[en] The process of investigating air quality and noise impacts from site characterization and from repository development began with a set of construction/operation descriptions provided for the repository and for the exploratory shaft in early draft form. Air quality impacts resulting from these descriptions were developed. A document was prepared in response to the needs expressed after the completion of the first report. This present report is a revision of that second document. Many air pollutant emission estimates in this document differ from earlier estimates. The differences are the result of changes in the resources consumed, the equipment used, and the schedule of activities as well as information derived from recent studies of the control. The approach used in this report is to present all data and calculations in tabular form, the most economical means of presenting the large data set and calculations