Sensitivity map

Schools and hospitals most exposed to noise in Canoas

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 242 schools and 17 hospitals with a name in OpenStreetMap in Canoas, with the same model used for the neighbourhoods, at the point of each one.

schools

235 / 242

235 of 242 (97%) sit at points whose daytime estimate is above 50 dB(A); at night, 224 are above 45 dB(A). Average: 61 dB(A) by day.

hospitals

17 / 17

17 of 17 (100%) sit at points whose daytime estimate is above 50 dB(A); at night, 17 are above 45 dB(A). Average: 63 dB(A) by day.

The 30 most exposed schools

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
Escola de Educação Profissional Doutor Bernardino	Fátima	76	69	27	Rodovia BR-116 (motorway, 50 m)
Colégio Nave	Centro	75	69	28	Avenida Inconfidência (arterial road, 8 m)
Escola Ensino Médio Ministro Rubem Carlos Ludwig	Fátima	75	69	28	Rodovia BR-116 (motorway, 50 m)
Escola Ernesto Tocchetto		75	68	30	Avenida Sertório (arterial road, 26 m)
Escola Municipal de Educação Infantil ABRASCE Ilha do Pavão		73	67	35	Travessia Régis Bitencourt (motorway, 62 m)
QI - Escolas e Faculdades	Centro	72	67	36	Viaduto da Avenida Boqueirão (motorway, 95 m)
EMEF Ícaro	Fátima	72	66	37	Rodovia BR-116 (motorway, 90 m)
Escola Ensino Médio O Acadêmico	Centro	71	65	38	Avenida Inconfidência (arterial road, 25 m)
Escola Estadual de Ensino Médio João XXIII	Niterói	71	65	40	Rua Santos Dumont (main local road, 52 m)
Feliz Idade Recreação e Educação Infantil	Niterói	70	63	42	Rua Venâncio Aires (collector road, 10 m)
Associação Educacional Por Amor	Centro	70	63	42	Avenida Guilherme Schell (collector road, 13 m)
Escola Alvarenga Peixoto		70	64	43	Travessia Régis Bitencourt (motorway, 103 m)
Escola Oscar Schimit		70	64	43	Travessia Régis Bitencourt (motorway, 96 m)
Kaiser Escola Infantil Ltda	Centro	69	63	44	Rodovia BR-116 (motorway, 145 m)
Colégio Luterano Concórdia	Niterói	69	62	44	Rua Venâncio Aires (collector road, 14 m)
Escola Estadual Ensino Fundamental Padre Jaeger	Marechal Rondon	69	63	45	Viaduto da Avenida Boqueirão (motorway, 125 m)
E.M.E.I. Beija-Flor	Niterói	69	63	45	Rodovia BR-116 (motorway, 171 m)
EMEI Gilda Schiavon	Rio Branco	69	62	46	Rodovia Doutor Fábio André Koff (motorway, 136 m)
Associação Cultural Beneficente Jardim de Infância Pinóquio	Rio Branco	68	61	47	Rua Cairú (collector road, 19 m)
Colégio Rui Barbosa	Niterói	68	61	47	Rodovia BR-116 (motorway, 232 m)
Maternal e Recreação Criança Esperança	Centro	68	61	48	Avenida Guilherme Schell (collector road, 23 m)
Centro Municipal de Educação Básica Vitorina Fabre		68	60	49	Avenida Senador Salgado Filho (collector road, 22 m)
Associação Educacional Geração Vida - Unidade Centro	Centro	67	60	49	Rua Domingos Martins (collector road, 16 m)
EMEF Theodoro Bogen	Niterói	67	61	49	Rua Farroupilha (main local road, 147 m)
Esc Ens Fun São José	Niterói	67	60	49	Rua Iraí (collector road, 16 m)
Escola Estadual Frederico A. Ritter	Planalto Canoense	67	61	49	Avenida Frederico Augusto Ritter (arterial road, 29 m)
Escolinha Infantil Paraíso da Criança	Igara	67	59	49	Avenida Boqueirão (collector road, 17 m)
Escola Lions Club Porto Alegre Farrapos		67	61	49	Avenida Ernesto Neugebauer (collector road, 35 m)
Centro Educacional Geração Vida - Unidade Estancia Velha	Estância Velha	67	61	49	Avenida Santos Ferreira (arterial road, 49 m)
EMEF José Plácido de Castro		67	61	50	Rodovia Mário Quintana (expressway, 129 m)

The 17 most exposed hospitals

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
UPA 24h		72	66	37	Rodovia Mário Quintana (expressway, 61 m)
COT-Clínica Ortopedia e Traumatologia	Centro	69	63	44	Avenida Vitor Barreto (collector road, 22 m)
Hospital Nossa Senhora das Graças	Marechal Rondon	67	60	50	Avenida Santos Ferreira (arterial road, 60 m)
Unimed	Igara	67	59	50	Avenida Boqueirão (collector road, 20 m)
HPSC	Mathias Velho	67	59	51	Rua Florianópolis (collector road, 13 m)
Ambulatório	São José	65	57	55	Avenida Farroupilha (collector road, 26 m)
UPA12H Idoso	Centro	65	58	55	Avenida Guilherme Schell (collector road, 42 m)
Unidade de Pronto Atendimento Carlos Loureno Giacomazzi	Estância Velha	64	57	57	Avenida Boqueirão (collector road, 33 m)
UPA24H Rio Branco	Rio Branco	64	57	58	Rua Cairú (collector road, 40 m)
UPA 24h Cachoeirinha		64	56	59	Avenida Capitão Garibaldi Pinto dos Santos (collector road, 37 m)
UPA16h Nitéroi	Niterói	63	56	62	Rodovia BR-116 (motorway, 559 m)
Hospital Universitário de Canoas	São José	60	52	69	Avenida Farroupilha (collector road, 75 m)
Hospital Pronto Socorro de Canoas	Mathias Velho	59	51	71	Rua Florianópolis (collector road, 67 m)
Hospital da Aeronáutica de Canoas - HACO	Vila República	59	53	71	Rodovia BR-116 (motorway, 505 m)
Hospital Padre Jeremias		57	50	75	Avenida General Flores da Cunha (arterial road, 315 m)
São Camilo		55	48	81	Rodovia Mário Quintana (expressway, 436 m)
UPA Caçapava	Mathias Velho	55	47	82	Rua República (collector road, 267 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 Canoas

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.