The Experts below are selected from a list of 27 Experts worldwide ranked by ideXlab platform
Linn Saarinen - One of the best experts on this subject based on the ideXlab platform.
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Comparison of tanker drivers' occupational exposures before and after the installation of a Vapour Recovery System
Journal of Environmental Monitoring, 2000Co-Authors: Linn Saarinen, M. Hakkola, Jyrki KangasAbstract:The purpose of this study was to Compare tanker drivers' occupational exposure levels before and after the installation of Vapour Recovery facilities at 14 service stations. Road tanker drivers are exposed when handling volatile petrol liquid in bulk in the distribution chain. The drivers' exposure was studied during the unloading operation as the bulk petrol flowed into underground storage tanks, displacing Vapours in the tank space and causing emission to the environment and the drivers' work area. The exposures were measured again when the dual point Stage I Vapour Recovery Systems were installed for recycling Vapours. Short-term measurements were carried out in the drivers' breathing zones by drawing polluted air through a charcoal tube during unloading. The samples were analysed in the laboratory by gas chromatography for C3-C11 aliphatic hydrocarbons, tertbutyl methyl ether (MTBE), tert-amyl methyl ether (MTAE), benzene, toluene and xylene. The road tanker loads delivered consisted of oxygenated and reformulated petrol (E95 and E98 brands), which contained on average 13% oxygenates. Before the installation of the Vapour Recovery System, the geometric mean (GM) concentration of aliphatic hydrocarbons was 65 mg m-3 (range 6-645 mg m-3) in the drivers' breathing zones. After the installation at the same service stations, the corresponding exposure level was 8.3 mg m-3 (range
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comparison of tanker drivers occupational exposures before and after the installation of a Vapour Recovery System
Journal of Environmental Monitoring, 2000Co-Authors: Linn Saarinen, M. Hakkola, Juhani KangasAbstract:The purpose of this study was to compare tanker drivers' occupational exposure levels before and after the installation of Vapour Recovery facilities at 14 service stations. Road tanker drivers are exposed when handling volatile petrol liquid in bulk in the distribution chain. The drivers' exposure was studied during the unloading operation as the bulk petrol flowed into underground storage tanks, displacing Vapours in the tank space and causing emission to the environment and the drivers' work area. The exposures were measured again when the dual point Stage I Vapour Recovery Systems were installed for recycling Vapours. Short-term measurements were carried out in the drivers' breathing zones by drawing polluted air through a charcoal tube during unloading. The samples were analysed in the laboratory by gas chromatography for C3–C11 aliphatic hydrocarbons, tert-butyl methyl ether (MTBE), tert-amyl methyl ether (MTAE), benzene, toluene and xylene. The road tanker loads delivered consisted of oxygenated and reformulated petrol (E95 and E98 brands), which contained on average 13% oxygenates. Before the installation of the Vapour Recovery System, the geometric mean (GM) concentration of aliphatic hydrocarbons was 65 mg m−3 (range 6–645 mg m−3) in the drivers' breathing zones. After the installation at the same service stations, the corresponding exposure level was 8.3 mg m−3 (range < 1–79 mg m−3). The GM of the MTBE concentrations was 8.6 mg m−3 (range 1–67 mg m−3) without Vapour Recovery and 1.5 mg m−3 (range < 0.1–10 mg m−3) with Vapour Recovery. The differences between the aliphatic hydrocarbons and the MTBE exposure levels during the unloading of the road tankers without and with Vapour Recovery were statistically significant (p < 0.05).
Jyrki Kangas - One of the best experts on this subject based on the ideXlab platform.
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Comparison of tanker drivers' occupational exposures before and after the installation of a Vapour Recovery System
Journal of Environmental Monitoring, 2000Co-Authors: Linn Saarinen, M. Hakkola, Jyrki KangasAbstract:The purpose of this study was to Compare tanker drivers' occupational exposure levels before and after the installation of Vapour Recovery facilities at 14 service stations. Road tanker drivers are exposed when handling volatile petrol liquid in bulk in the distribution chain. The drivers' exposure was studied during the unloading operation as the bulk petrol flowed into underground storage tanks, displacing Vapours in the tank space and causing emission to the environment and the drivers' work area. The exposures were measured again when the dual point Stage I Vapour Recovery Systems were installed for recycling Vapours. Short-term measurements were carried out in the drivers' breathing zones by drawing polluted air through a charcoal tube during unloading. The samples were analysed in the laboratory by gas chromatography for C3-C11 aliphatic hydrocarbons, tertbutyl methyl ether (MTBE), tert-amyl methyl ether (MTAE), benzene, toluene and xylene. The road tanker loads delivered consisted of oxygenated and reformulated petrol (E95 and E98 brands), which contained on average 13% oxygenates. Before the installation of the Vapour Recovery System, the geometric mean (GM) concentration of aliphatic hydrocarbons was 65 mg m-3 (range 6-645 mg m-3) in the drivers' breathing zones. After the installation at the same service stations, the corresponding exposure level was 8.3 mg m-3 (range
Juhani Kangas - One of the best experts on this subject based on the ideXlab platform.
