Review Stage 2: Synthesis and Assessment Country report
KEY SOURCE ANALYSIS FOR
CLRTAP
Party: GB Submission year: 2018
Key categories analysis is increasingly important in order to prioritize emission sources and identify where the implementation of improvements is most effective. We have assessed the most important sources (the sources making up 80% of the national total) for your country, based on your latest submission. The key sources for the 2016, 2010 and 2005 emissions, including the corresponding percentages, are listed below. |
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2016 | 1A3bi (17.2%) | 1A1a (13.7%) | 1A3bii (11.5%) | 1A3dii (9.8%) | 1A2gviii (6.9%) | 1A3biii (6.4%) | 1A1c (6.4%) | 1A3c (3.8%) | 1A4bi (3.7%) | 1A2gvii (3.3%) | 82.6% | |||||
| NMVOC | 2016 | 2D3a (17.9%) | 2H2 (11.9%) | 2D3d (9.8%) | 2D3i (8.1%) | 3B1b (5.8%) | 1A4bi (5.3%) | 1B2ai (4.3%) | 1B2c (3.0%) | 1B2b (3.0%) | 3B1a (3.0%) | 1B2av (2.7%) | 1B2aiv (2.5%) | 1A2gvii (1.8%) | 1A3bv (1.8%) | 81.0% | |
| SOx | 2016 | 1A4bi (22.4%) | 1A1a (20.5%) | 1A1b (14.9%) | 1A2gviii (10.2%) | 1A3dii (6.6%) | 1A2a (5.3%) | 2A6 (3.1%) | 82.9% | ||||||||
| NH3 | 2016 | 3Da2a (21.0%) | 3Da1 (19.4%) | 3B1b (13.3%) | 3B1a (12.2%) | 3Da3 (6.4%) | 3B3 (4.5%) | 6A (4.5%) | 81.2% | ||||||||
| PM2.5 | 2016 | 1A4bi (39.9%) | 1A2gviii (11.8%) | 1A3bvi (5.3%) | 1A3bi (2.9%) | 1A2gvii (2.7%) | 1A3bvii (2.7%) | 2D3d (2.7%) | 2C1 (2.5%) | 1A1a (2.5%) | 2A5b (2.2%) | 1A3dii (2.1%) | 5E (1.8%) | 1A3bii (1.6%) | 80.5% | ||
| PM10 | 2016 | 1A4bi (25.8%) | 2A5b (13.7%) | 1A2gviii (7.7%) | 1A3bvi (6.0%) | 2A5a (5.7%) | 2D3d (4.3%) | 1A3bvii (3.1%) | 3Dc (2.8%) | 2C1 (2.6%) | 1A1a (1.9%) | 1A3bi (1.8%) | 1A2gvii (1.7%) | 1A3dii (1.4%) | 3B4giv (1.4%) | 3B4gii (1.3%) | 81.1% |
| TSP | 2016 | 2A5b (46.4%) | 1A4bi (12.4%) | 2A5a (5.3%) | 1A3bvi (3.7%) | 1A2gviii (3.6%) | 1A3bvii (2.9%) | 3Dc (2.5%) | 2C1 (2.1%) | 2D3d (2.1%) | 81.0% | ||||||
| BC | 2016 | 1A4bi (22.1%) | 1A2gviii (20.1%) | 1A2gvii (10.2%) | 1A3bi (6.1%) | 1A4cii (5.4%) | 1A3bii (4.6%) | 5E (4.5%) | 1A3c (4.2%) | 1A3dii (4.1%) | 81.2% | ||||||
