90731100 - Air quality management

CPV code 90731100 in the EU Common Procurement Vocabulary refers to Air quality management. It sits at level 5 of the CPV hierarchy as a subcategory within the 90 division. This code is nested directly under 90731000, narrowing the broader category into the specific area of air quality management. As a leaf code, 90731100 has no further subdivisions and represents the most precise classification available in this branch — buyers should reference it directly in tender notices when the procurement primarily concerns air quality management. Contracting authorities across the EU use 90731100 in TED notices and national procurement portals to signal that a tender relates to air quality management.