Escolania de Montserrat Escolania de Montserrat The Escolania de Montserrat, or simply the Escolania () is a boys' choir of sopranos and altos based at the Benedictine abbey Santa Maria de Montserrat near Barcelona, Catalonia, Spain. When the repertory requires it, they are accompanied by the Montserrat Chapel Choir, composed of old choirboys and the monks of the Ministry Chapel Choir. The Escolania of Montserrat, which belongs to the Monastery of Montserrat, is one of the oldest boys choirs in Europe. Records show that the Escolania has existed as a religious and musical institution since the 14th century. It is composed of more
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