Review Stage 2: Synthesis and Assessment Country report
KEY SOURCE ANALYSIS FOR
CLRTAP
Party: WEST Submission year: 2021
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 2019, 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 | 2019 | 1A3bi (18.5%) | 1A1a (11.9%) | 1A3biii (11.9%) | 1A3bii (7.3%) | 1A3dii (5.1%) | 3Da1 (5.0%) | 1A4bi (5.0%) | 1A4cii (3.4%) | 1A2f (3.2%) | 1A2gviii (3.2%) | 3Da2a (2.4%) | 1A4ai (2.4%) | 1A1c (1.9%) | 81.2% | ||||||
| NMVOC | 2019 | 1A4bi (11.6%) | 2D3a (10.6%) | 2D3d (10.4%) | 3B1a (7.3%) | 3B1b (5.6%) | 2H2 (4.6%) | 2D3g (4.6%) | 2D3i (4.4%) | 3De (3.1%) | 1A3bi (3.0%) | 2D3h (2.7%) | 3Da2a (2.7%) | 1A3bv (2.3%) | 2D3e (2.0%) | 1B1a (1.5%) | 1B2av (1.5%) | 1A3biv (1.4%) | 1B2ai (1.3%) | 80.7% | |
| SOx | 2019 | 1A1a (43.8%) | 1A4bi (9.4%) | 1A2f (5.0%) | 1A1b (4.8%) | 1A2gviii (3.5%) | 1A2a (3.5%) | 1B2aiv (3.5%) | 1A3dii (3.2%) | 1A2c (2.5%) | 2B10a (2.4%) | 81.6% | |||||||||
| NH3 | 2019 | 3Da2a (23.8%) | 3Da1 (16.3%) | 3B1b (11.3%) | 3B1a (11.0%) | 3B3 (10.8%) | 3Da3 (6.8%) | 3B4gii (3.1%) | 83.1% | ||||||||||||
| PM2.5 | 2019 | 1A4bi (49.3%) | 5C2 (4.6%) | 1A2f (4.2%) | 1A3bvi (3.2%) | 1A2gviii (3.0%) | 1A3bi (2.4%) | 1A1a (2.3%) | 5E (1.9%) | 1A3bvii (1.9%) | 2G (1.5%) | 1A3dii (1.4%) | 3F (1.3%) | 1A4cii (1.3%) | 2A5b (1.2%) | 2C1 (1.2%) | 80.7% | ||||
| PM10 | 2019 | 1A4bi (34.6%) | 3Dc (8.6%) | 2A5b (5.1%) | 1A3bvi (3.9%) | 2A5a (3.9%) | 5C2 (3.3%) | 1A3bvii (3.1%) | 2L (2.5%) | 2D3b (2.2%) | 1A1a (2.1%) | 1A2gviii (1.9%) | 1A3bi (1.6%) | 1A2f (1.4%) | 5E (1.3%) | 2C1 (1.1%) | 3B4gi (1.1%) | 2G (1.1%) | 3B4gii (1.0%) | 1A3dii (1.0%) | 80.9% |
| TSP | 2019 | 1A4bi (20.9%) | 3Dc (16.6%) | 2A5b (10.7%) | 2D3b (5.8%) | 2A5a (5.0%) | 1A3bvii (3.4%) | 2L (3.0%) | 1A3bvi (3.0%) | 3B3 (2.6%) | 3B4gi (2.0%) | 5C2 (2.0%) | 1A2f (1.8%) | 2B10a (1.8%) | 1A1a (1.5%) | 80.1% | |||||
| BC | 2019 | 1A4bi (28.4%) | 3F (12.6%) | 1A2f (11.1%) | 1A3bi (8.6%) | 5C2 (8.0%) | 1A4cii (3.9%) | 1A3biii (3.7%) | 1A3bii (3.7%) | 80.1% | |||||||||||
| CO | 2019 | 1A4bi (38.4%) | 1A3bi (14.4%) | 2C1 (7.8%) | 1A2a (4.7%) | 5C2 (3.9%) | 1A4bii (2.7%) | 2C3 (2.5%) | 1A3biv (2.5%) | 1A2gvii (2.3%) | 1A2f (2.0%) | 81.3% | |||||||||
| Pb | 2019 | 2C1 (29.6%) | 1A3bvi (14.6%) | 1A4bi (7.6%) | 1A2f (6.9%) | 1A1a (6.1%) | 1A2a (4.7%) | 2C5 (3.5%) | 2G (3.1%) | 1A4ai (2.7%) | 2A3 (2.2%) | 81.0% | |||||||||
