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. Author manuscript; available in PMC: 2017 Oct 21.
Published in final edited form as: Environ Sci Technol. 2016 Aug 4;50(16):8514–8521. doi: 10.1021/acs.est.6b01815

Figure 2.

Figure 2

Hourly average baseline PNC roses (normalized to the maximum) for the three monitoring sites. Typical trajectories for frequently used runways for landings are shown in green, and takeoffs are shown in tan. Base layers for the map were obtained from mass.gov.