This report represents 2003 annual air quality information for all states in New England. The majority of the data, included in this report, were submitted to EPA by the states from their ambient monitoring networks in accordance with 40 CFR 58. The only data from industrial monitors, which have been included, are from the Massachusetts Industrial Network, EPA required networks in New Hampshire and Maine's licensing program. These industrial sites supplement the state networks. This report reflects the status of the AIRS database as of July 2004. The majority of data used have been evaluated and verified by EPA. However, for those monitors that appear to be violating an applicable ambient air quality standard, the data may require further evaluation by both EPA and the states. For the 8-hour ozone standard, EPA designated areas as attainment/non-attainment in April 2004 and for the PM2.5 standard, EPA has not yet designated areas as either attainment or non-attainment.