| Cd | 2019 | 1A4bi (18.6%) | 2C1 (12.1%) | 2C7a (10.0%) | 1A1a (8.8%) | 2G (7.9%) | 2C6 (5.3%) | 1A2gviii (4.5%) | 1A1b (3.8%) | 5C2 (3.4%) | 3F (3.3%) | 1A2d (2.3%) | 80.1% | ||||||||
| Hg | 2019 | 1A1a (33.8%) | 2C1 (15.3%) | 1A2f (6.8%) | 1A4bi (5.7%) | 5C1bv (3.2%) | 1A2a (3.0%) | 2A1 (2.4%) | 1A3bi (2.3%) | 1A2gviii (2.2%) | 2C6 (1.9%) | 1A2d (1.9%) | 1A1b (1.6%) | 80.0% | |||||||
| As | 2019 | 1A1a (28.9%) | 5C2 (20.4%) | 2C1 (8.9%) | 1A4bi (5.3%) | 2C7a (4.5%) | 1A2f (3.5%) | 2A3 (3.1%) | 1A2a (2.4%) | 1A1b (2.3%) | 1A2b (2.3%) | 81.8% | |||||||||
| Cr | 2019 | 1A3bvi (17.8%) | 2C1 (17.0%) | 1A1a (12.1%) | 1A4bi (10.2%) | 1A3c (6.2%) | 2C7a (5.3%) | 1A2f (3.7%) | 2G (3.4%) | 5C2 (2.5%) | 1A1b (2.4%) | 80.5% | |||||||||
| Cu | 2019 | 1A3bvi (56.6%) | 2G (19.3%) | 1A3c (6.5%) | 82.4% | ||||||||||||||||
| Ni | 2019 | 1A1b (17.7%) | 1A4bi (14.8%) | 1A1a (12.7%) | 1A3c (7.9%) | 2C1 (7.7%) | 1A3dii (7.2%) | 1A2gviii (3.8%) | 2G (3.4%) | 1A4ai (3.3%) | 1A2f (2.9%) | 81.4% | |||||||||
| Se | 2019 | 1A1a (55.8%) | 2A3 (14.7%) | 1A2f (8.6%) | 1A4bi (4.1%) | 83.2% | |||||||||||||||
| Zn | 2019 | 2C1 (20.4%) | 1A3bvi (15.0%) | 1A4bi (14.3%) | 5C2 (6.8%) | 2G (6.3%) | 2C6 (6.2%) | 1A1a (5.4%) | 1A2gviii (4.9%) | 1A3bi (2.2%) | 81.6% | ||||||||||
| DIOX | 2019 | 1A4bi (31.6%) | 3F (21.7%) | 2C1 (11.4%) | 5E (9.4%) | 5C2 (3.8%) | 1A1a (2.5%) | 80.3% | |||||||||||||
| PAH | 2019 | 1A4bi (48.7%) | 3F (35.7%) | 84.4% | |||||||||||||||||
| HCB | 2019 | 3Df (34.9%) | 1A1a (23.4%) | 1A4bi (14.8%) | 2B10a (7.0%) | 80.1% | |||||||||||||||
| PCB | 2019 | 2K (64.3%) | 2C1 (13.4%) | 1A1a (6.9%) | 84.7% | ||||||||||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2010 | 1A3biii (18.6%) | 1A1a (16.0%) | 1A3bi (15.8%) | 1A3bii (5.0%) | 1A4bi (4.6%) | 1A4cii (4.4%) | 1A3dii (4.2%) | 3Da1 (3.5%) | 1A2f (3.1%) | 1A2gviii (2.5%) | 1A2gvii (2.3%) | 80.1% | ||||||||
| NMVOC | 2010 | 1A4bi (13.2%) | 2D3d (11.0%) | 2D3a (9.5%) | 3B1a (6.0%) | 1A3bi (5.5%) | 3B1b (5.0%) | 2D3i (4.8%) | 2D3g (3.8%) | 2H2 (3.4%) | 2D3h (3.3%) | 3De (2.4%) | 3Da2a (2.1%) | 1A3bv (2.1%) | 1A3biv (2.1%) | 1B1a (2.0%) | 2D3e (1.7%) | 1B2av (1.6%) | 1B2aiv (1.3%) | 81.0% | |
| SOx | 2010 | 1A1a (55.3%) | 1A4bi (7.4%) | 1A1b (6.3%) | 1A2f (3.4%) | 1A2a (2.6%) | 1A2gviii (2.6%) | 1B2aiv (2.4%) | 1A2c (2.4%) | 82.3% | |||||||||||
