Equipment for the control of anti-icing agent on the roads?

Question

Physics

Tell me what tool can automatically detect the presence of anti-icing agents (salt) and snow on the road?
For example, so that the processed areas are highlighted in the photo and the brightness decreases with a decrease in the number. Is a thermal imager suitable?
Other methods and ideas are possible. The requirement is accuracy and ease of use/maintenance. It will be used statically, i.e. stand in one place and collect information from a certain area (100 square meters).
What tools does NASA use to determine the composition of planetary surfaces?
Thanks in advance!

Answer 1

Some spectral equipment, like here , for example. You can also ask professors for advice there. Most likely, on some multispectral photos, the reagent will stand out.