tom rivard, department of public health. this morning we are asking you to allow the department to except funding from barrier air quality management district for the purpose of developing the modeling aspect of a community risk reduction plan for san francisco. the money will specifically be used to develop exposure condors for all of san francisco around a variety of mobile and point source of air quality emission sources, and to integrate that into an analysis of potential health risks, health outcomes, specifically try to identify areas where we would consider hot spots, areas within a community that would be considered hot spots, where we could craft mitigation or strategies to improve the air quality exposures for existing population as well as protect new residents in newly developed communities, newly developed residential facilities throughout san francisco. this process is part of the air district's more recent air quality guidelines and air quality threshold that were released earlier in the year. it is more of a