Fluoride is known to leach lead from brass fittings. The public should be aware of this especially infants, bottle-fed with fluoridated water.
The following research articles demonstrate this:
Maas RP, et al. (2007). Effects of fluoridation and disinfection agent combinations on lead leaching from leaded-brass parts. Neurotoxicology 28(5):1023-34
Coplan MJ, et al. (2007). Confirmation of and explanations for elevated blood lead and other disorders in children exposed to water disinfection and fluoridation chemicals. Neurotoxicology 28(5):1032-42
Leite GA, et al. (2011). Exposure to lead exacerbates dental fluorosis. Archives of Oral Biology 56(7):695-702.
Masters R, et al. (2000). Association of silicofluoride treated water with elevated blood lead. Neurotoxicology. 21: 1091-1099.
Masters RD, Coplan M. (1999). Water treatment with silicofluorides and lead toxicity. International Journal of Environmental Studies.56: 435-449.
Niu R, et al. (2009). Decreased learning ability and low hippocampus glutamate in offspring rats exposed to fluoride and lead. Environmental Toxicology & Pharmacology28(2):254-8.
Sawan RM, et al. (2010). Fluoride increases lead concentrations in whole blood and in calcified tissues from lead-exposed rats. Toxicology 271(1-2):21-6.