The Journal of the Air & Waste Management Association serves those involved in air pollution control and waste management by publishing timely and reliable information about practical and theoretical developments in the field. The Journal invites Association members and other environmental experts to submit manuscripts for consideration as either technical papers or notebook papers. For information on submitting manuscripts, please see the "Editorial Policy and Manuscript Preparation Guidelines" published each month in the Journal and posted on the A&WMA Web site (www.awma.org).