Survey on Households and the Environment 
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Percentage of dwellings whose residents have suffered problems with noise in their surroundings, by net monthly household income and cause, and which have taken some measure
Units: %  over the total number of dwellings

	With a noise problem	Due to overland traffic	Due to air traffic	Due to neighbours	From animals	Mechanical causes (including construction)	Due to trade and recreational activities	Due to informal urban get-togethers (outdoor drinking)	Other causes	Have taken some measure against noise (*)	
TOTAL	25.1	11.7	1.9	8.9	2.8	7.3	3.5	2.8	1.5	31.0	
Less than 1,100 Euros	20.1	9.2	1.0	7.0	1.9	5.1	2.9	2.6	0.7	30.2	
From 1,101 to 1.800 euros	26.2	12.1	1.8	9.2	3.1	7.4	3.3	2.9	1.5	29.7	
From 1,801 to 2,700 euros	28.1	13.0	2.3	10.6	3.3	9.5	3.9	3.6	1.6	33.4	
More than 2,700 euros	32.1	16.5	3.5	11.7	4.5	13.0	4.5	3.3	2.7	37.4	
Does not know/ Does not answer	24.5	11.1	2.0	8.5	2.6	5.9	3.7	2.3	1.9	28.6	
Notes:
1) (*) % over the total number of dwellings with noise problems
Source: National Statistics Institute