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I'm glad you are considering extending / enlarging the study to include more sites. Ideally, monitoring stations along the entire route are desirable. This would also help detect changes in quantity and particulate size and composition relative to the distance that the trains have traveled. One question I'm wondering about is the extent to which the data can be used to calculate quantities (as opposed to just qualities) of any emissions.
May 31, 2013
Do coal and diesel trains make for unhealthy air?
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