. 3: 3.B.2 up to p 99 (CNP pg. 23-29) Partitioning Processes mass partitioning between phases (air-water- soil): at equilibrium the net transfer between phases is zero and final distribution is realized Air Soil Org. Air Water Partitioning Processes (VOCs) VOCs: Volatile Organic Compounds organic liquid-air (vapor pressure) P v or P organic liquid-water (solubility) K s or C sat organic in water-air (Henrys law) K H or H g ICP #34 (VOCs Partitioning) ICP #34 (VOCs Partitioning) You are an expert hired by the prosecution in the Durex case. Assume that the dumpster that the boys climbed into had the dimensions of 2 m x 1 m x 1.5 m and one 1-liter bottle of toluene was found in the dumpster. a) What is the maximum concentration of toluene that the boys could have been exposed to? Does this violate permitted exposure levels? What are the hazards associated with such exposure? ICP #34 (VOCs Partitioning) Toluene (HAP)-see MSDS for data PEL for toluene: 200 ppm Hazards of Toluene: Inhalation : may cause irritation of upper respiratory tract. Symptoms include fatique headache, dizziness and drowsiness...
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