Barcelona (Freddie Mercury and Montserrat Caballé song) Barcelona (Freddie Mercury and Montserrat Caballé song) "Barcelona" is a single released by Queen vocalist Freddie Mercury and operatic soprano Montserrat Caballé. A part of their collaborative album "Barcelona", it also appeared on Queen's "Greatest Hits III". The song reflects Mercury's love of opera with his high notes and Caballé's operatic vocals, backed by a full orchestra. Originally released in 1987, it was one of the biggest hits of Mercury's solo career, reaching number eight in the UK Singles Chart. After Mercury's death in 1991, it was featured at the 1992 Summer Olympics, after which the track climbed even higher,
Mercury in fish regulations governing the mercury content of a variety of materials. Regulation of these potential sources of pollution reduces the amount of mercury that ends up in fish and, through biomagnification, in humans. In addition to enacting legislation controlling the mercury levels in potential pollutants, Japan has directly influenced the environment by issuing regulations setting acceptable levels of environmental mercury pollution. It is Japan's goal to promote international mercury legislation in hopes of preventing any country from experiencing what it did. Despite Japan's extensive regulation and experience with mercury-based disasters, there is still little information provided to the public. The Japanese