К настоящему времени в ряде районов Европы выбросы в атмосферу SO2 антропогенного происхождения, вызывающие кислотные осадки, сократились почти на 70 процентов по сравнению с их максимальными значениями в прошлые годы (EEA 2001).

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In some parts of Europe, the anthropogenic SO2 emissions which lead to acid precipitation have been reduced by nearly 70 per cent from their maximum values (EEA 2001); there have also been reductions of some 40 per cent in the United States (US EPA 2000).