| Children of non manual workers | 1181 | | | 1796 | | |
| Air pollution: | | | | | | |
| Very low | 270 (23) | 2982 (709) | 3672 (916) | 665 (37) | 3452 (757) | 4351 (952) |
| Low | 367 (31) | 3087 (680) | 3770 (851) | 306 (17) | 3394 (717) | 4298 (934) |
| Moderate | 313 (26) | 3124 (668) | 3819 (905) | 622 (35) | 3416 (791) | 4353 (1022) |
| High | 231 (20) | 3064 (693) | 3742 (900) | 203 (11) | 3302 (685) | 4222 (921) |
| Males: | | | | | | |
| Never smoked | 204 (36) | 3610 (539) | 4422 (755) | 436 (48) | 3960 (605) | 4972 (803) |
| Ex-smoker | 198 (35) | 3608 (585) | 4462 (749) | 314 (35) | 4029 (590) | 5119 (746) |
| Current smoker | 169 (30) | 3384 (589) | 4143 (788) | 154 (17) | 3700 (596) | 4843 (714) |
| Females: | | | | | | |
| Never smoked | 289 (47) | 2666 (434) | 3244 (582) | 480 (54) | 2899 (449) | 3638 (593) |
| Ex-smoker | 165 (27) | 2698 (389) | 3217 (544) | 277 (31) | 2907 (434) | 3686 (600) |
| Current smoker | 156 (26) | 2469 (465) | 3079 (564) | 135 (15) | 2753 (506) | 3595 (604) |
| Children of manual workers | 986 | | | 4151 | | |
| Air pollution: | | | | | | |
| Very low | 145 (15) | 2984 (695) | 3621 (898) | 1436 (35) | 3302 (745) | 4162 (977) |
| Low | 339 (34) | 2995 (687) | 3591 (867) | 873 (21) | 3226 (742) | 4091 (956) |
| Moderate | 276 (28) | 2969 (698) | 3613 (899) | 1319 (32) | 3298 (752) | 4185 (985) |
| High | 226 (23) | 2972 (647) | 3581 (845) | 523 (13) | 3195 (777) | 4089 (988) |
| Males: | | | | | | |
| Never smoked | 145 (29) | 3588 (556) | 4233 (726) | 904 (44) | 3879 (605) | 4878 (793) |
| Ex-smoker | 175 (36) | 3557 (521) | 4320 (745) | 603 (30) | 3818 (600) | 4850 (803) |
| Current smoker | 173 (35) | 3226 (514) | 3973 (728) | 531 (26) | 3622 (621) | 4700 (819) |
| Females: | | | | | | |
| Never smoked | 200 (41) | 2582 (364) | 3089 (519) | 944 (45) | 2822 (455) | 3516 (619) |
| Ex-smoker | 129 (26) | 2589 (422) | 3097 (541) | 614 (29) | 2828 (463) | 3552 (601) |
| Current smoker | 164 (33) | 2364 (463) | 2894 (602) | 555 (26) | 2604 (481) | 3381 (612) |