I hope she wins. It's not just marijuana. Perfumes and other chemicals have increased dramatically over the last 10 - 15 years. It has driven some people to suicide: https://www.ctvnews.ca/health/woman-with-chemical-sensitivit...
And in the case of marijuana this is easy to solve by the person smoking, eating or growing the pot. Keep your windows closed, do everything inside, and use an odor and chemical eliminating air purifier. They cost anywhere from a few dollars for the ones you directly exhale cigarette smoke into, to $100 or so for console purifiers, to $400 to a couple thousand for the full home purifiers which use pounds of activated carbon, zeolite, and various other minerals to eliminate multiple chemicals and odors. Plus money on an ongoing basis to change out the filters, though some of the filters allow cheaper exchange when done by the user.