Sensitivity map

Schools and hospitals most exposed to noise in Salvador

NBR 10151 sets 50 dB(A) by day and 45 at night as the reference for school and hospital areas, below the 55 dB(A) of residential areas. We scored 478 schools and 107 hospitals with a name in OpenStreetMap in Salvador, with the same model used for the neighbourhoods, at the point of each one.

schools

465 / 478

465 of 478 (97%) sit at points whose daytime estimate is above 50 dB(A); at night, 441 are above 45 dB(A). Average: 60.5 dB(A) by day.

hospitals

105 / 107

105 of 107 (98%) sit at points whose daytime estimate is above 50 dB(A); at night, 104 are above 45 dB(A). Average: 62.5 dB(A) by day.

The 30 most exposed schools

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
CEEP Severino Vieira	Nazaré	76	68	27	Avenida Joana Angélica (collector road, 0 m)
Escola Municipal Olga Figueredo de Andrade	Brotas	75	69	29	Avenida Mário Leal Ferreira (expressway, 17 m)
Escola Estadual Maria Amélia Santos		74	67	31	Rodovia BA-881 (arterial road, 7 m)
Maple Bear Canadian School		73	67	34	Estrada do Coco (expressway, 37 m)
COC Horto	Rio Vemelho	73	65	35	Avenida Anita Garibaldi (arterial road, 22 m)
Gregor Mendel Vestibular	Pituba	72	65	36	Avenida Manoel Dias da Silva (arterial road, 15 m)
Villa Global Education	Trobogy	72	66	37	Avenida Luís Viana Filho (expressway, 53 m)
Villa		72	66	37	Estrada do Coco (expressway, 45 m)
Colégio Estadual Marechal Mascarenhas de Morais	Itapuã	72	65	38	Avenida Dorival Caymmi (arterial road, 18 m)
Colégio Estadual Visconde de Mauá	São Cristóvão	71	64	39	Avenida São Cristóvão (arterial road, 22 m)
Colégio Municipal Barbosa Romeo	Jardim das Margaridas	71	64	39	Avenida São Cristóvão (arterial road, 27 m)
Colégio Integral	Costa Azul	71	64	40	Rua Fernando Menezes de Góes (arterial road, 29 m)
Escola Municipal Hospitalar e Domiciliar Irmã Dulce	Amaralina	71	64	40	Avenida Amaralina (arterial road, 17 m)
Colégio Aliança	Santo Agostinho	71	64	40	Avenida Mário Leal Ferreira (expressway, 71 m)
Colégio Estadual Castello Branco	Periperi	71	63	41	Rua Doutor Almeida (collector road, 5 m)
Casa 500	Parque Cruz Aguiar	71	63	41	Avenida Juracy Magalhães Júnior (collector road, 12 m)
Colégio Bunny	Pituba	70	63	41	Avenida Octávio Mangabeira (arterial road, 32 m)
Único Pré-Medicina Vestibular	Pituba	70	63	41	Avenida Manoel Dias da Silva (arterial road, 28 m)
Colégio Estadual Landulfo Alves	Calçada	70	63	42	Avenida Engenheiro Oscar Pontes (arterial road, 26 m)
Escola Casa Bom Viver	Amaralina	70	63	42	Avenida Manoel Dias da Silva (arterial road, 19 m)
Escola Municipal Maria Quitéria	Santo Agostinho	70	63	42	Ladeira dos Galés (collector road, 12 m)
Colégio Estadual de Nova Esperança	Nova Esperança	70	64	42	Estrada CIA Aeroporto (expressway, 68 m)
Nosso Mundo	Canela	70	62	43	Avenida Reitor Miguel Calmon - Vale do Canela (arterial road, 43 m)
Colégio Anchieta Patamares	Patamares	70	63	43	Avenida Professor Pinto de Aguiar (arterial road, 44 m)
Escola Municipal Oswaldo Cruz	Rio Vermelho	70	63	44	Rua Oswaldo Cruz (arterial road, 23 m)
Escola Municipal Senhora Santana	Rio Vemelho	70	62	43	Rua Conselheiro Pedro Luiz (collector road, 15 m)
Escola D. Avelar Brandao Vilela	IAPI	69	61	44	Rua Mello Moraes Filho (collector road, 7 m)
CETEC		69	64	44	Avenida Ruy Barbosa (collector road, 18 m)
Instituto Municipal de Educação Professor José Arapiraca	Boca do Rio	69	62	45	Avenida Octávio Mangabeira (arterial road, 33 m)
Colégio Emmanuel Kant	Vila IAPI	69	61	46	Rua Conde de Porto Alegre (collector road, 11 m)

