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classicrock40 t1_j1wshuh wrote on December 27, 2022 at 11:52 PM

My guess is that extra was used this time because of the rain/snow/wind/icing potential and they wanted to really make sure the roads were passable. It's like that way over in Nashua and surrounding areas too. Agreed on the salt impact, but I have no idea on the effectiveness of the alternatives.

Dr_ThunderMD OP t1_j1wyrtf wrote on December 28, 2022 at 12:38 AM

I found a report comparing salt to an alternative, calcium magnesium acetate.

https://nap.nationalacademies.org/catalog/11405/highway-deicing-comparing-salt-and-calcium-magnesium-acetate-comparing-salt

classicrock40 t1_j1x1ery wrote on December 28, 2022 at 12:58 AM

maybe you can tldr, because I'm not creating an account just to read it.