OCS Study BOEM 2018-020. Prepared by Eastern Research Group, Inc., Sacramento, CA for U.S. Dept. of the Interior, Bureau of Ocean Energy Management, Alaska OCS Region, Anchorage, AK. 58 pp.
OCS Study BOEM 2018-020. Prepared by Eastern Research Group, Inc., Sacramento, CA for U.S. Dept. of the Interior, Bureau of Ocean Energy Management, Alaska OCS Region, Anchorage, AK. 58 pp.
The overall objective of the BOEM Arctic Air Quality Impact Assessment Modeling Study (Arctic AQ Modeling Study or study) is to facilitate BOEM’s assessment of potential air quality impacts from oil and gas exploration, development, and production on the Alaska OCS and related onshore activities. This study uses computerized atmospheric dispersion modeling and photochemical grid modeling to estimate increases in concentrations of emissions from existing and proposed anthropogenic activities. The air quality analysis is only as comprehensive and accurate as the emission inventory on which the analysis is based, and only as accurate as the meteorological dataset applied to disperse and transport the pollutants.
The Arctic AQ Modeling Study is organized into the following tasks: • Task 1: Science Review Group • Task 2: Conduct Meteorological Dataset Evaluation • Task 3: Prepare Emission Inventories • Task 4: Conduct Atmospheric Near-Field Dispersion Modeling • Task 5: Conduct Photochemical/Dispersion Far-Field Pollutant Modeling • Task 6: Prepare Emission Exemption Thresholds Evaluation • Task 7: On-Call Statistical Support.
...This report contains the background, methods used, and results obtained for the main task activities covering the meteorological data set evaluation (Task 2), emissions inventory development (Task 3), near-field atmospheric dispersion modeling (Task 4), photochemical grid modeling (Task 5), and the emission exemption thresholds (EET) evaluation including the far-field dispersion modeling analysis (Task 6).