Latex is a very broad term that just means and emulsion of micro polymers in water.

Some latex comes from plants and at worst will cause allergic reactions. The synthetic ones have a pretty wide range of uses and chemical make ups. A lot are marketed as harmless, but a lot were invented in the past 10 years and haven't been fully studied for potential long term effects. Some are known carcinogens, allergens and "forever" chemicals.

The specific chemicals involved in this spill are butyl acrylate, ethyl acrylate and methyl methacrylate, which are synthetic organic compounds that are used in latex paint.