Table A3.1 The 50 Road Links with the Highest Benzene Concentrations in 2010

	Road Number	Road Class*	Location**	2010 Benzene Conc. (ppb)	Grid Reference
					North	East
1	A4202	PB	Inn/Cen London London	1.33	179909	527927
2	A4	TB	Inn/Cen London London	1.22	178414	525037
3	A4	PB	Inn/Cen London London	1.20	178627	525361
4	A501	TB	Inn/Cen London London	1.17	181700	527404
5	A3	PB	Inn/Cen London London	1.17	177642	531360
6	A501	TB	Inn/Cen London London	1.16	181917	527933
7	A4	PB	Inn/Cen London London	1.15	178831	527007
8	A46	PB	Leicester	1.14	304394	458310
9	A4	TB	Inn/Cen London London	1.13	178414	523528
10	A4	TB	Inn/Cen London London	1.12	178384	521893
11	A3211	PB	Inn/Cen London London	1.11	180833	531146
12	A406	TB	Outer London	1.10	187912	522849
13	A4	PB	Inn/Cen London London	1.08	179809	527762
14	A501	TB	Inn/Cen London London	1.06	182331	528926
15	A4	TB	Outer London	1.06	177881	521893
16	A404	PB	Inn/Cen London London	1.06	181700	526517
17	A4	PB	Inn/Cen London London	1.04	179925	528392
18	A501	TB	Inn/Cen London London	1.04	181917	527404
19	A4	TB	Inn/Cen London London	1.04	178384	523773
20	A40M	MT	Inn/Cen London London	1.02	181118	527068
21	A40M	MT	Inn/Cen London London	1.02	181118	527068
22	A46	PB	Leicester	1.02	304711	458550
23	A4	PB	Inn/Cen London London	1.02	179909	528337
24	A3211	PB	Inn/Cen London London	1.02	180301	531146
25	M8	MT	Glasgow	1.01	666390	260240
26	A406	TB	Outer London	1.00	186025	522627
27	A4	TB	Outer London	0.99	177881	519624
28	M25	MT	M25	0.99	172734	503724
29	A40	PB	Inn/Cen London London	0.98	180952	527927
30	A40	TB	Inn/Cen London London	0.98	181113	521605
31	A40	PB	Inn/Cen London London	0.97	181004	527772
32	A4	PB	Inn/Cen London London	0.96	179809	528337
33	A202	PB	Inn/Cen London London	0.96	178040	529962
34	M62	MT	Manchester	0.95	399024	374687
35	M8	MT	Glasgow	0.95	664630	258020
36	A3	PB	Inn/Cen London London	0.94	178891	531796
37	A5201	PB	Inn/Cen London London	0.94	182567	533256
38	A3205	PB	Inn/Cen London London	0.93	177871	528693
39	A40	PB	Inn/Cen London London	0.93	180501	525215
40	M25	MT	M25	0.93	185687	504590
41	A4209	PB	Inn/Cen London London	0.93	180816	526702
42	A406	TN	Outer London	0.93	190457	539351
43	M6	MT	Birmingham	0.93	296469	401777
44	A3211	PB	Inn/Cen London London	0.93	180818	533503
45	A306	PB	Inn/Cen London London	0.93	178555	523226
46	A58	PB	Leeds	0.93	433276	428961
47	A40	PB	Inn/Cen London London	0.92	180501	526665
48	A3205	PB	Inn/Cen London London	0.92	175273	527083
49	M25	MT	M25	0.92	178396	503724
50	A3220	PB	Inn/Cen London London	0.92	177495	526469

*Road Classes are defined as follow:-

MT- Motorway

P/T- Primary/Tertiary

B/N- Built up/Non-Built up

** Motorway and non-built up road link estimates have greater uncertainty than the estimates for built up road links.