| SUBCATEGORY | AREA | SRC_TYPE | CATEGORY | POLLUTANT | SEASON | CONTROL_TYPE | 1975 | 1980 | 1985 | 1990 | 1995 | 2000 | 2004 | 2005 | 2010 | 2015 | 2020 |
| AIRCRAFT | SOUTH COAST | MOBILE | OTHER MOBILE SOURCES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.7723 | 0.7723 | 0.7723 | 0.5238 | 0.5357 | 0.7851 | 0.7723 | 0.7611 | 0.6573 | 0.7203 | 0.7785 |
| FARM EQUIPMENT | SOUTH COAST | MOBILE | OTHER MOBILE SOURCES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 1.0757 | 1.4 | 0.9107 | 0.8868 | 0.6443 | 0.6184 | 0.5515 | 0.5319 | 0.4348 | 0.3288 | 0.2512 |
| FUEL STORAGE AND HANDLING | SOUTH COAST | MOBILE | OTHER MOBILE SOURCES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| HEAVY DUTY DIESEL URBAN BUSES (UB) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.236 | 0.261 | 0.283 | 0.33 | 0.297 | 0.347 | 0.315 | 0.307 | 0.283 | 0.269 | 0.243 |
| HEAVY DUTY GAS URBAN BUSES (UB) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.015 | 0.015 | 0.012 | 0.015 | 0.015 | 0.024 | 0.026 | 0.027 | 0.03 | 0.035 | 0.039 |
| HEAVY HEAVY DUTY DIESEL TRUCKS (HHDV) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 4.508 | 8.052 | 12.066 | 9.29 | 6.379 | 4.804 | 4.351 | 4.28 | 3.399 | 2.811 | 2.468 |
| HEAVY HEAVY DUTY GAS TRUCKS (HHDV) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.036 | 0.032 | 0.037 | 0.071 | 0.061 | 0.046 | 0.038 | 0.035 | 0.021 | 0.017 | 0.01 |
| LIGHT DUTY PASSENGER (LDA) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 7.134 | 6.445 | 7.561 | 6.892 | 6.654 | 6.899 | 7.236 | 7.316 | 7.766 | 8.435 | 8.957 |
| LIGHT DUTY TRUCKS - 1 (LDT1) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 1.266 | 0.893 | 1.036 | 1.416 | 1.463 | 1.499 | 1.578 | 1.6 | 1.713 | 1.867 | 1.98 |
| LIGHT DUTY TRUCKS - 2 (LDT2) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 1.804 | 1.161 | 1.385 | 1.899 | 1.947 | 2.352 | 2.596 | 2.663 | 3.041 | 3.47 | 3.733 |
| LIGHT HEAVY DUTY DIESEL TRUCKS - 1 (LHDV1) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.01 | 0.028 | 0.05 | 0.059 | 0.044 | 0.032 | 0.06 | 0.063 | 0.063 | 0.055 | 0.052 |
| LIGHT HEAVY DUTY DIESEL TRUCKS - 2 (LHDV2) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0 | 0.002 | 0.077 | 0.173 | 0.108 | 0.062 | 0.066 | 0.068 | 0.058 | 0.051 | 0.05 |
| LIGHT HEAVY DUTY GAS TRUCKS - 1 (LHDV1) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.063 | 0.085 | 0.122 | 0.127 | 0.129 | 0.12 | 0.136 | 0.142 | 0.151 | 0.158 | 0.162 |
| LIGHT HEAVY DUTY GAS TRUCKS - 2 (LHDV2) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.033 | 0.031 | 0.039 | 0.03 | 0.034 | 0.033 | 0.036 | 0.037 | 0.04 | 0.04 | 0.041 |
| MEDIUM DUTY TRUCKS (MDV) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.194 | 0.139 | 0.164 | 0.45 | 0.739 | 0.975 | 1.078 | 1.104 | 1.241 | 1.398 | 1.501 |
| MEDIUM HEAVY DUTY DIESEL TRUCKS (MHDV) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.093 | 0.349 | 1.043 | 1.551 | 1.483 | 1.303 | 1.385 | 1.405 | 1.218 | 1.021 | 0.88 |
| MEDIUM HEAVY DUTY GAS TRUCKS (MHDV) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.07 | 0.09 | 0.11 | 0.076 | 0.057 | 0.045 | 0.043 | 0.042 | 0.043 | 0.046 | 0.048 |
| MOTOR HOMES (MH) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.022 | 0.022 | 0.046 | 0.043 | 0.055 | 0.047 | 0.052 | 0.054 | 0.058 | 0.06 | 0.062 |
| MOTORCYCLES (MCY) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.121 | 0.131 | 0.152 | 0.128 | 0.086 | 0.061 | 0.071 | 0.073 | 0.066 | 0.057 | 0.056 |
| OFF-ROAD EQUIPMENT | SOUTH COAST | MOBILE | OTHER MOBILE SOURCES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 20.0995 | 19.1687 | 18.1109 | 18.9598 | 13.4843 | 13.3774 | 12.7 | 11.9339 | 10.2753 | 8.5672 | 7.2636 |
| OFF-ROAD RECREATIONAL VEHICLES | SOUTH COAST | MOBILE | OTHER MOBILE SOURCES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.0527 | 0.0741 | 0.093 | 0.0993 | 0.1007 | 0.1119 | 0.1207 | 0.123 | 0.1326 | 0.1426 | 0.1527 |
| RECREATIONAL BOATS | SOUTH COAST | MOBILE | OTHER MOBILE SOURCES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.6701 | 0.9012 | 1.1733 | 1.5482 | 1.9331 | 2.2518 | 2.9849 | 3.3061 | 3.6473 | 4.121 | 4.3353 |
| SCHOOL BUSES (SB) | SOUTH COAST | MOBILE | ON-ROAD MOTOR VEHICLES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.038 | 0.064 | 0.092 | 0.13 | 0.13 | 0.153 | 0.165 | 0.168 | 0.17 | 0.169 | 0.163 |
| SHIPS AND COMMERCIAL BOATS | SOUTH COAST | MOBILE | OTHER MOBILE SOURCES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.8088 | 2.5794 | 3.108 | 3.5603 | 3.5355 | 3.2709 | 3.5355 | 3.602 | 3.9316 | 4.6229 | 5.3118 |
| TRAINS | SOUTH COAST | MOBILE | OTHER MOBILE SOURCES | PM | ANNUAL AVERAGE | GROWN AND CONTROLLED | 0.7426 | 0.7426 | 0.7426 | 0.7426 | 0.9041 | 0.9959 | 1.0419 | 1.0182 | 0.9367 | 0.9323 | 0.9229 |