Status of remediation of contaminated sites
All in all it is assumed that of the approximately 38,000 contaminated sites, around 4,000 represent a risk for human beings and the environment and therefore should be classified as contaminated. Work on decontaminating those sites that represent an acute risk for protected resources has meanwhile been initiated almost everywhere. The aim is for all ongoing studies to be concluded by 2025 and for the decontamination of all sites to be completed by 2040. This staggered approach ensures that significant environmental risks are eliminated quickly, without overextending the financial possibilities of the public purse or the involved private entities.
More than 1,300 contaminated sites – including major hazardous sites such as the landfills in Kölliken, Bonfol and Monthey (Pont Rouge landfill) – have already been remediated. However, there are still over 2,600 contaminated sites awaiting remediation. For that reason, the current state is assessed as medium. Every year new and sometimes very comprehensive remediation work is begun, thanks in part to the Confederation’s OCRCS subsidies. The trend is therefore considered positive.
- Related indicators
- VOC in groundwater
The remediated sites are also recorded within the framework of EIONET. It must be noted that in the different countries there are different legal situations for the remediation of contaminated sites and so also for the obligation to carry out remedial work. A slight trend can be seen however, in which for Switzerland the proportion of contaminated sites already remediated is high compared to the total number.
Statistical evaluation of the reports.
|Targeted trend||Initial value||Final value||Variation in %||Observed trend||Assessment|
|Growth||Average 2010-2012||Average 2016-2018||98.92%||Growth||positive|