Table A1.

Questionnaire items on key variables.

No.	Rating of Personal Noise Exposure	Response Scale
		No Exposure				Extreme Exposure	Unable to Answer
1	Please rate on a scale of 1–5 the typical extent of your exposure to road-traffic noise in your residential environment	1	2	3	4	5	8
2	Please rate on a scale of 1–5 the typical extent of your exposure to road-traffic noise in your occupational environment	1	2	3	4	5	8
	Rating of Personal Traffic Exhausts Exposure	No Exposure				Extreme Exposure	Unable to Answer
3	Please rate on a scale of 1–5 the typical extent of your exposure to road-traffic exhausts in your residential environment	1	2	3	4	5	8
4	Please rate on a scale of 1–5 the typical extent of your exposure to road-traffic exhausts in your occupational environment	1	2	3	4	5	8
	Noise Annoyance	No Disturbance				Extreme Disturbance	Unable to Answer
5	Are you disturbed in some way by road-traffic noise?	1	2	3	4	5	8
6	Are you disturbed in some way by road traffic exhaust?	1	2	3	4	5	8
	Developing Symptoms	Not at All				Very Much	Unable to Answer
7	Does road-traffic noise usually cause you to experience some kind of symptoms, for example, feeling ill, headaches, respiratory symptoms, eye irritation?	1	2	3	4	5	8
8	Does road-traffic exhaust usually cause you to experience some kind of symptoms, for example feeling ill, headaches, respiratory symptoms, eye irritation?	1	2	3	4	5	8
No.	Perception of Health Risk	Response Scale
		No Risk				Extreme Risk	Unable to Answer
9	By your rating, how big a health risk is road-traffic noise to you?	1	2	3	4	5	8
10	By your rating, how big a health risk is road-traffic exhaust to you?	1	2	3	4	5	8
11	By your rating, how big a health risk is road-traffic noise to the general Finnish population?	1	2	3	4	5	8
12	By your rating, how big a health risk is road-traffic exhaust to the general Finnish population?	1	2	3	4	5	8
	Personal worry	Not Worried				Extremely Worried	Unable to Answer
13	In general, how worried are you about the health risks posed to you and your family by your residential environment?	1	2	3	4	5	8
	Assessment of Personal Knowledge	Nothing	Little	Some	A Lot	Very Much
14	In your opinion, how much do you know about health risks associated with road-traffic noise?	1	2	3	4	5
15	In your opinion, how much do you know about health risks associated with road-traffic exhausts?	1	2	3	4	5
	Environmental Attitudes	Strongly Agree	Agree	Neutral	Disagree	Strongly Disagree	Unable to Answer
16	People needlessly worry that developmental activities cause damage to the environment	1	2	3	4	5	8
17	There are more important things in life than environmental protection	1	2	3	4	5	8
18	Many arguments regarding environmental threats are exaggerated	1	2	3	4	5	8
No.	Nature Orientedness	Response Scale
		Strongly Agree	Agree	Neutral	Disagree	Strongly Disagree	Unable to Answer
19	I enjoy being in the city	1	2	3	4	5	8
20	I often feel distressed in a crowded and busy city	1	2	3	4	5	8
21	I feel that city centres are just the place for me	1	2	3	4	5	8
22	Green areas within cities do not fulfil my need to be in the nature	1	2	3	4	5	8
23	Sometimes I feel an urge to be in natural settings	1	2	3	4	5	8
24	I greatly appreciate areas with cafeterias, restaurants, museums, and theatres	1	2	3	4	5	8
25	I feel more comfortable in green areas and parks than in built environments	1	2	3	4	5	8
26	Noise Sensitivity	Strongly Agree	Agree	Neutral	Disagree	Strongly Disagree	Unable to Answer
	I get irritated when my neighbours cause noise	1	2	3	4	5	8
27	I am good at concentrating whatever happens around me
28	It is difficult for me relax in a noisy place	1	2	3	4	5	8
29	I am sensitive to noise	1	2	3	4	5	8