The indicator refers to the number of parties (=countries that have ratified, accepted, approved or accessed), to the Stockholm Convention on Persistent Organic Pollutants (Stockholm Convention);
Data for this indicator has been provided by the Stockholm Convention.
Metadata: https://environmentlive.unep.org/indicator/index/12_4_1, https://unstats.un.org/sdgs/metadata/files/Metadata-12-04-01.pdf