benzene sampling Articles
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Achieving low-level detection of benzene in beverages with an automated headspace vial sampler
Abstract Eight commercially available beverage samples were selected for low-level detection of benzene by static headspace analysis. This study will use the Teledyne Tekmar HT3 Automated Headspace Vial Sampler to analyze parts per trillion (ppt) levels of benzene in beverages. A GC/MS system will be employed in full scan/SIM mode for separation and detection of benzene, as well as other volatile ...
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Reduction of
Escherichia coli bacteria from contaminated water by combining hydrogen peroxide, ozone and ultraviolet lightThis study demonstrates the reduction of Escherichia coli bacteria from contaminated water when the water is treated with advanced oxidation processes utilising the following combinations: hydrogen peroxide (H2O2) and ozone (O3), ultraviolet light (UV) and hydrogen peroxide (H2O2), and ultraviolet light (UV) and ozone (O3). Approximately 1 × 108cell/mL of E. coli were spiked into water ...
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Benzene Monitoring: Comparing Real-Time to Method 325
Executive Summary EPA’s Refinery Sector Rule, issued in 2015, includes monitoring air concentrations of benzene along the perimeter/fenceline of U.S. refineries. EPA Method 325 A & B requires refineries to continuously monitor benzene using passive sampling tubes over 14-day intervals. Method 325A details field protocols for the deployment and collection of passive sampling tubes, while ...
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U.S. EPA Proposed Benzene Fenceline Monitoring for Refineries Amongst Other MACT and NSPS Changes
U.S. EPA has proposed an amendment to 40 CFR Parts 63, Subpart CC and Subpart UUU that requires all petroleum refineries to deploy passive time-integrated benzene samplers at the fenceline (where fenceline is equivalent to the facility property line) of their facility to alert them of fugitive emissions from leaks of Subpart CC and UUU process equipment. The proposed amendment also requires the ...
By All4 Inc.
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Emission of volatile organic compounds from solid waste disposal sites
The emission of volatile organic compounds (VOCs) from a solid waste disposal site for municipal solid wastes was quantified. The VOCs contained in the landfill gas taken at the site were benzene, toluene, xylenes, ethyl benzenes, and trimethyl benzenes, while the concentrations of chlorinated compounds were very low. The concentration of benzene in the landfill gas samples ranged from below the ...
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FPI Contributed to Water Environment Monitoring during Hangzhou 2022 Asian Games
In preparation for the upcoming Hangzhou 2022 Asian Games, Hangzhou Municipal Bureau of Ecology and Environment organized an environmental quality assurance drill in Hangzhou. More than 80 participants attended this event. The objective was to strengthen the teamwork and operational capabilities of teams during unexpected environmental emergencies. After predicting related environmental emergency ...
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