| NH3 | 2010 | 3Da2a (23.9%) | 3Da1 (15.3%) | 3B3 (12.0%) | 3B1b (11.2%) | 3B1a (10.9%) | 3Da3 (6.7%) | 80.0% | |||||||||||||
| PM2.5 | 2010 | 1A4bi (49.3%) | 1A2f (4.5%) | 1A3bi (3.9%) | 1A1a (3.4%) | 5C2 (3.1%) | 1A3biii (2.3%) | 1A3bvi (2.3%) | 1A4cii (2.1%) | 1A3bii (2.1%) | 1A2gviii (1.8%) | 5E (1.5%) | 2G (1.5%) | 1A3bvii (1.3%) | 1A3dii (1.3%) | 80.4% | |||||
| PM10 | 2010 | 1A4bi (36.9%) | 3Dc (6.8%) | 2A5b (5.0%) | 1A1a (4.4%) | 2A5a (3.1%) | 1A3bvi (3.0%) | 1A3bi (2.7%) | 5C2 (2.4%) | 1A3bvii (2.3%) | 2D3b (2.2%) | 2L (1.9%) | 1A3biii (1.6%) | 1A4cii (1.5%) | 1A3bii (1.5%) | 1A2gviii (1.3%) | 2C1 (1.2%) | 2G (1.1%) | 5E (1.1%) | 1B1a (1.1%) | 81.0% |
| TSP | 2010 | 1A4bi (23.3%) | 3Dc (13.7%) | 2A5b (10.6%) | 2D3b (6.2%) | 2A5a (4.2%) | 1A1a (3.5%) | 2B10a (3.3%) | 1A3bvii (2.6%) | 2L (2.4%) | 1A3bvi (2.3%) | 3B3 (2.3%) | 3B4gi (1.6%) | 1A3bi (1.5%) | 5C2 (1.4%) | 1B1a (1.3%) | 80.3% | ||||
| BC | 2010 | 1A4bi (26.2%) | 1A3bi (14.4%) | 3F (12.0%) | 1A3bii (8.3%) | 1A3biii (7.3%) | 1A4cii (6.5%) | 5C2 (5.3%) | 1A2gvii (3.1%) | 83.1% | |||||||||||
| CO | 2010 | 1A4bi (37.9%) | 1A3bi (18.9%) | 2C1 (8.2%) | 1A2a (4.7%) | 1A3biv (3.0%) | 5C2 (2.5%) | 1A3bii (2.4%) | 1A4bii (1.9%) | 1A3biii (1.9%) | 81.2% | ||||||||||
| Pb | 2010 | 2C1 (32.6%) | 1A3bvi (9.5%) | 1A1a (8.4%) | 1A4bi (7.3%) | 1A3bi (5.7%) | 1A2a (5.5%) | 1A2f (5.0%) | 2C5 (3.4%) | 1A2b (3.3%) | 80.8% | ||||||||||
| Cd | 2010 | 1A4bi (17.3%) | 2C1 (13.4%) | 1A1a (13.1%) | 2C7a (8.7%) | 2G (7.5%) | 1A1b (4.1%) | 2C6 (3.9%) | 3F (3.2%) | 1A2gviii (2.6%) | 5C2 (2.6%) | 1A2a (2.5%) | 2B10a (2.1%) | 81.1% | |||||||
| Hg | 2010 | 1A1a (37.0%) | 2C1 (12.4%) | 1A2f (5.8%) | 1A4bi (5.4%) | 2B10a (4.5%) | 1A2a (2.9%) | 5C1bv (2.5%) | 1A1c (2.0%) | 1A2gviii (2.0%) | 1B2d (2.0%) | 2A1 (1.9%) | 1A1b (1.7%) | 80.1% | |||||||
| As | 2010 | 1A1a (31.3%) | 2C1 (17.8%) | 5C2 (11.8%) | 1A2f (8.4%) | 1A4bi (4.8%) | 2C7a (3.3%) | 1A1b (2.5%) | 1A2a (2.4%) | 82.3% | |||||||||||
| Cr | 2010 | 2C1 (17.6%) | 1A3bvi (14.5%) | 1A1a (14.4%) | 1A4bi (10.9%) | 1A3c (5.4%) | 1A2f (4.8%) | 2C7a (4.1%) | 1A2a (3.0%) | 2C2 (3.0%) | 1A1b (2.8%) | 80.5% | |||||||||
| Cu | 2010 | 1A3bvi (54.0%) | 2G (17.7%) | 1A3c (6.6%) | 1A3bi (2.8%) | 81.0% | |||||||||||||||
