|
Table 1.10 Analysis of SO2 Trends
| Analysis of SO2 trends over all the available
sites |
| Dominant land-use
types | Trend | Sulphur dioxide | | | | |
| | | Increase | No change | Decrease | Insufficient
data | Total sites |
| Industrial (I) | Long | 2 | 13 | 10 | 2 | 27 |
| Commercial (C) | Long | 0 | 12 | 5 | 1 | 18 |
| Residential (R) | Long | 3 | 19 | 9 | 18 | 49 |
| Total | Long | 5 | 44 | 24 | 21 | 94 |
| I | = | Significant linear
increase | | | | |
| D | = | Significant linear
decrease | | | | |
| O | = | No significant
change | | | | |
| */- | = | Insufficient data for
calculations | | | | |
| | | SO2 | | | | |
| | | I | O | D | */- | Total sites |
| Industrial (I) | Short | 3 | 55 | 3 | 16 | 27 |
| Commercial (C) | Short | 3 | 5 | 1 | 9 | 18 |
| Residential (R) | Short | 7 | 9 | 3 | 30 | 49 |
| Total | Short | 13 | 19 | 7 | 55 | 94 |
Copyright © 1999 Department of Environmental
Affairs and Tourism. All Rights Reserved.
Site maintained by the Directorate Environmental Information and Reporting
Last update: October 1999
|
|
