My email to Ms. Lisa Jackson provides the update
I heard back from the North Carolina DNER and they said they have contacted Apple to find out what chemicals are in the Desulfurization Bed Canisters. I also asked them to investigate the chemicals in the spent fuel cell stacks that require periodic replacement. I am very hopeful that Apple will disclose this so we solve the mystery of what Bloom creates and removes as far as solid waste from their fuel cells. I am certain that Apple also wishes to know what wastes are being created in your facility.
Lindsay Leveen The Green Machine