Survey on Households and the Environment 
Classification by characteristics of the reference person
Percentage of dwellings whose residents have suffered problems with odours in their surroundings, by level of studies completed by the reference person and cause, and which have taken some measure
Units: %  over the total number of dwellings

	With an odour problem	Due to smoke, tobacco etc.	Pipelines, sewerage, etc, ...	Farms	Industries (food, fishing, workshops, etc,...)	Trade (supermarkets, fishmongers, etc.)	Litter bins	Dumps	Other causes	Have taken some measure against odours (*)	
TOTAL	20.3	1.2	11.6	2.8	1.7	0.6	1.8	0.9	3.4	29.1	
Without studies	15.4	0.6	8.3	2.5	1.6	0.2	1.7	0.3	2.5	26.4	
Primary education or the equivalent	18.8	1.0	9.9	3.0	1.8	0.4	1.6	0.7	3.2	24.7	
Stage one secondary education	23.8	0.7	13.4	3.8	2.1	0.5	2.5	1.2	3.2	30.2	
Upper-secondary education	21.6	1.1	13.1	2.5	1.4	1.0	2.2	1.5	3.1	29.4	
Intermediate level-professional education	22.9	1.3	14.0	3.2	1.7	0.3	2.2	1.4	3.9	29.1	
Higher level -professional education	27.1	3.2	14.9	3.4	1.4	0.8	1.9	1.0	5.9	34.4	
1st cycle university studies	21.2	1.2	12.6	2.0	1.6	0.6	1.3	1.0	3.2	33.1	
2nd or 3rd cycle university studies	20.1	2.1	13.2	1.5	1.7	1.0	1.4	1.2	4.1	35.0	
Does not know/ Does not answer	21.9	.	21.9	21.9	.	.	.	.	.	.	
Notes:

.Data protected by statistical secrecy

1) (*) % over the total number of dwellings with odours problems
Source: National Statistics Institute