Technical Annual Status Report (Stage 2) for the CLRTAP Inventory Review: Synthesis and Assessment Country report
KEY CATEGORY ANALYSIS
Party: SE Submission year: 2026
Key categories analysis is becoming important in prioritising emission sources and identifying where inventory improvements can be most efficiently implemented. 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 2024, 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 | 2024 | 1A3bi (18.1%) | 1A1a (11.6%) | 2H1 (10.9%) | 3Da1 (7.4%) | 1A3biii (7.1%) | 1A3bii (6.4%) | 1A3dii (6.0%) | 1A2gviii (4.0%) | 1A2gvii (3.5%) | 3Da2a (2.8%) | 1A2d (2.8%) | 80.6% | ||
| NMVOC | 2024 | 2D3i (21.7%) | 1A1b (7.1%) | 3B1b (6.5%) | 2D3d (6.0%) | 2D3a (6.0%) | 3B1a (5.7%) | 3Da2a (5.7%) | 2H1 (4.8%) | 1A4bi (4.7%) | 1A3bi (4.1%) | 1A3dii (3.5%) | 3B4e (2.6%) | 1B2av (2.4%) | 80.6% |
| SOx | 2024 | 2C7c (22.6%) | 2H1 (19.4%) | 1A1a (16.5%) | 2C1 (6.2%) | 1A2d (5.2%) | 1A2gviii (4.2%) | 2B10a (3.7%) | 1A2f (3.0%) | 80.7% | |||||
| NH3 | 2024 | 3Da2a (25.3%) | 3B1b (14.6%) | 3Da1 (13.9%) | 3Da3 (7.1%) | 3B1a (6.4%) | 3B4e (5.4%) | 3B3 (4.7%) | 3Da4 (4.5%) | 81.9% | |||||
| PM2.5 | 2024 | 1A4bi (33.1%) | 2H1 (10.9%) | 1A3bvii (7.0%) | 2A5b (6.8%) | 2C1 (5.8%) | 1A1a (5.5%) | 1A3dii (4.0%) | 1A4ci (3.1%) | 1A3bvi (2.8%) | 3Dc (1.8%) | 81.0% | |||
| PM10 | 2024 | 1A3bvii (30.8%) | 2A5b (23.9%) | 1A4bi (12.2%) | 3Dc (5.9%) | 2H1 (4.8%) | 1A3bvi (4.0%) | 81.6% | |||||||
| TSP | 2024 | 2A5b (41.0%) | 1A3bvii (31.6%) | 1A4bi (6.4%) | 1A3bvi (3.0%) | 82.0% | |||||||||
| BC | 2024 | 1A4bi (36.6%) | 1A3bvi (13.9%) | 1A2gvii (8.1%) | 1A2d (4.7%) | 1A3dii (3.9%) | 1A4aii (3.8%) | 1A3bii (3.3%) | 1A3bi (3.0%) | 1A2gviii (2.8%) | 80.2% | ||||
| CO | 2024 | 1A4bi (23.7%) | 1A3bi (18.2%) | 1A4bii (12.3%) | 1A4aii (8.3%) | 1A3dii (6.4%) | 2H1 (6.0%) | 1A4cii (4.8%) | 1A2gvii (4.5%) | 84.3% | |||||
| Pb | 2024 | 1A1a (34.3%) | 2C7c (21.5%) | 1A2d (10.4%) | 1A4bi (8.0%) | 2C1 (5.9%) | 80.0% | ||||||||
| Cd | 2024 | 1A1a (33.1%) | 1A4bi (21.1%) | 2C7c (18.5%) | 1A2d (8.3%) | 81.1% | |||||||||
