Dataset - CKAN MobiDataLab

Bottom - address location

Map layer with suspicious activity. These are former business activities from, among other things, Hinderwet dossiers, damping/elevation, tanks and business activities.
Soil - HBB BSB business activities

Map layer with business activities known to the foundation BSB. (Soil remediation industrial sites = canceled)

You can also access this registry using the API (see API Docs).