| Ni | 2010 | 1A1b (22.9%) | 1A1a (18.8%) | 1A4bi (9.0%) | 1A3dii (6.4%) | 2C1 (5.9%) | 1A3c (5.1%) | 1A2gviii (4.5%) | 1A2c (4.3%) | 1A4ai (3.3%) | 80.1% | ||||||||||
| Se | 2010 | 1A1a (51.9%) | 2A3 (16.7%) | 1A2f (13.5%) | 82.1% | ||||||||||||||||
| Zn | 2010 | 2C1 (21.4%) | 1A4bi (16.1%) | 1A3bvi (13.5%) | 1A1a (7.2%) | 5C2 (6.0%) | 2G (5.5%) | 1A2gviii (5.2%) | 1A2a (3.3%) | 1A2f (2.2%) | 80.4% | ||||||||||
| DIOX | 2010 | 1A4bi (32.1%) | 3F (22.5%) | 2C1 (10.3%) | 5E (7.2%) | 5C2 (3.5%) | 1A3bi (3.0%) | 1A2a (2.6%) | 81.1% | ||||||||||||
| PAH | 2010 | 1A4bi (49.8%) | 3F (36.2%) | 86.0% | |||||||||||||||||
| HCB | 2010 | 3Df (31.4%) | 1A1a (21.0%) | 1A4bi (17.8%) | 2C3 (5.3%) | 2C1 (4.0%) | 2A1 (3.2%) | 82.7% | |||||||||||||
| PCB | 2010 | 2K (66.1%) | 2C1 (11.7%) | 1A1a (6.2%) | 84.0% | ||||||||||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2005 | 1A3biii (20.3%) | 1A1a (17.6%) | 1A3bi (15.5%) | 1A4cii (5.0%) | 1A3bii (4.3%) | 1A3dii (3.8%) | 1A4bi (3.6%) | 1A2f (3.6%) | 1A2gvii (2.9%) | 3Da1 (2.9%) | 1A2gviii (2.3%) | 81.7% | |||||||||
| NMVOC | 2005 | 2D3d (13.1%) | 1A4bi (10.2%) | 1A3bi (9.2%) | 2D3a (7.7%) | 3B1a (5.1%) | 2D3i (4.2%) | 3B1b (4.1%) | 2D3g (3.5%) | 2H2 (2.9%) | 1A3biv (2.9%) | 1A3bv (2.8%) | 2D3h (2.8%) | 1B2ai (2.1%) | 3De (2.1%) | 1B1a (2.0%) | 3Da2a (1.9%) | 2D3e (1.9%) | 1B2av (1.9%) | 80.4% | ||
| SOx | 2005 | 1A1a (63.0%) | 1A1b (6.0%) | 1A4bi (5.1%) | 1A2f (3.0%) | 1A2a (2.4%) | 1A2gviii (2.4%) | 81.9% | ||||||||||||||
| NH3 | 2005 | 3Da2a (24.3%) | 3Da1 (14.6%) | 3B3 (13.2%) | 3B1a (10.9%) | 3B1b (10.8%) | 3Da3 (6.5%) | 80.3% | ||||||||||||||
| PM2.5 | 2005 | 1A4bi (42.2%) | 1A1a (5.6%) | 1A3bi (4.4%) | 1A3biii (3.8%) | 1A4cii (3.3%) | 1A3bii (3.0%) | 5C2 (2.5%) | 1A3bvi (2.1%) | 2C1 (1.8%) | 1A3dii (1.8%) | 1A2gviii (1.8%) | 1A2gvii (1.6%) | 1A2f (1.6%) | 2G (1.5%) | 5E (1.5%) | 2A5b (1.3%) | 3F (1.3%) | 81.2% | |||
| PM10 | 2005 | 1A4bi (30.1%) | 1A1a (6.7%) | 3Dc (6.3%) | 2A5b (5.7%) | 2A5a (3.6%) | 1A3bi (2.9%) | 2D3b (2.7%) | 1A3bvi (2.6%) | 1A3biii (2.5%) | 1A4cii (2.2%) | 1A3bvii (2.1%) | 1A3bii (2.0%) | 5C2 (1.8%) | 2C1 (1.7%) | 2L (1.5%) | 1A2gviii (1.3%) | 1A2f (1.3%) | 1A3dii (1.2%) | 1A2gvii (1.2%) | 2G (1.1%) | 80.4% |