| CO | 2016 | 1A4bi (27.0%) | 1A3bi (14.9%) | 1A2gvii (14.5%) | 1A2a (6.7%) | 2C1 (4.9%) | 1A4bii (4.7%) | 1A2gviii (4.2%) | 1A1a (2.8%) | 1A3dii (2.5%) | 82.3% | ||||||
| Pb | 2016 | 2C1 (30.9%) | 1A2gviii (14.7%) | 2G (12.9%) | 2B10a (7.2%) | 1A4bi (7.1%) | 2C7c (4.8%) | 2I (4.7%) | 82.4% | ||||||||
| Cd | 2016 | 1A4bi (29.1%) | 1A2gviii (26.4%) | 2C1 (12.1%) | 1A3bi (6.2%) | 2G (4.9%) | 1A1a (4.6%) | 83.2% | |||||||||
| Hg | 2016 | 1A1a (21.7%) | 5C1bv (15.0%) | 1A2gviii (10.3%) | 2C1 (9.0%) | 5A (8.8%) | 2C7c (5.3%) | 1A4bi (4.9%) | 1A2f (4.2%) | 1A3bi (3.9%) | 83.0% | ||||||
| As | 2016 | 5C2 (59.5%) | 2C1 (19.9%) | 1A1a (5.1%) | 84.6% | ||||||||||||
| Cr | 2016 | 5C2 (34.7%) | 2C1 (12.9%) | 1A4bi (12.1%) | 1A2gviii (7.3%) | 1A1a (6.9%) | 2C7c (6.5%) | 80.5% | |||||||||
| Cu | 2016 | 1A3bvi (47.2%) | 2G (9.5%) | 5C2 (9.4%) | 2C1 (7.5%) | 1A2gviii (4.4%) | 1A1a (3.3%) | 81.4% | |||||||||
| Ni | 2016 | 1A4bi (52.6%) | 1A2gviii (11.0%) | 1A3dii (8.5%) | 2C1 (3.5%) | 1A4ai (3.1%) | 1A1b (3.0%) | 81.6% | |||||||||
| Se | 2016 | 1A1a (39.8%) | 2A3 (14.1%) | 1A4bi (10.8%) | 2C1 (9.6%) | 1A2f (3.9%) | 1A2gviii (3.7%) | 81.9% | |||||||||
| Zn | 2016 | 1A2gviii (30.7%) | 1A3bvi (20.8%) | 2C1 (16.5%) | 1A3bi (9.8%) | 1A4bi (9.3%) | 87.0% | ||||||||||
| DIOX | 2016 | 1A4bi (34.3%) | 2C1 (13.4%) | 5E (13.0%) | 1A2gviii (10.5%) | 5C2 (8.1%) | 5C1bv (6.4%) | 85.6% | |||||||||
| PAH | 2016 | 1A4bi (85.9%) | 85.9% | ||||||||||||||
| HCB | 2016 | 1A1a (68.2%) | 3Df (29.4%) | 97.6% | |||||||||||||
| PCB | 2016 | 2K (59.1%) | 2C1 (16.4%) | 5E (12.3%) | 87.8% | ||||||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2010 | 1A1a (20.2%) | 1A3bi (13.9%) | 1A3biii (12.5%) | 1A3dii (8.8%) | 1A2gviii (5.9%) | 1A3bii (5.2%) | 1A2gvii (5.2%) | 1A1c (4.8%) | 1A4bi (3.3%) | 1A3c (3.1%) | 82.9% | ||||||
| NMVOC | 2010 | 2D3a (14.7%) | 2D3d (9.4%) | 2H2 (9.3%) | 2D3i (6.1%) | 3B1b (5.4%) | 1B2ai (4.8%) | 1A4bi (4.7%) | 1A3bi (4.5%) | 1B2b (4.0%) | 1B2av (3.1%) | 1B2c (2.9%) | 1B1a (2.7%) | 3B1a (2.6%) | 2B10a (2.4%) | 1B2aiv (2.3%) | 1A2gvii (2.2%) | 81.3% |
