Table 25.2 - Alpine tourism's contribution to polluting emissions in Switzerland, 1987
Source: Partsch, 1991
| Tonnes per year | Tourist traffic (tonnes/year)* | Central heating: hotels and second homes (tonnes/year) | Contribution of tourist traffic and central heating to Swiss total (%) |
|---|---|---|---|
| Sulphur dioxide | 600 | 800 | 1 |
| Nitrogen oxides | 38 000 | 600 | 18 |
| Hydrocarbons | 24 000 | 500 | 7 |
| Carbon monoxide | 136 000 | 7000 | 23 |
| Soot | 50 | 100 | 1 |
| Lead | 160 | | 24 |
Note: * Excluding public transport and air arrivals.