| Hg | 2024 | 1A1a (37.9%) | 2C1 (16.2%) | 1A3bi (6.7%) | 5C1bv (5.4%) | 2H1 (5.0%) | 2C7c (5.0%) | 1A4bi (4.5%) | 80.8% | ||||||
| As | 2024 | 1A1a (35.2%) | 2C7c (23.9%) | 2H1 (18.9%) | 1A3dii (4.4%) | 82.4% | |||||||||
| Cr | 2024 | 2C2 (49.1%) | 2C1 (20.5%) | 1A1a (14.4%) | 84.0% | ||||||||||
| Cu | 2024 | 1A3bvi (73.7%) | 1A1a (7.6%) | 81.3% | |||||||||||
| Ni | 2024 | 1A2d (20.8%) | 1A1a (19.9%) | 1A3dii (16.5%) | 1A2gviii (10.4%) | 2C1 (9.1%) | 1A2f (5.9%) | 82.6% | |||||||
| Se | 2024 | 2C1 (42.9%) | 2A3 (24.9%) | 1A1a (14.2%) | 82.0% | ||||||||||
| Zn | 2024 | 1A3bvi (31.7%) | 1A4bi (20.4%) | 1A1a (18.0%) | 2C1 (9.8%) | 1A2d (5.8%) | 85.7% | ||||||||
| DIOX | 2024 | 1A4bi (28.6%) | 5E (17.2%) | 1A1a (10.0%) | 5C1bv (8.8%) | 2C1 (8.8%) | 1A3bi (5.4%) | 1A4ci (4.1%) | 82.7% | ||||||
| PAH | 2024 | 1A4bi (78.7%) | 1A4ci (7.6%) | 86.4% | |||||||||||
| HCB | 2024 | 1A1a (34.7%) | 2C1 (23.1%) | 5C1bii (9.4%) | 1A2d (8.5%) | 2B10a (7.4%) | 83.2% | ||||||||
| PCB | 2024 | 2C1 (78.6%) | 1A2f (7.7%) | 86.3% | |||||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2010 | 1A3biii (24.8%) | 1A3bi (14.9%) | 1A1a (9.0%) | 1A3bii (6.3%) | 2H1 (6.2%) | 1A3dii (4.7%) | 3Da1 (4.0%) | 1A2gvii (3.7%) | 1A2gviii (3.4%) | 1A4cii (3.1%) | 1A2d (2.8%) | 82.8% | |||
| NMVOC | 2010 | 2D3i (15.6%) | 1A3bi (10.1%) | 2D3a (9.0%) | 1A4bi (6.5%) | 2D3d (6.2%) | 3B1b (5.0%) | 1A1b (4.9%) | 3B1a (4.7%) | 3Da2a (4.7%) | 2H1 (3.6%) | 1A3dii (3.2%) | 1A4bii (2.8%) | 1B2av (2.6%) | 1A4cii (2.3%) | 81.2% |
| SOx | 2010 | 1A1a (22.4%) | 2H1 (17.0%) | 2C7c (11.7%) | 2C1 (9.6%) | 1A3dii (7.3%) | 1A2gviii (5.0%) | 1A2d (4.9%) | 1A1b (4.4%) | 82.3% | ||||||
| NH3 | 2010 | 3Da2a (26.4%) | 3B1b (13.7%) | 3Da1 (12.6%) | 3B1a (7.5%) | 3Da3 (7.0%) | 1A3bi (5.5%) | 3B3 (5.4%) | 3B4e (5.1%) | 83.3% | ||||||
| PM2.5 | 2010 | 1A4bi (32.8%) | 2H1 (12.4%) | 2A5b (10.0%) | 1A1a (6.8%) | 2C1 (5.6%) | 1A3dii (3.5%) | 1A3biii (3.0%) | 1A2d (2.5%) | 1A3bvii (2.5%) | 1A4ci (2.4%) | 81.5% | ||||
