Deprecated: Return type of YDataTable::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/bdavid/prod/georef/yamldoc/ydclasses/ydata.inc.php on line 428

Deprecated: Return type of YamlDataTable::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/bdavid/prod/georef/yamldoc/ydclasses/yamldata.inc.php on line 295
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inScheme:
  - 100141
  - 100242
prefLabel:
  en: 'prevention of pollution'
  fr: 'prévention de la pollution'
broader:
  - 1707
narrower:
  - 5593
  - 4891
related:
  - 2524
notation:
  - 2611