| SOx | 2010 | 1A1a (38.6%) | 1A1b (12.6%) | 1A4bi (9.5%) | 1A2gviii (9.0%) | 1A3dii (6.8%) | 1A2b (5.1%) | 81.6% | ||||||||||
| NH3 | 2010 | 3Da2a (21.4%) | 3Da1 (16.2%) | 3B1b (15.0%) | 3B1a (11.9%) | 3Da3 (6.7%) | 6A (4.7%) | 3B3 (4.6%) | 80.7% | |||||||||
| PM2.5 | 2010 | 1A4bi (36.6%) | 1A2gviii (7.8%) | 1A2gvii (4.9%) | 1A3bi (4.7%) | 1A3bvi (4.3%) | 1A1a (3.5%) | 1A3bii (3.4%) | 1A3dii (2.9%) | 1A4cii (2.3%) | 1A3bvii (2.2%) | 2C1 (2.0%) | 1A3biii (2.0%) | 2A5b (2.0%) | 5E (1.6%) | 80.4% | ||
| PM10 | 2010 | 1A4bi (24.7%) | 2A5b (12.9%) | 1A2gviii (5.3%) | 2A5a (5.3%) | 1A3bvi (5.1%) | 1A1a (3.5%) | 1A2gvii (3.3%) | 1A3bi (3.1%) | 1A3bvii (2.7%) | 3Dc (2.5%) | 2C1 (2.5%) | 1A3bii (2.3%) | 2D3d (2.1%) | 1A3dii (2.0%) | 1A4cii (1.5%) | 1A3biii (1.3%) | 80.0% |
| TSP | 2010 | 2A5b (46.5%) | 1A4bi (12.0%) | 2A5a (5.0%) | 1A3bvi (3.2%) | 1A2gviii (2.5%) | 1A3bvii (2.5%) | 3Dc (2.3%) | 1A1a (2.1%) | 2C1 (2.0%) | 1A2gvii (1.5%) | 1A3bi (1.4%) | 81.0% | |||||
| BC | 2010 | 1A4bi (14.2%) | 1A3bi (14.2%) | 1A2gvii (13.7%) | 1A3bii (13.1%) | 1A2gviii (10.1%) | 1A3biii (6.4%) | 1A4cii (6.0%) | 1A3dii (3.3%) | 80.9% | ||||||||
| CO | 2010 | 1A3bi (30.2%) | 1A4bi (20.8%) | 1A2gvii (10.2%) | 1A2a (5.8%) | 1A1a (3.5%) | 1A4bii (3.4%) | 2C1 (3.3%) | 1A2gviii (2.7%) | 1A3bii (2.5%) | 82.4% | |||||||
| Pb | 2010 | 2C1 (30.7%) | 1A2gviii (15.6%) | 2G (12.8%) | 1A4bi (6.3%) | 2I (5.1%) | 2B10a (5.1%) | 2C7c (4.8%) | 80.4% | |||||||||
| Cd | 2010 | 1A4bi (21.3%) | 2C1 (17.0%) | 1A2gviii (16.4%) | 2G (6.6%) | 1A3bi (6.3%) | 1A2b (5.2%) | 1A1a (4.0%) | 2C7c (3.1%) | 80.0% | ||||||||
| Hg | 2010 | 1A1a (22.9%) | 5C1bv (13.0%) | 2B10a (12.5%) | 1A2gviii (8.0%) | 2C1 (5.8%) | 5A (5.6%) | 1A1b (4.9%) | 2C7c (3.8%) | 1A2f (3.8%) | 80.2% | |||||||
| As | 2010 | 5C2 (54.7%) | 2C1 (21.7%) | 1A2gviii (6.0%) | 82.4% | |||||||||||||
| Cr | 2010 | 5C2 (32.2%) | 1A4bi (9.7%) | 2C1 (7.4%) | 1A1a (7.2%) | 2C7c (7.0%) | 2B10a (6.8%) | 1A2gviii (5.5%) | 1B1b (5.4%) | 81.2% | ||||||||