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comparison of tanker drivers occupational exposures before and after the installation of a Vapour Recovery System
Journal of Environmental Monitoring, 2000Co-Authors: Linn Saarinen, M. Hakkola, Juhani KangasAbstract:The purpose of this study was to compare tanker drivers' occupational exposure levels before and after the installation of Vapour Recovery facilities at 14 service stations. Road tanker drivers are exposed when handling volatile petrol liquid in bulk in the distribution chain. The drivers' exposure was studied during the unloading operation as the bulk petrol flowed into underground storage tanks, displacing Vapours in the tank space and causing emission to the environment and the drivers' work area. The exposures were measured again when the dual point Stage I Vapour Recovery Systems were installed for recycling Vapours. Short-term measurements were carried out in the drivers' breathing zones by drawing polluted air through a charcoal tube during unloading. The samples were analysed in the laboratory by gas chromatography for C3–C11 aliphatic hydrocarbons, tert-butyl methyl ether (MTBE), tert-amyl methyl ether (MTAE), benzene, toluene and xylene. The road tanker loads delivered consisted of oxygenated and reformulated petrol (E95 and E98 brands), which contained on average 13% oxygenates. Before the installation of the Vapour Recovery System, the geometric mean (GM) concentration of aliphatic hydrocarbons was 65 mg m−3 (range 6–645 mg m−3) in the drivers' breathing zones. After the installation at the same service stations, the corresponding exposure level was 8.3 mg m−3 (range < 1–79 mg m−3). The GM of the MTBE concentrations was 8.6 mg m−3 (range 1–67 mg m−3) without Vapour Recovery and 1.5 mg m−3 (range < 0.1–10 mg m−3) with Vapour Recovery. The differences between the aliphatic hydrocarbons and the MTBE exposure levels during the unloading of the road tankers without and with Vapour Recovery were statistically significant (p < 0.05).
M. Hakkola - One of the best experts on this subject based on the ideXlab platform.
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Comparison of tanker drivers' occupational exposures before and after the installation of a Vapour Recovery System
Journal of Environmental Monitoring, 2000Co-Authors: Linn Saarinen, M. Hakkola, Jyrki KangasAbstract:The purpose of this study was to Compare tanker drivers' occupational exposure levels before and after the installation of Vapour Recovery facilities at 14 service stations. Road tanker drivers are exposed when handling volatile petrol liquid in bulk in the distribution chain. The drivers' exposure was studied during the unloading operation as the bulk petrol flowed into underground storage tanks, displacing Vapours in the tank space and causing emission to the environment and the drivers' work area. The exposures were measured again when the dual point Stage I Vapour Recovery Systems were installed for recycling Vapours. Short-term measurements were carried out in the drivers' breathing zones by drawing polluted air through a charcoal tube during unloading. The samples were analysed in the laboratory by gas chromatography for C3-C11 aliphatic hydrocarbons, tertbutyl methyl ether (MTBE), tert-amyl methyl ether (MTAE), benzene, toluene and xylene. The road tanker loads delivered consisted of oxygenated and reformulated petrol (E95 and E98 brands), which contained on average 13% oxygenates. Before the installation of the Vapour Recovery System, the geometric mean (GM) concentration of aliphatic hydrocarbons was 65 mg m-3 (range 6-645 mg m-3) in the drivers' breathing zones. After the installation at the same service stations, the corresponding exposure level was 8.3 mg m-3 (range
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comparison of tanker drivers occupational exposures before and after the installation of a Vapour Recovery System
Journal of Environmental Monitoring, 2000Co-Authors: Linn Saarinen, M. Hakkola, Juhani KangasAbstract:The purpose of this study was to compare tanker drivers' occupational exposure levels before and after the installation of Vapour Recovery facilities at 14 service stations. Road tanker drivers are exposed when handling volatile petrol liquid in bulk in the distribution chain. The drivers' exposure was studied during the unloading operation as the bulk petrol flowed into underground storage tanks, displacing Vapours in the tank space and causing emission to the environment and the drivers' work area. The exposures were measured again when the dual point Stage I Vapour Recovery Systems were installed for recycling Vapours. Short-term measurements were carried out in the drivers' breathing zones by drawing polluted air through a charcoal tube during unloading. The samples were analysed in the laboratory by gas chromatography for C3–C11 aliphatic hydrocarbons, tert-butyl methyl ether (MTBE), tert-amyl methyl ether (MTAE), benzene, toluene and xylene. The road tanker loads delivered consisted of oxygenated and reformulated petrol (E95 and E98 brands), which contained on average 13% oxygenates. Before the installation of the Vapour Recovery System, the geometric mean (GM) concentration of aliphatic hydrocarbons was 65 mg m−3 (range 6–645 mg m−3) in the drivers' breathing zones. After the installation at the same service stations, the corresponding exposure level was 8.3 mg m−3 (range < 1–79 mg m−3). The GM of the MTBE concentrations was 8.6 mg m−3 (range 1–67 mg m−3) without Vapour Recovery and 1.5 mg m−3 (range < 0.1–10 mg m−3) with Vapour Recovery. The differences between the aliphatic hydrocarbons and the MTBE exposure levels during the unloading of the road tankers without and with Vapour Recovery were statistically significant (p < 0.05).
Jacques Fournier - One of the best experts on this subject based on the ideXlab platform.
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a method of checking the correct operation of a Vapour Recovery System
2000Co-Authors: Jeanpierre Nitecki, Jacques FournierAbstract:A method for checking that a Vapour Recovery System is operating correctly, and for generating an alarm if it is not, is characterised by the steps of constantly detecting the Vapour delivery rate and transmitting it to comparison means 22 which compare it to a liquid delivery rate. If the comparison of the two is outside a predetermined range an alarm 20' is triggered in order to indicate a malfunction somewhere in the System. The dispensing installation in which the Vapour Recovery System operates comprises a storage tank 1 and a liquid dispensing line (2, fig.3), having a counting means 4 and delivery pump (3, fig.3). A Vapour Recovery line 16 includes a Recovery pump (8, fig.3). The counting means 4 in the liquid line is preferably connected to a pulse generator or coder 5 and a computer 6, which calculates the volume and price of liquid dispensed and then displays it at 7. The value of the delivery flow rate to which the Vapour flow rate is compared may be constantly determined by counting means 4 arranged in the liquid line, or it may be a fixed value relating to the maximum flow rate of liquid.
