Review Stage 2: Synthesis and Assessment Country report
KEY SOURCE ANALYSIS
Party: WEST Submission year: 2022
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 2020, 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 | 2020 | 1A3bi (17.1%) | 1A1a (12.0%) | 1A3biii (11.5%) | 1A3bii (6.5%) | 3Da1 (5.8%) | 1A4bi (5.5%) | 1A3dii (5.1%) | 1A4cii (3.6%) | 1A2gviii (3.4%) | 1A2f (3.3%) | 3Da2a (2.7%) | 1A4ai (2.5%) | 1A1c (2.0%) | 81.0% | ||||
| NMVOC | 2020 | 2D3a (12.5%) | 1A4bi (11.5%) | 2D3d (10.1%) | 3B1a (7.7%) | 3B1b (5.7%) | 2H2 (4.6%) | 2D3i (4.5%) | 2D3g (4.4%) | 3De (3.2%) | 3Da2a (3.2%) | 1A3bi (2.5%) | 2D3h (2.4%) | 1A3bv (2.1%) | 2D3e (1.6%) | 1B2av (1.4%) | 1B1a (1.4%) | 3B4gii (1.3%) | 80.3% |
| SOx | 2020 | 1A1a (44.1%) | 1A4bi (11.6%) | 1A2f (5.5%) | 1A1b (4.2%) | 1A2a (3.5%) | 1A2gviii (3.4%) | 1B2aiv (2.9%) | 2B10a (2.7%) | 1A2c (2.3%) | 80.1% | ||||||||
| NH3 | 2020 | 3Da2a (23.5%) | 3Da1 (15.8%) | 3B1b (11.4%) | 3B1a (11.1%) | 3B3 (10.6%) | 3Da3 (6.9%) | 3B4gii (3.9%) | 83.2% | ||||||||||
| PM2.5 | 2020 | 1A4bi (52.6%) | 5C2 (4.5%) | 1A2f (3.8%) | 1A2gviii (3.0%) | 1A3bvi (2.7%) | 1A1a (2.2%) | 1A3bi (2.2%) | 1A4ci (2.1%) | 5E (2.1%) | 1A3bvii (1.6%) | 1A4ai (1.5%) | 2A5b (1.3%) | 1A3dii (1.2%) | 80.8% | ||||
| PM10 | 2020 | 1A4bi (37.1%) | 3Dc (8.5%) | 2A5b (6.3%) | 2A5a (3.8%) | 1A3bvi (3.5%) | 5C2 (3.2%) | 1A3bvii (2.8%) | 1A1a (2.0%) | 2L (2.0%) | 1A2gviii (1.9%) | 2D3b (1.7%) | 1A4ci (1.5%) | 1A3bi (1.5%) | 5E (1.4%) | 3B4gi (1.2%) | 1A4ai (1.1%) | 3B4gii (1.0%) | 80.5% |
| TSP | 2020 | 1A4bi (22.5%) | 3Dc (16.4%) | 2A5b (13.0%) | 2A5a (5.0%) | 2D3b (4.2%) | 1A3bvii (3.1%) | 3B3 (2.7%) | 1A3bvi (2.7%) | 2L (2.5%) | 3B4gi (2.1%) | 2B10a (2.0%) | 5C2 (1.9%) | 1A1a (1.5%) | 1A2gviii (1.2%) | 80.9% | |||
| BC | 2020 | 1A4bi (31.0%) | 5C2 (14.7%) | 1A2f (12.2%) | 1A3bi (9.1%) | 1A4cii (4.0%) | 1A2gviii (3.6%) | 1A3bii (3.3%) | 1A3biii (3.0%) | 81.0% | |||||||||
| CO | 2020 | 1A4bi (41.0%) | 1A3bi (11.9%) | 2C1 (7.0%) | 1A2a (4.4%) | 5C2 (4.3%) | 1A4bii (2.8%) | 2C3 (2.8%) | 1A2gvii (2.4%) | 1A3biv (2.4%) | 1A1a (2.0%) | 80.9% | |||||||
| Pb | 2020 | 2C1 (27.3%) | 1A3bvi (14.9%) | 1A4bi (8.1%) | 1A2f (7.2%) | 1A1a (6.0%) | 2C5 (4.4%) | 1A2a (3.0%) | 1A4ai (2.9%) | 2A3 (2.7%) | 1A3bi (2.6%) | 2G (2.2%) | 81.5% | ||||||
