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. Author manuscript; available in PMC: 2023 May 1.
Published in final edited form as: J Environ Sci (China). 2021 Aug 22;115:350–362. doi: 10.1016/j.jes.2021.08.004

Figure 1. Map of sampling locations in the Houston Ship Channel/Galveston bay (HSC/GB) near the ITC fire site and example two-dimensional IMS-MS spectra from surface water samples collected April 2019.

Figure 1.

(a) Area of detail magnified in the map is indicated in the inset (bottom left panel). A series of surface water samples (blue pins) were collected between April 12 and August 2, 2019 from shore-access locations or open water (SCW). The number in brackets beneath each sampling location indicates the distance (negative values represent up-stream locations) from ITC fire location (indicated by a fire symbol). Background map and inset map are from ESRI/OpenStreetMap. (b) The summed IMS-MS nested spectra for a procedural blank (left) and the two representative water samples collected April 2019 from various locations (as shown in the title of each plot) with m/z shown on the x-axis and IMS drift time shown on the y-axis.