Sensitivity map

Schools and hospitals most exposed to noise in Blumenau

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 134 schools and 11 hospitals with a name in OpenStreetMap in Blumenau, with the same model used for the neighbourhoods, at the point of each one.

schools

110 / 134

110 of 134 (82%) sit at points whose daytime estimate is above 50 dB(A); at night, 91 are above 45 dB(A). Average: 57.2 dB(A) by day.

hospitals

11 / 11

11 of 11 (100%) sit at points whose daytime estimate is above 50 dB(A); at night, 11 are above 45 dB(A). Average: 61 dB(A) by day.

The 30 most exposed schools

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
Centro Municipal de Educação Alternativa	Victor Konder	74	67	32	Rua Humberto de Campos (arterial road, 12 m)
Pontinho Estudantil	Centro	73	66	35	Rua Uruguai (arterial road, 15 m)
Cooepe		71	64	38	Rua Heinrich Passold (arterial road, 16 m)
Start Anglo Blumenau	Victor Konder	69	62	46	Rua Antônio da Veiga (arterial road, 37 m)
Escola Municipal Raulino Horn		68	61	47	Rua Presidente Costa e Silva (arterial road, 25 m)
Colégio Sinodal Doutor Blumenau		68	61	48	Rua XV de Novembro (arterial road, 38 m)
Escola de Educação Básica Professor Heriberto Joseph Muller	Fortaleza	68	61	48	Via Expressa Paul Fritz Kuehnrich (arterial road, 67 m)
Colégio Energia	Centro	67	60	50	Rua 7 de Setembro (arterial road, 44 m)
Escola Encano do Norte		67	61	49	Rodovia Ingo Hering (expressway, 96 m)
Escola de Educação Básica Municipal Olavo Bilac		67	60	50	Rua XV de Novembro (arterial road, 25 m)
Escola de Educação Básica Professor João Widemann	Itoupava Seca	67	60	51	Rua 4 de Fevereiro (arterial road, 55 m)
Escola de Educação Básica Carlos Techentin	Passo Manso	67	60	51	Rua Bahia (arterial road, 55 m)
Escola de Educação Básica José Bonifácio		67	59	51	Rua Frederico Weege (arterial road, 51 m)
Escola Duque de Caxias		67	60	51	Rua Doutor Pedro Zimmermann (arterial road, 28 m)
Centro de Educação de Jovens e Adultos	Itoupava Seca	66	59	52	Rua Engenheiro Paul Werner (arterial road, 42 m)
Escola Básica Municipal Vidal Ramos	Ponta Aguda	66	59	54	Rua Antônio Treis (arterial road, 43 m)
Escola Machado de Assis	Itoupava Seca	66	59	54	Rua Engenheiro Paul Werner (arterial road, 59 m)
Escola Nora Krueger Dallmann		66	59	54	Rua Vidal Ferreira (arterial road, 41 m)
Escola Técnica do Vale do Itajaí	Victor Konder	65	58	55	Rua Antônio da Veiga (arterial road, 87 m)
Escola Barão do Rio Branco	Jardim Blumenau	65	58	55	Rua 7 de Setembro (arterial road, 85 m)
Escola Professor Wigand Gelhardt	Badenfurt	65	58	56	Rodovia Ingo Hering (expressway, 234 m)
Escola Lauro Müller	Badenfurt	64	57	58	Rodovia Ingo Hering (expressway, 247 m)
Escola Básica Municipal Felipe Schmidt	Itoupavazinha	64	56	58	Rua Frederico Jensen (collector road, 21 m)
Colégio Adventista de Blumenau	Itoupava Seca	64	57	58	Rua São Paulo (arterial road, 100 m)
Escola de Educação Básica Doutor Max Tavares d'Amaral	Itoupava Norte	64	57	59	Rua São Valentim (arterial road, 64 m)
Escola Professora Nemésia Margarida	Badenfurt	64	58	59	Rodovia Ingo Hering (expressway, 109 m)
Escola de Educação Básica Cristoph Augenstein	Salto Weissbach	64	57	59	Rua Bahia (arterial road, 70 m)
Escola Anita Garibaldi	Loteamento Vila União	63	56	60	Rua Doutor Pedro Zimmermann (arterial road, 54 m)
Escola de Educação Básica Municipal Professor Curt Brandes		63	56	60	Rua Hermann Weege (arterial road, 58 m)
Colégio Sagrada Família	Centro	63	56	61	Rua 7 de Setembro (arterial road, 83 m)

The 11 most exposed hospitals

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
Hospital Unidade Centro	Centro	68	61	47	Rua 7 de Setembro (arterial road, 34 m)
Hospital Dia do Pulmão	Itoupava Seca	65	58	55	Rua Almirante Barroso (collector road, 29 m)
Hospital de Guabiruba		63	55	59	Rua 10 de Junho (collector road, 34 m)
Hospital Santo Antônio	Centro	62	54	63	Rua Itajaí (collector road, 29 m)
Hospital Unimed Blumenau	Jardim Blumenau	62	55	64	Rua Amazonas (arterial road, 95 m)
Hospital e Maternidade Rio do Testo		61	54	66	Rua Hermann Weege (arterial road, 88 m)
Hospital Municipal João Schreiber		61	53	66	Rua 11 de Novembro (collector road, 46 m)
Unimed	Vila Nova	61	53	67	Rua Almirante Barroso (collector road, 59 m)
Hospital Santa Isabel	Jardim Blumenau	59	51	72	Rua 7 de Setembro (arterial road, 182 m)
Hospital Universitário da FURB	Fortaleza Alta	55	49	80	Rodovia Ingo Hering (expressway, 360 m)
Hospital Misericórdia	Vila Itoupava	54	48	84	Rua Henrique Conrad (main local road, 70 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 Blumenau

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.