| Cd | 2020 | 1A4bi (20.2%) | 2C7a (11.3%) | 2C1 (10.9%) | 1A1a (8.3%) | 2G (7.9%) | 1A2gviii (5.2%) | 2C6 (4.7%) | 1A1b (4.2%) | 1A2d (2.5%) | 2A3 (2.3%) | 1A2f (2.2%) | 5C2 (2.0%) | 81.7% | |||||
| Hg | 2020 | 1A1a (31.9%) | 2C1 (14.5%) | 1A2f (6.9%) | 1A4bi (6.1%) | 5C1bv (3.8%) | 1A2a (2.8%) | 2A1 (2.5%) | 1A2gviii (2.4%) | 1A3bi (2.3%) | 2C6 (2.1%) | 1A2d (2.0%) | 1B2aiv (1.7%) | 1A1b (1.6%) | 80.7% | ||||
| As | 2020 | 1A1a (30.2%) | 5C2 (13.5%) | 2C1 (10.0%) | 2C7a (6.0%) | 1A4bi (5.4%) | 2A3 (4.0%) | 1A2f (4.0%) | 1A1b (2.8%) | 1A2b (2.5%) | 1A3bvi (2.3%) | 80.8% | |||||||
| Cr | 2020 | 1A3bvi (17.4%) | 2C1 (16.6%) | 1A4bi (11.1%) | 1A1a (11.0%) | 1A3c (6.5%) | 2C7a (6.0%) | 1A2f (3.9%) | 2G (3.2%) | 5C2 (2.7%) | 1A1b (2.6%) | 81.0% | |||||||
| Cu | 2020 | 1A3bvi (56.7%) | 2G (18.8%) | 1A3c (7.0%) | 82.5% | ||||||||||||||
| Ni | 2020 | 1A1b (18.8%) | 1A4bi (15.9%) | 1A1a (13.1%) | 1A3c (8.1%) | 2C1 (6.4%) | 1A3dii (6.3%) | 1A2gviii (3.6%) | 1A2f (3.5%) | 2G (3.3%) | 1A4ai (3.1%) | 82.1% | |||||||
| Se | 2020 | 1A1a (55.8%) | 2A3 (13.5%) | 1A2f (8.9%) | 1A4bi (4.9%) | 83.2% | |||||||||||||
| Zn | 2020 | 2C1 (20.6%) | 1A4bi (16.4%) | 1A3bvi (14.9%) | 2G (6.3%) | 1A1a (6.3%) | 5C2 (5.8%) | 1A2gviii (5.5%) | 2C6 (4.5%) | 80.2% | |||||||||
| DIOX | 2020 | 1A4bi (37.7%) | 5E (12.8%) | 2C1 (12.1%) | 5C2 (9.6%) | 1A1a (3.1%) | 1A3bi (2.5%) | 1A2b (2.1%) | 5C1biii (2.1%) | 82.0% | |||||||||
| PAH | 2020 | 1A4bi (76.1%) | 2C1 (5.2%) | 81.3% | |||||||||||||||
| HCB | 2020 | 1A1a (27.3%) | 3Df (26.2%) | 1A4bi (15.5%) | 2B10a (7.3%) | 2C7a (4.1%) | 80.4% | ||||||||||||
| PCB | 2020 | 2K (66.6%) | 2C1 (11.0%) | 1A1a (6.6%) | 84.2% | ||||||||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2010 | 1A3biii (18.8%) | 1A1a (16.1%) | 1A3bi (15.9%) | 1A3bii (4.7%) | 1A4bi (4.6%) | 1A4cii (4.4%) | 1A3dii (4.0%) | 3Da1 (3.5%) | 1A2f (3.1%) | 1A2gviii (2.5%) | 1A2gvii (2.3%) | 1A4ai (2.1%) | 82.0% | ||||||
| NMVOC | 2010 | 1A4bi (13.0%) | 2D3d (10.9%) | 2D3a (9.7%) | 3B1a (6.1%) | 1A3bi (5.4%) | 3B1b (4.9%) | 2D3i (4.8%) | 2D3g (3.8%) | 2H2 (3.4%) | 2D3h (3.1%) | 3Da2a (2.4%) | 3De (2.4%) | 1A3bv (2.1%) | 1A3biv (2.1%) | 1B1a (1.9%) | 1B2av (1.7%) | 2D3e (1.7%) | 1B2aiv (1.2%) | 80.7% |