| Cu | 2010 | 1A3bvi (41.1%) | 2G (9.7%) | 5C2 (8.5%) | 2C1 (7.8%) | 1A2gviii (5.0%) | 2B10a (3.4%) | 1A1a (3.4%) | 1A3dii (3.1%) | 82.2% | ||||||||
| Ni | 2010 | 1A4bi (28.5%) | 1A2gviii (27.2%) | 1A3dii (15.8%) | 1A1b (4.5%) | 1A2c (3.0%) | 1A4ai (2.2%) | 81.4% | ||||||||||
| Se | 2010 | 1A1a (40.1%) | 2A3 (29.5%) | 2C1 (6.2%) | 1A4bi (6.0%) | 81.9% | ||||||||||||
| Zn | 2010 | 1A2gviii (33.7%) | 1A3bvi (18.8%) | 2C1 (17.0%) | 1A3bi (9.6%) | 1A4bi (6.5%) | 85.6% | |||||||||||
| DIOX | 2010 | 1A4bi (30.7%) | 2C1 (18.7%) | 5E (12.4%) | 1A2gviii (7.2%) | 5C2 (7.0%) | 1A3bi (4.9%) | 80.9% | ||||||||||
| PAH | 2010 | 1A4bi (85.1%) | 85.1% | |||||||||||||||
| HCB | 2010 | 3Df (67.5%) | 1A1a (30.5%) | 98.0% | ||||||||||||||
| PCB | 2010 | 2K (59.6%) | 2C1 (17.5%) | 5E (9.9%) | 87.0% | |||||||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2005 | 1A1a (22.0%) | 1A3bi (16.7%) | 1A3biii (13.0%) | 1A3dii (7.7%) | 1A2gvii (5.5%) | 1A2gviii (5.1%) | 1A3bii (4.4%) | 1A1c (4.2%) | 1A4cii (3.1%) | 81.7% | |||||||||
| NMVOC | 2005 | 1A3bi (10.9%) | 2D3a (10.9%) | 2D3d (10.7%) | 1B2ai (6.9%) | 2H2 (6.6%) | 3B1b (4.4%) | 1B2av (4.3%) | 1B2b (3.9%) | 1A3bv (3.7%) | 2D3i (3.6%) | 2B10a (3.3%) | 1B2aiv (2.8%) | 1B1a (2.6%) | 1A4bi (2.4%) | 3B1a (2.2%) | 1A2gvii (2.2%) | 81.2% | ||
| SOx | 2005 | 1A1a (50.1%) | 1A1b (9.7%) | 1A3dii (9.2%) | 1A4bi (5.4%) | 1A2gviii (4.7%) | 1A2b (4.0%) | 83.2% | ||||||||||||
| NH3 | 2005 | 3Da2a (21.9%) | 3B1b (15.1%) | 3Da1 (14.4%) | 3B1a (10.5%) | 3Da3 (6.9%) | 1A3bi (5.9%) | 3B3 (5.5%) | 80.3% | |||||||||||
| PM2.5 | 2005 | 1A4bi (22.1%) | 1A2gvii (7.3%) | 1A3dii (7.1%) | 1A2gviii (5.6%) | 1A3bi (5.1%) | 1A3bii (4.7%) | 1A1a (4.6%) | 1A4cii (4.5%) | 1A3bvi (4.3%) | 1A3biii (3.6%) | 2C1 (2.5%) | 1A3bvii (2.2%) | 5E (2.0%) | 2A5b (1.9%) | 2D3d (1.7%) | 2G (1.6%) | 80.9% | ||
| PM10 | 2005 | 1A4bi (14.5%) | 2A5b (11.9%) | 2A5a (6.8%) | 1A3bvi (5.0%) | 1A1a (4.8%) | 1A3dii (4.8%) | 1A2gvii (4.7%) | 1A2gviii (3.7%) | 1A3bi (3.3%) | 1A3bii (3.0%) | 1A4cii (2.9%) | 2C1 (2.8%) | 1A3bvii (2.6%) | 2D3d (2.5%) | 1A3biii (2.3%) | 3Dc (2.2%) | 2G (1.5%) | 2A6 (1.5%) | 80.9% |
