Abstract
Chemical herder augmented in-situ burning (ISB) is one of the most viable oil spill response techniques in partially ice-covered waters. Herein we report on the impacts of herder-mediated ISB tests on ambient air quality by making atmospheric measurements during ISB field tests in partially ice-covered waters in Fairbanks, Alaska. Concentrations of PM2.5, six combustion gases (CO, CO2, NO, NO2, NOx, SO2), volatile organic compounds (VOCs), and herding agent (OP-40) in the airborne plume (6–12 m downwind) were measured during three ISB events. PM2.5 concentrations significantly (p-value = 0.8014) exceeded NAAQS (24 h) exposure limits, while the remaining pollutants were found significantly (p-value <0.05) below the established exposure limits. OP-40 herder was not detected in the collected aerosol samples. To our knowledge, this is the first study on atmospheric emissions in the vicinity of a field-scale herder-augmented oil-spill ISB study in a high-latitude Arctic environment and provides information that is helpful to ensure the safety and well-being of on-site response personnel.
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