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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: Inhal Toxicol. 2015 Oct 8;27(13):673–681. doi: 10.3109/08958378.2015.1092185

Figure 1.

Figure 1

PM2.5 mass across sampling sites. Ambient mass, mass following removal from filter via sonication (“removed”), and mass following re-suspension in cell culture media (“extracted”) are displayed for each sampling location in micrograms (n=2/site for ambient and removed samples – except for site 4 (n=1) due to equipment failure during collection and n=1/site for extracted samples). Sampling sites are ordered from lowest to highest (1–5) ambient PM2.5 mass. Data are expressed as means±SD.