| SOx | 2010 | 1A1a (54.5%) | 1A4bi (8.4%) | 1A1b (6.3%) | 1A2f (3.6%) | 1A2a (2.6%) | 1A2gviii (2.5%) | 1B2aiv (2.4%) | 80.3% | |||||||||||
| NH3 | 2010 | 3Da2a (23.8%) | 3Da1 (15.6%) | 3B3 (11.7%) | 3B1b (11.3%) | 3B1a (10.9%) | 3Da3 (6.9%) | 80.1% | ||||||||||||
| PM2.5 | 2010 | 1A4bi (51.8%) | 1A2f (4.0%) | 1A3bi (3.6%) | 5C2 (3.6%) | 1A1a (3.2%) | 1A4ci (2.2%) | 1A3bvi (2.1%) | 1A3biii (2.1%) | 1A4cii (1.9%) | 1A4ai (1.8%) | 1A3bii (1.8%) | 5E (1.5%) | 1A2gviii (1.5%) | 81.2% | |||||
| PM10 | 2010 | 1A4bi (39.2%) | 3Dc (6.3%) | 2A5b (5.6%) | 1A1a (4.1%) | 2A5a (2.9%) | 1A3bvi (2.8%) | 5C2 (2.7%) | 1A3bi (2.6%) | 1A3bvii (2.1%) | 2L (1.8%) | 1A4ci (1.7%) | 1A3biii (1.5%) | 1A4ai (1.5%) | 1A4cii (1.4%) | 1A3bii (1.3%) | 1A2gviii (1.2%) | 2C1 (1.1%) | 2D3b (1.1%) | 81.1% |
| TSP | 2010 | 1A4bi (25.3%) | 3Dc (13.4%) | 2A5b (12.1%) | 2A5a (4.1%) | 1A1a (3.4%) | 2D3b (3.0%) | 2B10a (3.0%) | 1A3bvii (2.6%) | 2L (2.3%) | 1A3bvi (2.3%) | 3B3 (2.3%) | 5C2 (1.7%) | 3B4gi (1.6%) | 1A3bi (1.6%) | 1B1a (1.3%) | 1A4ci (1.1%) | 81.1% | ||
| BC | 2010 | 1A4bi (27.7%) | 1A3bi (15.8%) | 5C2 (10.8%) | 1A3bii (8.0%) | 1A3biii (7.4%) | 1A4cii (6.7%) | 1A2gvii (3.2%) | 2D3c (2.4%) | 81.9% | ||||||||||
| CO | 2010 | 1A4bi (38.1%) | 1A3bi (18.3%) | 2C1 (8.1%) | 1A2a (4.6%) | 5C2 (3.2%) | 1A3biv (3.1%) | 1A3bii (2.2%) | 1A4bii (1.9%) | 1A3biii (1.8%) | 81.2% | |||||||||
| Pb | 2010 | 2C1 (32.6%) | 1A3bvi (9.4%) | 2C5 (7.6%) | 1A4bi (7.0%) | 1A1a (6.9%) | 1A3bi (6.3%) | 1A2a (5.5%) | 1A2f (4.7%) | 80.0% | ||||||||||
| Cd | 2010 | 1A4bi (18.3%) | 1A1a (13.4%) | 2C1 (13.3%) | 2C7a (9.2%) | 2G (8.1%) | 1A1b (4.2%) | 2C6 (4.0%) | 1A2gviii (2.7%) | 1A2a (2.5%) | 2B10a (2.2%) | 1A2f (2.0%) | 1A2d (1.9%) | 81.8% | ||||||
| Hg | 2010 | 1A1a (37.3%) | 2C1 (12.4%) | 1A2f (5.5%) | 1A4bi (5.3%) | 2B10a (4.4%) | 1A2a (2.9%) | 5C1bv (2.8%) | 1A1c (2.0%) | 1A2gviii (2.0%) | 1B2d (1.9%) | 1A3bi (1.8%) | 2A1 (1.8%) | 80.1% | ||||||
| As | 2010 | 1A1a (30.6%) | 2C1 (19.8%) | 1A2f (9.1%) | 5C2 (7.7%) | 1A4bi (4.5%) | 2C7a (3.9%) | 1A1b (2.8%) | 1A2a (2.6%) | 80.9% | ||||||||||
| Cr | 2010 | 2C1 (18.0%) | 1A3bvi (14.6%) | 1A1a (13.9%) | 1A4bi (11.2%) | 1A3c (5.5%) | 2C7a (4.2%) | 1A2f (4.1%) | 2C2 (3.0%) | 1A2a (3.0%) | 2G (2.9%) | 80.6% | ||||||||