| TSP | 2005 | 1A4bi (18.5%) | 3Dc (12.0%) | 2A5b (11.6%) | 2D3b (7.5%) | 1A1a (5.8%) | 2A5a (4.7%) | 2B10a (3.8%) | 1A3bvii (2.3%) | 3B3 (2.2%) | 1A3bvi (2.0%) | 2L (2.0%) | 1A3bi (1.6%) | 2C1 (1.4%) | 3B4gi (1.4%) | 1A3biii (1.4%) | 1B1a (1.3%) | 1A4cii (1.3%) | 80.7% | |||
| BC | 2005 | 1A4bi (20.3%) | 1A3bi (13.9%) | 3F (11.9%) | 1A3biii (10.2%) | 1A3bii (9.7%) | 1A4cii (8.7%) | 1A2gvii (4.7%) | 5C2 (3.9%) | 83.4% | ||||||||||||
| CO | 2005 | 1A3bi (28.3%) | 1A4bi (28.1%) | 2C1 (7.4%) | 1A2a (5.9%) | 1A3biv (3.9%) | 1A3bii (3.3%) | 1A3biii (1.9%) | 2C3 (1.8%) | 80.6% | ||||||||||||
| Pb | 2005 | 2C1 (31.5%) | 1A3bi (11.2%) | 1A1a (8.9%) | 1A3bvi (7.0%) | 1A2f (6.0%) | 1A2a (5.6%) | 1A2b (4.6%) | 1A4bi (4.6%) | 2G (2.5%) | 82.0% | |||||||||||
| Cd | 2005 | 1A1a (18.9%) | 2C1 (14.5%) | 1A4bi (12.1%) | 2G (6.8%) | 1A2f (5.4%) | 2C7a (5.0%) | 1A1b (3.6%) | 1A2a (3.6%) | 2C6 (3.3%) | 3F (3.2%) | 1A4ai (2.7%) | 1A2b (2.6%) | 81.5% | ||||||||
| Hg | 2005 | 1A1a (36.2%) | 2C1 (13.1%) | 2B10a (7.3%) | 1A2f (6.4%) | 1A4bi (3.9%) | 1A2a (3.0%) | 1A4ai (2.7%) | 1B2d (2.5%) | 5C1bv (2.0%) | 1A1c (2.0%) | 2A1 (1.6%) | 80.7% | |||||||||
| As | 2005 | 1A1a (28.4%) | 2C1 (16.5%) | 1A2f (13.8%) | 5C2 (8.3%) | 1A2b (7.0%) | 1A4bi (3.7%) | 2C7a (2.8%) | 80.7% | |||||||||||||
| Cr | 2005 | 2C1 (20.4%) | 1A1a (15.4%) | 1A3bvi (12.1%) | 1A4bi (8.6%) | 1A2f (6.5%) | 1A3c (4.8%) | 2C7a (3.6%) | 1A2a (3.1%) | 1A1b (2.7%) | 2C2 (2.4%) | 2G (2.3%) | 81.7% | |||||||||
| Cu | 2005 | 1A3bvi (50.8%) | 2G (16.8%) | 1A3c (6.7%) | 1A2b (3.3%) | 1A1a (3.0%) | 80.8% | |||||||||||||||
| Ni | 2005 | 1A1a (22.9%) | 1A1b (21.6%) | 1A4ai (7.3%) | 1A4bi (6.6%) | 1A2gviii (5.9%) | 2C1 (4.9%) | 1A3dii (4.6%) | 1A2c (3.6%) | 1A3c (3.6%) | 81.0% | |||||||||||
| Se | 2005 | 1A1a (49.0%) | 2A3 (23.7%) | 1A2f (9.2%) | 82.0% | |||||||||||||||||
| Zn | 2005 | 2C1 (23.7%) | 1A4bi (13.1%) | 1A3bvi (12.7%) | 1A1a (7.4%) | 2G (5.3%) | 1A2gviii (5.2%) | 5C2 (5.0%) | 1A2a (4.2%) | 1A2b (3.1%) | 1A2f (2.5%) | 82.2% | ||||||||||
| DIOX | 2005 | 1A4bi (22.5%) | 3F (20.5%) | 2C1 (10.6%) | 1A1a (10.6%) | 5E (6.6%) | 1A2a (4.7%) | 5C1biii (4.3%) | 5C2 (3.6%) | 83.5% | ||||||||||||
| PAH | 2005 | 1A4bi (42.4%) | 3F (39.9%) | 82.3% | ||||||||||||||||||
| HCB | 2005 | 2B10a (42.5%) | 3Df (16.8%) | 1A1a (14.2%) | 1A4bi (6.8%) | 80.3% | ||||||||||||||||
| PCB | 2005 | 2K (65.8%) | 2C1 (11.4%) | 5E (6.8%) | 83.9% | |||||||||||||||||