| PM10 | 2010 | 2A5b (40.8%) | 1A4bi (14.1%) | 1A3bvii (12.7%) | 2H1 (6.4%) | 1A1a (3.8%) | 3Dc (3.4%) | 81.2% | ||||||||
| TSP | 2010 | 2A5b (63.8%) | 1A3bvii (11.9%) | 1A4bi (6.7%) | 82.4% | |||||||||||
| BC | 2010 | 1A4bi (26.5%) | 1A3biii (14.2%) | 1A3bii (10.0%) | 1A3bi (7.5%) | 1A2gvii (6.8%) | 1A2d (5.6%) | 1A4cii (5.5%) | 1A3bvi (4.2%) | 80.2% | ||||||
| CO | 2010 | 1A3bi (28.3%) | 1A4bi (25.1%) | 1A4bii (10.8%) | 1A4aii (5.5%) | 1A3dii (4.7%) | 1A3biii (3.6%) | 1A4cii (3.5%) | 81.7% | |||||||
| Pb | 2010 | 1A1a (26.6%) | 2C7c (25.4%) | 2C1 (11.0%) | 1A2d (9.7%) | 1A4bi (7.1%) | 1A2gviii (4.4%) | 84.3% | ||||||||
| Cd | 2010 | 1A1a (32.7%) | 1A4bi (26.6%) | 1A2d (10.3%) | 2H1 (8.9%) | 2C7c (5.2%) | 83.7% | |||||||||
| Hg | 2010 | 1A1a (32.4%) | 2C1 (19.1%) | 5C1bv (9.0%) | 2C7c (7.6%) | 1A3bi (6.2%) | 1A4bi (4.5%) | 2B10a (4.4%) | 83.2% | |||||||
| As | 2010 | 1A1a (30.4%) | 2C7c (27.7%) | 2H1 (11.9%) | 2C1 (8.1%) | 1A3dii (7.0%) | 85.2% | |||||||||
| Cr | 2010 | 2C2 (39.4%) | 2C1 (29.6%) | 1A1a (14.7%) | 83.8% | |||||||||||
| Cu | 2010 | 1A3bvi (67.4%) | 1A1a (9.7%) | 2C1 (4.5%) | 81.6% | |||||||||||
| Ni | 2010 | 1A1a (27.5%) | 1A2d (21.4%) | 1A3dii (14.2%) | 1A2gviii (8.6%) | 2C1 (6.5%) | 1A2a (4.9%) | 83.1% | ||||||||
| Se | 2010 | 2C1 (37.3%) | 2A3 (20.3%) | 1A1a (19.6%) | 1A4bi (8.6%) | 85.8% | ||||||||||
| Zn | 2010 | 1A1a (22.9%) | 1A4bi (19.8%) | 1A3bvi (16.1%) | 2C1 (14.0%) | 2C7c (9.9%) | 82.8% | |||||||||
| DIOX | 2010 | 1A4bi (21.5%) | 2C1 (16.9%) | 1A1a (14.7%) | 5E (11.8%) | 1A3bi (9.4%) | 2C7c (4.1%) | 5C1bv (4.1%) | 82.4% | |||||||
| PAH | 2010 | 1A4bi (84.8%) | 84.8% | |||||||||||||
| HCB | 2010 | 2B10a (59.3%) | 1A1a (17.0%) | 2C1 (10.1%) | 86.5% | |||||||||||
| PCB | 2010 | 2C1 (72.1%) | 1A2f (11.9%) | 84.0% | ||||||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2005 | 1A3biii (30.9%) | 1A3bi (14.9%) | 1A1a (6.3%) | 2H1 (5.5%) | 1A3bii (4.6%) | 1A2gvii (4.1%) | 1A3dii (3.9%) | 1A4cii (3.5%) | 3Da1 (3.4%) | 1A2d (2.9%) | 80.0% | ||||