| Cu | 2010 | 1A3bvi (53.7%) | 2G (18.6%) | 1A3c (6.6%) | 1A3bi (3.9%) | 82.8% | ||||||||||||||
| Ni | 2010 | 1A1b (23.0%) | 1A1a (18.8%) | 1A4bi (8.9%) | 1A3dii (6.0%) | 2C1 (5.9%) | 1A3c (5.2%) | 1A2gviii (4.6%) | 1A2c (3.7%) | 1A2f (3.3%) | 1A4ai (3.2%) | 82.6% | ||||||||
| Se | 2010 | 1A1a (62.8%) | 2A3 (15.0%) | 1A2f (5.5%) | 83.3% | |||||||||||||||
| Zn | 2010 | 2C1 (22.2%) | 1A4bi (17.2%) | 1A3bvi (13.5%) | 1A1a (6.9%) | 2G (6.1%) | 5C2 (5.5%) | 1A2gviii (5.4%) | 1A2a (3.4%) | 80.1% | ||||||||||
| DIOX | 2010 | 1A4bi (37.6%) | 2C1 (12.4%) | 5E (9.7%) | 5C2 (8.4%) | 1A3bi (4.2%) | 1A2a (3.1%) | 1A1a (2.8%) | 5C1biii (2.2%) | 80.5% | ||||||||||
| PAH | 2010 | 1A4bi (77.4%) | 2C1 (5.2%) | 82.6% | ||||||||||||||||
| HCB | 2010 | 3Df (36.6%) | 1A1a (17.9%) | 1A4bi (16.1%) | 2C3 (5.0%) | 2C1 (3.7%) | 2A1 (2.9%) | 82.3% | ||||||||||||
| PCB | 2010 | 2K (67.3%) | 2C1 (10.8%) | 1A1a (5.9%) | 84.0% | |||||||||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2005 | 1A3biii (20.4%) | 1A1a (17.6%) | 1A3bi (15.3%) | 1A4cii (5.0%) | 1A3bii (4.3%) | 1A3dii (3.6%) | 1A4bi (3.6%) | 1A2f (3.5%) | 3Da1 (2.9%) | 1A2gvii (2.9%) | 1A2gviii (2.3%) | 81.5% | |||||||||
| NMVOC | 2005 | 2D3d (13.0%) | 1A4bi (10.1%) | 1A3bi (9.1%) | 2D3a (7.8%) | 3B1a (5.1%) | 2D3i (4.2%) | 3B1b (4.1%) | 2D3g (3.5%) | 2H2 (2.9%) | 1A3biv (2.8%) | 1A3bv (2.8%) | 2D3h (2.8%) | 3Da2a (2.2%) | 1B2ai (2.1%) | 3De (2.1%) | 1B1a (2.0%) | 1B2av (1.9%) | 2D3e (1.9%) | 80.4% | ||
| SOx | 2005 | 1A1a (63.8%) | 1A1b (5.9%) | 1A4bi (5.4%) | 1A2f (3.1%) | 1A2a (2.3%) | 80.5% | |||||||||||||||
| NH3 | 2005 | 3Da2a (24.3%) | 3Da1 (14.9%) | 3B3 (12.9%) | 3B1b (10.9%) | 3B1a (10.8%) | 3Da3 (6.7%) | 80.5% | ||||||||||||||
| PM2.5 | 2005 | 1A4bi (45.2%) | 1A1a (5.4%) | 1A3bi (4.1%) | 1A3biii (3.6%) | 1A4cii (3.0%) | 5C2 (2.9%) | 1A3bii (2.6%) | 1A3bvi (2.0%) | 1A4ci (1.9%) | 2C1 (1.7%) | 1A2gviii (1.6%) | 1A4ai (1.5%) | 5E (1.5%) | 1A3dii (1.5%) | 1A2gvii (1.5%) | 80.0% | |||||
| PM10 | 2005 | 1A4bi (32.3%) | 1A1a (6.6%) | 2A5b (6.2%) | 3Dc (5.9%) | 2A5a (3.4%) | 1A3bi (2.8%) | 1A3bvi (2.5%) | 1A3biii (2.4%) | 1A4cii (2.1%) | 5C2 (2.1%) | 1A3bvii (2.0%) | 1A3bii (1.8%) | 2C1 (1.6%) | 2L (1.5%) | 1A4ci (1.4%) | 1A4ai (1.2%) | 1A2f (1.2%) | 1A2gviii (1.2%) | 2G (1.1%) | 2D3b (1.1%) | 80.4% |
