Fig. 3

The source-specific probabilistic contamination level of HMs in park dust [the figure was generated by Huaming Du using the ArcGIS 10.3 (https://developers.arcgis.com/)].
The source-specific probabilistic contamination level of HMs in park dust [the figure was generated by Huaming Du using the ArcGIS 10.3 (https://developers.arcgis.com/)].