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how much sf6 mix Treatment in Denmark

how much sf6 mix Treatment in Denmark

Measurements of SF 6 show that its global average mixing ratio has increased from a steady base of about 54 parts per quadrillion prior to industrialization, to over 10 parts per trillion (ppt) as of April 2020, and is increasing by about 0.35 ppt (3.5 percent) per year.

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