title: Effect of UV-radiation on the migration of vinyl chloride monomer from unplasticized PVC pipes.
abstract: The effect of direct exposure to UV-radiation on the migration of vinyl chloride monomer (VCM) from unplasticized polyvinyl chloride (uPVC) pipes was investigated using locally manufactured pipes. Specimens 33-cm long were used throughout the research. The investigation was carried out, at different times of exposure to a UV-radiation. The VCM concentration in the water was evaluated using the gas chromatography (GC)/head-space technique. A VCM concentration of 2.3 microg/L (ppb) was detected after 14 days of exposure to the UV-radiation. The initial VCM concentration in the uPVC pipe was calculated and the diffusion coefficient of VCM was expressed as a function of time.
authors.affiliation: Research Institute, KFUPM, Dhahran, Saudi Arabia. mhmalack@kfupm.edu.sa
authors.forename: Muhammad H
authors.initials: MH
authors.lastname: Al-Malack
mesh_terms: D002273:Carcinogens / Q000032:analysis* / Q000737:chemistry*; D002849:Chromatography, Gas; D003252:Construction Materials; D008422:Materials Testing; D014466:Ultraviolet Rays; D014752:Vinyl Chloride / Q000032:analysis* / Q000737:chemistry*; D014881:Water Supply
chemical_list: D002273:Carcinogens; D014752:Vinyl Chloride