Table 4.

Source-specific NO_x (μg/m³), percentage of the total, and the CV within each source in 2000 among nonmovers.

Area	Traffic	Background	Agricultural	Industrial	Household	Total	No.
Basel	31.8	18.9	1.6	6.1	7.6	65.9	515
% total	48	29	2	9	11	100
CV (%)	42	36	3	20	13	25
Wald	4.0	11.4	1.4	1.9	1.0	19.8	669
% total	20	58	7	10	5	100
CV (%)	81	39	9	24	15	23
Davos	2.2	3.0	1.0	1.7	1.1	8.9	294
% total	24	34	11	19	12	100
CV (%)	86	42	10	31	17	26
Lugano	51.8	17.6	2.6	5.3	5.0	82.3	559
% total	63	21	3	6	6	100
CV (%)	55	33	9	23	17	37
Montana	5.6	4.9	2.3	2.5	0.8	16.1	381
% total	35	31	14	16	5	100
CV (%)	72	32	29	18	36	33
Payerne	9.1	14.5	1.9	2.7	1.4	29.7	582
% total	31	49	6	9	5	100
CV (%)	54	41	2	14	4	19
Aarau	19.0	15.9	1.5	4.6	2.4	43.4	523
% total	44	37	4	11	5	100
CV (%)	32	23	3	16	7	15
Geneva	36.1	15.8	2.2	6.7	12.1	72.9	335
% total	50	22	3	9	17	100
CV (%)	30	23	3	8	16	17
Overall	20.3	13.5	1.8	3.9	3.6	43.1	3,858
% total	47	31	4	9	8	100
CV (%)	105	104	37	49	32	68