Table 1

Distance distributions of births and deaths relative to nearest emissions hotspots

Distances (km)	−0.3	−0.5	−1.0	−2.0	−5.0	>5.0	0–1.0*	(0.95 CI)
*B/D ratios ⩽1.0 in subset who migrated >1.0 km and who had one address within 1.0 km of the nearest hazard, and the other address outside this distance.
Dioxins (1078 map points)
Births	123	83	182	436	1334	2967	360
Deaths	38	33	118	383	1290	3263	161
B/D ratio	3.24	2.52	1.54	1.14	1.03	0.91	2.24	1.85 to 2.70
1,3-butadiene (11944)
Births	1123	284	611	930	1058	1119	1258
Deaths	477	230	604	1042	1486	1286	551
B/D ratio	2.35	1.23	1.01	0.89	0.71	0.87	2.28	2.06 to 2.53
Carbon monoxide (13371)
Births	1798	308	647	743	855	774	1433
Deaths	853	286	763	1102	1201	920	582
B/D ratio	2.11	1.08	0.85	0.67	0.71	0.84	2.46	2.23 to 2.72
PM10 particles (39749)
Births	1976	434	847	948	732	188	1420
Deaths	1113	493	1008	1295	1013	203	777
B/D ratio	1.78	0.88	0.84	0.73	0.72	0.93	1.83	1.67 to 2.00
Benzo(a)pyrene (13813)
Births	826	242	490	586	1500	1481	909
Deaths	563	200	411	649	1522	1780	525
B/D ratio	1.47	1.21	1.19	0.90	0.99	0.83	1.73	1.55 to 1.94
Nitrogen oxides (53875)
Births	2809	426	682	454	416	338	1019
Deaths	1936	506	982	786	553	362	526
B/D ratio	1.45	0.84	0.69	0.58	0.75	0.93	1.94	1.74 to 2.16
Non-methane-VOC (53279)
Births	3515	338	420	260	315	277	668
Deaths	3023	451	572	353	420	306	441
B/D ratio	1.16	0.75	0.73	0.74	0.75	0.91	1.51	1.34 to 1.71
Benzene (59811)
Births	3672	330	365	244	293	221	626
Deaths	3152	446	559	310	391	267	416
B/D ratio	1.16	0.74	0.65	0.79	0.75	0.83	1.50	1.32 to 1.71