Montserrat island "Santa María de Montserrate", after the Virgin of Montserrat in the Monastery of Montserrat, on Montserrat mountain, near Barcelona in Catalonia, Spain. "Montserrat" means "serrated mountain" in Catalan. Archaeological field work in 2012, in Montserrat's Centre Hills indicated there was an Archaic (pre-Arawak) occupation between 4000 and 2500 BP. Later coastal sites show the presence of the Saladoid culture. In November 1493, Christopher Columbus passed Montserrat in his second voyage, after being told that the island was unoccupied due to raids by the Caribs. A number of Irishmen settled in Montserrat in 1632. The preponderance of Irish in the
Mercury in fish plant emissions. Chlorine chemical plants use mercury to extract chlorine from salt, which in many parts of the world is discharged as mercury compounds in waste water, though this process has been largely replaced by the more economically viable membrane cell process, which does not use mercury. Coal contains mercury as a natural contaminant. When it is fired for electricity generation, the mercury is released as smoke into the atmosphere. Most of this mercury pollution can be eliminated if pollution-control devices are installed. Mercury in the United States frequently comes from power plants, which release about 50% of the nation's