187004 Assessing the impact of increased traffic-related air pollution associated with a proposed development in a densely populated urban area

Monday, October 27, 2008

Taeko Minegishi , Advanced Analytics, Environmental Health and Engineering, Inc., Needham, MA
Matthew Kaufman , Advanced Analytics, Environmental Health and Engineering, Inc., Needham, MA
Joseph Allen , Advanced Analytics, Environmental Health and Engineering, Inc., Needham, MA
David MacIntosh , Advanced Analytics, Environmental Health and Engineering, Inc., Needham, MA
Proposed development plans for Assembly Square in Somerville, Massachusetts, the most densely populated city in New England (5th in the U.S.), have the potential to further increase traffic related air pollution in this community. The development is adjacent to a portion of I-93 with the highest traffic volumes in Massachusetts (143,000 vehicles per day), with post-construction traffic counts projected to increase by an additional 24,000 vehicles per day. Examining the implications of commercial development and the impact on the local community is a public health priority, particularly in diverse communities like Somerville where approximately 30% of the Somerville residents are foreign born and 4,000 residents live within 200m of I-93. To assess the impact of traffic related pollution to residents nearby I-93, 40 passive diffusion tubes were deployed within 500m of I-93 to measure the averaged NO2 concentration over 2 weeks in October and November, 2007. NO2 has been shown to be a reliable surrogate for traffic-related air pollution. Preliminary results show samples collected adjacent to I-93 (<30m) have approximately 10 50% higher NO2 concentration than samples collected 100m away from the highway. Projected traffic counts after development indicate that air pollution may increase by 20% in the most affected communities. Additional analyses are being conducted to further examine if socio-economic status is associated with NO2 concentrations.

Learning Objectives:
1. Association between traffic related air pollution and social economic status 2. Recognize the social issues related to traffic pollution. 3. Understand the association between traffic related air pollution in a particular demographic in Somerville, MA.

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I have completed my masters thesis and have presented in other conferences, such as SETAC and AAAR meetings.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.