The 30 most exposed hospitals

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
COF	Aeroporto	74	68	33	Avenida Santos Dumont (expressway, 20 m)
Day Hospital San Miguel	Pituba	71	64	39	Avenida Antônio Carlos Magalhães (arterial road, 23 m)
UPA Mar Grande		71	64	40	BA-532 (arterial road, 16 m)
USF Centro		71	64	40	Avenida Santo Antônio dos Navegantes (arterial road, 15 m)
Hospital Geral Menandro de Faria		71	65	40	Estrada do Coco (expressway, 41 m)
Bom Viver	Rio Vermelho	71	66	41	Rua Conselheiro Pedro Luiz (collector road, 16 m)
MaterDei	Rio Vemelho	70	63	41	Avenida Vasco da Gama (arterial road, 53 m)
Hospital João Batista Caribé	Coutos	70	63	41	Avenida Afrânio Peixoto (arterial road, 26 m)
Hospital Aeroporto	Aeroporto	70	64	42	Avenida Santos Dumont (expressway, 78 m)
Maternidade Maria da Conceição de Jesus	Coutos	69	62	44	Avenida Afrânio Peixoto (arterial road, 31 m)
Ambulatório Prof. Silva Lima, M.D. \| ASL \| Hospital Santa Izabel \| HSI \| SUS	Saúde	69	62	44	Avenida Presidente Castelo Branco (arterial road, 81 m)
Nuclear Núcleo de Assistência ao Paciente Reumático	Federação	69	62	44	Avenida Anita Garibaldi (arterial road, 30 m)
Somed	Nordeste de Amaralina	69	62	45	Avenida Manoel Dias da Silva (arterial road, 32 m)
Hospital Naval de Salvador	Santo Antônio	68	61	46	Avenida da França (arterial road, 70 m)
Day Hospital	Caminho das Árvores	68	61	47	Rua Alceu Amoroso Lima (collector road, 16 m)
Hospital Professor Carvalho Luz	Saúde	68	61	48	Avenida Presidente Castelo Branco (arterial road, 76 m)
Hapvida	Cajazeiras	68	60	48	Estrada do Coqueiro Grande (collector road, 10 m)
IBIT - Fundação José Silveira	Alto das Pombas	68	61	48	Avenida Centenário (arterial road, 98 m)
Hospital da Bahia	Loteamento Aquarius	68	60	49	Avenida Professor Magalhães Neto (arterial road, 57 m)
Sermeca	Horto Bela Vista	68	60	48	Rua Thomaz Gonzaga (collector road, 24 m)
Consultórios Especializados \| Otorrinolaringologia, Ortopedia \| Hospital Santa Izabel \| HSI \| Santa Casa De Misericórdia Da Bahia	Saúde	67	60	49	Avenida Presidente Castelo Branco (arterial road, 98 m)
Consultórios Especializados \| Otorrinolaringologia, Ortopedia \| Hospital Santa Izabel \| HSI	Saúde	67	60	50	Avenida Presidente Castelo Branco (arterial road, 100 m)
Posto de Saúde São Gonçalo	Federação	67	59	50	Avenida Cardeal da Silva (collector road, 13 m)
Hospital Santo Amaro	Alto das Pombas	67	60	50	Avenida Centenário (arterial road, 77 m)
HJV	Rio Vemelho	67	60	50	Avenida Anita Garibaldi (arterial road, 50 m)
Instituto Baiano Do Câncer \| IBC \| CancerCenter Oncoclínicas \| Hospital Santa Izabel \| HSI	Saúde	67	60	50	Avenida Presidente Castelo Branco (arterial road, 124 m)
UPA San Martin	Santa Mônica	67	60	51	Avenida General San Martin (arterial road, 51 m)
Ambulatório Prof. Francisco De Magalhães Neto, M.D. \| AMN \| HUPES \| EBSERH \| FAMEB \| UFBA ꎺ \| SUS	Canela	66	59	52	Avenida Reitor Miguel Calmon - Vale do Canela (arterial road, 83 m)
Multimais Santa Terezinha	Condomínio Stella Maris	66	59	52	Rua Capitão Melo (collector road, 19 m)
Instituto de Organização Neurológica da Bahia	Jardim Apipema	66	58	53	Rua Professor Sabino Silva (collector road, 21 m)

An estimate at the map point, not a measurement. Buildings, walls and inner courtyards can cut the noise inside a school or hospital a lot. The list points to where measuring is worthwhile.

Noise map of Salvador

How to read this index

The Sossego Index runs from 0 to 100 and is an estimate built from open data, not an on-site measurement. 100 means 48 dB(A) or less, the level of a calm residential area. 0 means 86 dB(A) or more, the level of a heavy traffic avenue. Each neighbourhood's value is the median of nine points around its centre.

Read the full methodology

OpenStreetMap data, computed on October 21, 2026.