| Change since | |
 |
1970 |
|
1990 |
|
1997 |
Coverage: United Kingdom
Source: Defra
- Between 1970 and 2001, sulphur dioxide emissions fell by 83 per cent and nitrogen oxides emissions by 33 per cent.
- Between 1998 and 2001, sulphur dioxide emissions fell by 30 per cent, and nitrogen oxides emissions by 12 per cent.