{"indicator": {"code": "ENV.PM25", "name": "Pollution de l'air (PM2,5)", "unit": "Nombre"}, "source": {"name": "World Bank", "producer": "Banque mondiale", "url": "https://data.worldbank.org", "license": "CC BY 4.0", "license_url": "https://datacatalog.worldbank.org/public-licenses"}, "countries": ["MRT"], "observations": [{"country": "MRT", "date": 2010, "value": 47.6054460100313}, {"country": "MRT", "date": 2011, "value": 49.0196495739197}, {"country": "MRT", "date": 2012, "value": 54.1025855948907}, {"country": "MRT", "date": 2013, "value": 42.7823277974338}, {"country": "MRT", "date": 2014, "value": 43.9453314705486}, {"country": "MRT", "date": 2015, "value": 53.0162862976192}, {"country": "MRT", "date": 2016, "value": 47.9118927509658}, {"country": "MRT", "date": 2017, "value": 50.4527713237389}, {"country": "MRT", "date": 2018, "value": 46.4676065172414}, {"country": "MRT", "date": 2019, "value": 43.6914963916805}, {"country": "MRT", "date": 2020, "value": 45.4453206008517}, {"country": "MRT", "date": 2021, "value": 48.987965577262}, {"country": "MRT", "date": 2022, "value": 45.0399461631116}, {"country": "MRT", "date": 2023, "value": 46.5013986975929}, {"country": "MRT", "date": 2024, "value": null}, {"country": "MRT", "date": 2025, "value": null}], "provenance": {"retrieved_at": "2026-10-07T13:15:54.480946+00:00", "methodology": "µg/m³, exposition moyenne annuelle.", "attribution": "Source : Banque mondiale. Données consultées via BNTIC FasoData.", "note": "BNTIC n'est pas producteur de ces statistiques."}, "meta": {"start": 2010, "end": 2026, "cache_ttl": 43200}, "warnings": []}