The chemical industry is pretty much self regulating, and you should request testing information on any product that is claimed to be environmentally safe. Remember, the government holds you responsible for hazardous clean up, not your chemical supplier. No matter what is claimed by them , you are responsible. The branch of the government that regulates and evaluates the impact of chemicals and compounds on the environment. Exhaustion is different for different colors and should be considered when a new process is developed and adjusted for.
Colors exhaust on an uneven curve according to the electrolyte content of the dyebath.
When a fabric sample is submitted to this light, it fades as though it was aged in sunlight. After a preset time the fabric is removed and evaluated by industry standards as to it's colorants' light fastness. The degree of flammability is stated in the MSDS or HMIS sheet that accompanies the product. There are only three truly fluorescent colors. They are Pink, Yellow, and Orange.