Traffic
Every road gets an emission level by type, from motorways to residential streets. Sound decays with distance like a line source.
How the score is computed
A simplified acoustic model applied to open data. Transparent and verifiable.
Airports
Runways of nearby airports count as long-range sources, with more weight for international airports.
Local sources
Railways, industrial zones, stadiums, bars and nightclubs add to the background noise of the area.
Noise by city and neighbourhood
The Sossego Index of every neighbourhood in the 27 state capitals and in the cities above 200 thousand inhabitants, from the quietest to the loudest.
- 1.Porto VelhoRO · 94 neighbourhoods85
- 2.Rio BrancoAC · 129 neighbourhoods85
- 3.BelémPA · 130 neighbourhoods81
- 4.CuiabáMT · 265 neighbourhoods81
- 5.MaceióAL · 68 neighbourhoods81
- 6.FlorianópolisSC · 232 neighbourhoods80
- 7.PalmasTO · 17 neighbourhoods80
- 8.MacapáAP · 65 neighbourhoods79
- 9.TeresinaPI · 454 neighbourhoods79
- 10.ManausAM · 67 neighbourhoods78
- 11.Campo GrandeMS · 709 neighbourhoods77
- 12.Porto AlegreRS · 296 neighbourhoods77
- 13.BrasíliaDF · 483 neighbourhoods76
- 14.GoiâniaGO · 419 neighbourhoods76
- 15.Boa VistaRR · 70 neighbourhoods74
- 16.João PessoaPB · 71 neighbourhoods74
- 17.VitóriaES · 80 neighbourhoods74
- 18.CuritibaPR · 88 neighbourhoods72
- 19.São LuísMA · 323 neighbourhoods72
- 20.São PauloSP · 452 neighbourhoods72
- 21.AracajuSE · 55 neighbourhoods71
- 22.FortalezaCE · 150 neighbourhoods71
- 23.Rio de JaneiroRJ · 295 neighbourhoods71
- 24.SalvadorBA · 155 neighbourhoods71
- 25.NatalRN · 147 neighbourhoods70
- 26.Belo HorizonteMG · 486 neighbourhoods69
- 27.RecifePE · 139 neighbourhoods69
Other cities above 200 thousand inhabitants
- Águas Lindas de GoiásGO95
- AmericanaSP74
- AnanindeuaPA76
- AnápolisGO75
- Aparecida de GoiâniaGO82
- AraçatubaSP84
- ArapiracaAL76
- AraraquaraSP81
- BarueriSP69
- BauruSP76
- Belford RoxoRJ83
- BetimMG79
- BlumenauSC83
- Cabo de Santo AgostinhoPE77
- Cabo FrioRJ88
- CamaçariBA80
- Campina GrandePB72
- CampinasSP71
- Campos dos GoytacazesRJ81
- CanoasRS72
- CarapicuíbaSP76
- CariacicaES83
- CaruaruPE79
- CascavelPR79
- CastanhalPA84
- CaucaiaCE84
- Caxias do SulRS85
- ChapecóSC85
- ColomboPR89
- ContagemMG76
- CotiaSP85
- CriciúmaSC84
- DiademaSP68
- DivinópolisMG85
- DouradosMS85
- Duque de CaxiasRJ79
- Embu das ArtesSP77
- Feira de SantanaBA76
- Foz do IguaçuPR80
- FrancaSP74
- Governador ValadaresMG68
- GravataíRS76
- GuarujáSP75
- GuarulhosSP75
- HortolândiaSP74
- ImperatrizMA81
- IndaiatubaSP72
- IpatingaMG81
- ItaboraíRJ91
- ItajaíSC85
- ItapeviSP79
- ItaquaquecetubaSP79
- Jaboatão dos GuararapesPE85
- JacareíSP76
- JoinvilleSC78
- JuazeiroBA80
- Juazeiro do NorteCE69
- Juiz de ForaMG82
- JundiaíSP73
- Lauro de FreitasBA77
- LimeiraSP76
- LondrinaPR76
- LuziâniaGO81
- MacaéRJ81
- MagéRJ83
- MarabáPA71
- MaracanaúCE82
- MaricáRJ88
- MaríliaSP77
- MaringáPR72
- MauáSP74
- Mogi das CruzesSP79
- Montes ClarosMG74
- MossoróRN78
- NiteróiRJ84
- Nossa Senhora do SocorroSE85
- Nova FriburgoRJ94
- Nova IguaçuRJ83
- Novo HamburgoRS76
- OlindaPE76
- OsascoSP71
- PalhoçaSC82
- ParauapebasPA81
- ParnamirimRN79
- Passo FundoRS77
- PaulistaPE83
- PelotasRS79
- PetrolinaPE76
- PetrópolisRJ90
- PiracicabaSP81
- Ponta GrossaPR78
- Praia GrandeSP82
- Presidente PrudenteSP82
- Ribeirão das NevesMG85
- Ribeirão PretoSP74
- Rio ClaroSP78
- Rio VerdeGO77
- RondonópolisMT83
- Santa LuziaMG79
- Santa MariaRS80
- SantarémPA77
- Santo AndréSP71
- SantosSP67
- São Bernardo do CampoSP69
- São CarlosSP75
- São GonçaloRJ83
- São João de MeritiRJ69
- São JoséSC74
- São José de RibamarMA83
- São José do Rio PretoSP75
- São José dos CamposSP72
- São José dos PinhaisPR81
- São LeopoldoRS78
- São VicenteSP81
- SerraES82
- Sete LagoasMG81
- SinopMT86
- SobralCE74
- SorocabaSP75
- SumaréSP78
- SuzanoSP84
- Taboão da SerraSP73
- TaubatéSP75
- UberabaMG73
- UberlândiaMG78
- Valparaíso de GoiásGO82
- Várzea GrandeMT77
- ViamãoRS86
- Vila VelhaES77
- Vitória da ConquistaBA74
- Volta RedondaRJ84