| TSP | 2005 | 1A4bi (20.3%) | 2A5b (13.1%) | 3Dc (11.9%) | 1A1a (5.8%) | 2A5a (4.7%) | 2B10a (3.4%) | 2D3b (3.0%) | 1A3bvii (2.3%) | 3B3 (2.2%) | 1A3bvi (2.0%) | 2L (2.0%) | 1A3bi (1.6%) | 2C1 (1.5%) | 3B4gi (1.4%) | 1A3biii (1.4%) | 1B1a (1.3%) | 5C2 (1.3%) | 1A4cii (1.3%) | 80.7% | ||
| BC | 2005 | 2D3c (87.5%) | 87.5% | |||||||||||||||||||
| CO | 2005 | 1A4bi (28.0%) | 1A3bi (27.8%) | 2C1 (7.3%) | 1A2a (5.9%) | 1A3biv (4.2%) | 1A3bii (3.5%) | 5C2 (2.2%) | 1A3biii (1.9%) | 80.8% | ||||||||||||
| Pb | 2005 | 2C1 (33.4%) | 1A3bi (11.6%) | 1A1a (8.4%) | 1A3bvi (7.2%) | 1A2f (6.1%) | 1A2a (5.5%) | 1A4bi (4.7%) | 2G (2.6%) | 1A4ai (2.5%) | 82.2% | |||||||||||
| Cd | 2005 | 1A1a (19.1%) | 2C1 (14.2%) | 1A4bi (12.7%) | 2C7a (8.7%) | 2G (7.0%) | 1A2f (5.1%) | 1A1b (3.5%) | 2C6 (3.4%) | 1A2a (3.1%) | 1A4ai (2.8%) | 1A2gviii (2.1%) | 81.8% | |||||||||
| Hg | 2005 | 1A1a (36.9%) | 2C1 (13.5%) | 2B10a (7.2%) | 1A2f (5.9%) | 1A4bi (3.8%) | 1A2a (2.8%) | 1A4ai (2.6%) | 1B2d (2.5%) | 5C1bv (2.1%) | 1A1c (1.9%) | 2A1 (1.5%) | 80.7% | |||||||||
| As | 2005 | 1A1a (30.3%) | 2C1 (18.4%) | 1A2f (14.8%) | 5C2 (6.0%) | 2C7a (4.2%) | 1A4bi (3.6%) | 1A1b (3.0%) | 80.3% | |||||||||||||
| Cr | 2005 | 2C1 (20.6%) | 1A1a (15.4%) | 1A3bvi (12.1%) | 1A4bi (8.8%) | 1A2f (5.4%) | 1A3c (4.8%) | 2C7a (4.7%) | 1A2a (2.8%) | 1A1b (2.6%) | 2C2 (2.4%) | 2G (2.4%) | 82.1% | |||||||||
| Cu | 2005 | 1A3bvi (51.7%) | 2G (18.0%) | 1A3c (6.9%) | 1A3bi (3.7%) | 80.3% | ||||||||||||||||
| Ni | 2005 | 1A1a (23.1%) | 1A1b (22.2%) | 1A4ai (7.4%) | 1A4bi (6.6%) | 1A2gviii (5.9%) | 2C1 (5.0%) | 1A3dii (4.3%) | 1A3c (3.6%) | 1A2c (3.5%) | 81.4% | |||||||||||
| Se | 2005 | 1A1a (58.6%) | 2A3 (21.9%) | 80.5% | ||||||||||||||||||
| Zn | 2005 | 2C1 (24.8%) | 1A4bi (14.3%) | 1A3bvi (12.8%) | 1A1a (7.3%) | 2G (5.8%) | 1A2gviii (5.5%) | 1A2a (4.3%) | 5C2 (4.2%) | 1A2f (2.3%) | 81.3% | |||||||||||
| DIOX | 2005 | 1A4bi (22.4%) | 5C1biii (17.2%) | 2C1 (10.9%) | 1A1a (10.9%) | 5E (7.6%) | 5C2 (6.0%) | 1A2a (4.4%) | 5C1bi (3.1%) | 82.5% | ||||||||||||
| PAH | 2005 | 1A4bi (70.7%) | 2C1 (8.1%) | 1A4ci (3.8%) | 82.6% | |||||||||||||||||
| HCB | 2005 | 2B10a (39.9%) | 3Df (20.9%) | 1A1a (13.0%) | 1A4bi (6.3%) | 80.2% | ||||||||||||||||
| PCB | 2005 | 2K (66.5%) | 2C1 (10.6%) | 5E (6.4%) | 83.5% | |||||||||||||||||