{"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": ["GHA"], "observations": [{"country": "GHA", "date": 2010, "value": 26.371447386165}, {"country": "GHA", "date": 2011, "value": 30.3930045479609}, {"country": "GHA", "date": 2012, "value": 29.0418637003495}, {"country": "GHA", "date": 2013, "value": 24.2061546021841}, {"country": "GHA", "date": 2014, "value": 23.6327809168327}, {"country": "GHA", "date": 2015, "value": 33.8697351229232}, {"country": "GHA", "date": 2016, "value": 31.3095383111133}, {"country": "GHA", "date": 2017, "value": 29.3568301115867}, {"country": "GHA", "date": 2018, "value": 25.8232291377847}, {"country": "GHA", "date": 2019, "value": 25.0476126459012}, {"country": "GHA", "date": 2020, "value": 30.1543666247493}, {"country": "GHA", "date": 2021, "value": 29.2960702713952}, {"country": "GHA", "date": 2022, "value": 30.0880306483719}, {"country": "GHA", "date": 2023, "value": 28.143601284493}, {"country": "GHA", "date": 2024, "value": null}, {"country": "GHA", "date": 2025, "value": null}], "provenance": {"retrieved_at": "2026-10-06T09:17:48.414921+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": []}