This study examined the potential environmental impacts from the use of heavy equipment for offshore oil and gas platform decommissioning in the Pacific Outer Continental Shelf (OCS) Region. This produced an in-depth analysis of the effects of those operations on regional air quality. Previous studies examined the air emissions impacts utilizing a general, order-of-magnitude approach appropriate for approximating the emissions from decommissioning. This analysis examines the air emissions to a permit-level-of-detail to examine the activities producing the largest impacts, as well as the feasibility and availability of mitigation strategies to reduce air emissions. A wide range of air emissions estimation inputs and calculation approaches were examined. The emissions levels as estimated in this assessment are substantial if higher-polluting equipment is used. However, use of clean diesel engines significantly reduces emissions from these activities.

USD: $105,000

2018-01-30 → 2019-06-14