Sensitivity map

Schools and hospitals most exposed to noise in Castanhal

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 49 schools and 7 hospitals with a name in OpenStreetMap in Castanhal, with the same model used for the neighbourhoods, at the point of each one.

schools

44 / 49

44 of 49 (90%) sit at points whose daytime estimate is above 50 dB(A); at night, 39 are above 45 dB(A). Average: 58.5 dB(A) by day.

hospitals

6 / 7

6 of 7 (86%) sit at points whose daytime estimate is above 50 dB(A); at night, 4 are above 45 dB(A). Average: 58.1 dB(A) by day.

The 30 most exposed schools

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
Escola Técnica Cônego Inácio Magalhães		71	64	39	Avenida Barão do Rio Branco (arterial road, 19 m)
FAMAC UNOPAR	Ianetama	69	62	45	Avenida Marximino Porpino (arterial road, 23 m)
E.M.E.F MONSENHOR MARIA DO LAGO	Ianetama	68	61	47	Rua Pedro Porpino (arterial road, 29 m)
Escola Estadual Dom Mário de Miranda Vilas Boas		68	61	48	Avenida Tenente Pinon (arterial road, 26 m)
Escola Conego Calado		68	61	48	Avenida Barão do Rio Branco (arterial road, 46 m)
E.M.E.F EMILIA GIMENNEZ	Salgadinho	67	60	50	Rua Pedro Porpino (arterial road, 32 m)
Escola Nilo de Oliveira		67	60	50	Avenida Barão do Rio Branco (arterial road, 48 m)
Nilo de Oliveira		67	60	50	Avenida Barão do Rio Branco (arterial road, 48 m)
EEEM Cônego Leitão	Pirapora	66	59	52	Avenida Barão do Rio Branco (arterial road, 82 m)
Escola de Ensino Médio Clotilde Pereira	Nova Olinda	66	59	53	Avenida Barão do Rio Branco (arterial road, 60 m)
E.M.E.F EMÍLIA GIMENEZ	Salgadinho	65	58	56	Rua Pedro Porpino (arterial road, 50 m)
Escola Leite	Cristo Redentor	64	56	58	Avenida Barão do Rio Branco (collector road, 35 m)
E.E.E.M INÁCIO KOURY GABRIEL NETO	Ianetama	63	57	60	Avenida Presidente Getúlio Vargas (expressway, 112 m)
E.M.E.F RAIMUNDA MAIA DE CARVALHO	Rouxinol	62	53	63	Rua Francisco Pereira Lago (main local road, 9 m)
EEEF Leandra Paulino Corrêa		62	55	63	PA-242 (arterial road, 101 m)
C.M.E.I PEQUENO DAVI	Caiçara	62	54	64	Alameda Imperial (main local road, 14 m)
E. M. E. F MANOEL PINTO SOUZA	Titanlândia	60	53	68	Avenida Barão do Rio Branco (collector road, 95 m)
Escola Municipal de Ensino Fundamental Raposo Tavares		60	53	68	Avenida Barão do Rio Branco (arterial road, 145 m)
CIAC - Centro Integrado de Arte e Cultura		60	53	69	Avenida Barão do Rio Branco (arterial road, 150 m)
E.M.E.F IRENE RODRIGUES TITAN	Jaderlândia	60	51	69	Rua Doutor Adailson da Silva Rodrigues (main local road, 13 m)
E.ME.F. MADRE MARIA VIGANO	Nova Olinda	60	53	70	Avenida Barão do Rio Branco (arterial road, 168 m)
E. E. E. M INÁCIO COURY GABRIEL NETO	Cariri	59	51	70	Travessa Doutor Lauro Sodré (collector road, 45 m)
E.E.E.M 28 DE JANEIRO	Pirapora	59	52	70	Avenida Presidente Getúlio Vargas (expressway, 327 m)
E.M.E.F PROF° IZAURA DOMINGOS COSTA		59	50	70
E.M.E.F PEDRO COELHO DA MOTA	Heliolândia	59	50	72	Rua Quatro de Julho (main local road, 17 m)
E M E I SAO JOAQUIM		58	51	73	Avenida Tenente Pinon (arterial road, 132 m)
E.M.E.F SÃO JOÃO BOSCO	Cariri	58	49	73	Rua São João (main local road, 18 m)
E.M.E.F FRANCISCO ESPINHEIRO GOMES	NOVO CRUZEIRO	58	50	75	Rua Marechal Deodoro (collector road, 75 m)
C.E.M. INFANTIL FRANCISCO BAHIA DE AGUIAR	Cariri	57	49	76	Avenida Brasil (main local road, 29 m)
E.E.E.FM BENICIO LOPES	Santa Lídia	57	50	76	Avenida Presidente Getúlio Vargas (expressway, 293 m)

The 7 most exposed hospitals

Name	Neighbourhood	dB(A) day	night	Index	Road that weighs most
UPA- Unidade de Pronto Atendimento	Cristo Redentor	68	62	47	Rodovia BR-316 (expressway, 82 m)
HOSPITAL FRANCISCO MAGALHÃES	Pirapora	67	60	49	Avenida Barão do Rio Branco (arterial road, 62 m)
Unidade básica de saúde de Bujaru		66	59	52	Avenida Tenente Pinon (arterial road, 34 m)
Hospital Municipal de Urgência e Emergengência Maria Laise Pereira	Nova Olinda	65	58	56	Rua Major Wilson (arterial road, 84 m)
Hospital Regional Público de Castanhal	Jaderlândia	51	43	91	Avenida dos Univertários (main local road, 112 m)
Hospital São Lucas		51	43	93	Avenida Tenente Pinon (arterial road, 349 m)
UBS UNIDADE BÁSICA DE SAÚDE		38	33	100

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 Castanhal

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.