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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
The map (left) indicates the sampling sites relevant to this paper, the diagram (top right) indicates where sensor systems were deployed at the Building Site, and the photos (bottom right) show the inside of a Y-Pod and a deployed Y-Pod.