| TSP | 2005 | 2A5b (41.9%) | 1A4bi (7.5%) | 2A5a (6.8%) | 1A3bvi (3.3%) | 1A1a (3.2%) | 1A3bvii (2.6%) | 2C1 (2.4%) | 1A3dii (2.3%) | 1A2gvii (2.3%) | 3Dc (2.1%) | 1A2gviii (1.8%) | 1A3bi (1.6%) | 1A3bii (1.5%) | 1A4cii (1.4%) | 80.7% | ||||
| BC | 2005 | 1A2gvii (17.0%) | 1A3bii (14.3%) | 1A3bi (13.5%) | 1A4cii (9.6%) | 1A3biii (9.2%) | 1A2gviii (7.4%) | 1A4bi (6.9%) | 1A3dii (5.0%) | 83.0% | ||||||||||
| CO | 2005 | 1A3bi (47.7%) | 1A4bi (10.5%) | 1A2a (7.4%) | 1A2gvii (7.1%) | 1A3bii (3.3%) | 1A3biv (2.7%) | 2C1 (2.7%) | 81.5% | |||||||||||
| Pb | 2005 | 2C1 (33.8%) | 2G (12.4%) | 2B10a (11.1%) | 1A2gviii (9.6%) | 1A1a (8.3%) | 2C7c (5.9%) | 81.1% | ||||||||||||
| Cd | 2005 | 2C1 (22.1%) | 1A1a (20.5%) | 1A2gviii (11.6%) | 1A4bi (10.4%) | 2G (5.9%) | 1A3bi (5.8%) | 2C7c (3.3%) | 1A2f (2.6%) | 82.2% | ||||||||||
| Hg | 2005 | 1A1a (30.9%) | 2B10a (15.2%) | 5C1bv (12.2%) | 2C7c (6.9%) | 2C1 (6.4%) | 5A (5.0%) | 1A2gviii (3.9%) | 80.5% | |||||||||||
| As | 2005 | 5C2 (48.1%) | 2C1 (27.6%) | 1A2gviii (5.1%) | 80.7% | |||||||||||||||
| Cr | 2005 | 2B10a (23.7%) | 5C2 (21.6%) | 1A1a (11.1%) | 2C1 (9.2%) | 2C7c (8.3%) | 1A4bi (5.0%) | 1B1b (3.5%) | 82.4% | |||||||||||
| Cu | 2005 | 1A3bvi (35.0%) | 2G (13.1%) | 2C1 (10.1%) | 5C2 (7.0%) | 1A1a (4.8%) | 1A2gviii (4.5%) | 2B10a (4.2%) | 2C7c (3.8%) | 82.4% | ||||||||||
| Ni | 2005 | 1A4bi (25.1%) | 1A2gviii (25.1%) | 1A3dii (17.5%) | 1A1b (5.8%) | 1A1a (3.8%) | 2C1 (2.6%) | 2C3 (2.5%) | 82.4% | |||||||||||
| Se | 2005 | 1A1a (46.7%) | 2A3 (33.4%) | 80.1% | ||||||||||||||||
| Zn | 2005 | 1A2gviii (32.0%) | 2C1 (21.6%) | 1A3bvi (17.1%) | 1A3bi (9.6%) | 80.2% | ||||||||||||||
| DIOX | 2005 | 1A4bi (20.7%) | 5E (19.2%) | 5C2 (16.2%) | 2C1 (13.8%) | 1A3bi (4.9%) | 5C1bv (4.2%) | 1A1a (3.7%) | 82.7% | |||||||||||
| PAH | 2005 | 1A4bi (63.5%) | 5C2 (14.9%) | 5E (5.8%) | 84.1% | |||||||||||||||
| HCB | 2005 | 3Df (55.1%) | 2B10a (33.4%) | 88.5% | ||||||||||||||||
| PCB | 2005 | 2K (59.4%) | 2C1 (15.2%) | 5E (10.2%) | 84.8% | |||||||||||||||