prev next front |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |32 |33 |34 |35 |review
After the last major episode actions were performed to improve air quality in most of the developed countries.

British Parliament enacted the Clean Air Act in 1956, effectively reducing the burning of coal. It was the beginning of serious air-pollution reform in England.

As a consequence, levels of ‘classical’ air pollution decreased in the most poluted places.