Receive and file this report. Barry R. Wallerstein, D.Env. Attachment 1 provides a summary of positions compiled from the responses, along with copies of the letters received. Attachment 2 provides a summary of the comments made along with the staff responses.
Staff also believes that an independent scientific review is appropriate.
Several noted scientists have been contacted, and have indicated a willingness to review, in an expedited manner, and as their time permits, the issue regarding the estimate of diesel particulate from measurements of elemental carbon. Inc. Staff will forward their comments to the Board and make them available to the public when received. This process will allow for a full formal peer review in a major journal, and ultimately publication for widespread availability. Recognizing the substantial level of uncertainties, especially with regard to the issue of estimating diesel particulate, staff believes it is important to play a leadership role in the development of techniques to directly measure diesel particulate in ambient air samples. Funding will be sought from ARB and EPA for this purpose.