| NMVOC | 2005 | 1A3bi (13.9%) | 2D3i (11.5%) | 2D3d (11.3%) | 2D3a (7.5%) | 1A4bi (6.4%) | 3B1a (4.7%) | 3Da2a (4.2%) | 3B1b (4.2%) | 1A1b (3.5%) | 2H1 (3.2%) | 1A3bv (2.8%) | 1A4bii (2.7%) | 1B2av (2.5%) | 1A3dii (2.3%) | 80.7% |
| SOx | 2005 | 2H1 (19.4%) | 1A1a (17.2%) | 1A3dii (12.5%) | 2C7c (11.0%) | 1A2d (6.4%) | 2C1 (6.2%) | 1A1b (5.0%) | 1A2gviii (4.1%) | 81.7% | ||||||
| NH3 | 2005 | 3Da2a (26.6%) | 3Da1 (12.8%) | 3B1b (12.4%) | 3B1a (8.7%) | 3Da3 (7.1%) | 1A3bi (6.7%) | 3B3 (6.4%) | 80.6% | |||||||
| PM2.5 | 2005 | 1A4bi (30.1%) | 2H1 (12.5%) | 2A5b (8.7%) | 2C1 (8.4%) | 1A1a (6.2%) | 1A3biii (4.5%) | 1A3dii (3.1%) | 1A2d (2.9%) | 1A3bvii (2.5%) | 1A4ci (2.3%) | 81.1% | ||||
| PM10 | 2005 | 2A5b (37.5%) | 1A4bi (13.7%) | 1A3bvii (13.6%) | 2H1 (6.8%) | 2C1 (4.0%) | 1A1a (3.6%) | 3Dc (3.0%) | 82.2% | |||||||
| TSP | 2005 | 2A5b (60.6%) | 1A3bvii (13.1%) | 1A4bi (6.8%) | 80.5% | |||||||||||
| BC | 2005 | 1A4bi (24.8%) | 1A3biii (19.4%) | 1A3bii (10.0%) | 1A3bi (7.1%) | 1A2d (6.2%) | 1A2gvii (5.3%) | 1A4cii (4.7%) | 1A3bvi (3.6%) | 81.0% | ||||||
| CO | 2005 | 1A3bi (37.4%) | 1A4bi (22.7%) | 1A4bii (9.1%) | 1A3bii (5.3%) | 1A4aii (4.7%) | 1A3dii (3.3%) | 82.5% | ||||||||
| Pb | 2005 | 2C7c (30.8%) | 1A1a (15.8%) | 2C1 (11.9%) | 1A2d (8.4%) | 1A4bi (6.2%) | 2A3 (5.4%) | 1A3aii(i) (5.0%) | 83.5% | |||||||
| Cd | 2005 | 1A4bi (24.8%) | 1A1a (23.8%) | 2C7c (13.3%) | 2H1 (10.9%) | 1A2d (9.2%) | 81.9% | |||||||||
| Hg | 2005 | 2C1 (22.8%) | 1A1a (18.7%) | 2B10a (17.6%) | 5C1bv (8.7%) | 2C7c (8.2%) | 1A3bi (5.3%) | 81.2% | ||||||||
| As | 2005 | 2C7c (22.6%) | 1A1a (21.6%) | 2H1 (12.7%) | 2C1 (11.9%) | 1A3dii (7.8%) | 1A2d (4.2%) | 80.8% | ||||||||
| Cr | 2005 | 2C2 (68.5%) | 2C1 (17.9%) | 86.3% | ||||||||||||
| Cu | 2005 | 1A3bvi (62.8%) | 2C1 (8.5%) | 2C7c (8.0%) | 2G (5.7%) | 85.0% | ||||||||||
| Ni | 2005 | 1A2d (27.9%) | 1A1a (18.3%) | 1A3dii (14.3%) | 2C1 (6.3%) | 1A2gviii (6.2%) | 1A2f (5.8%) | 1A2a (4.7%) | 83.5% | |||||||
| Se | 2005 | 2C1 (32.8%) | 2A3 (20.3%) | 1A1a (19.6%) | 1A4bi (9.3%) | 82.0% | ||||||||||
| Zn | 2005 | 1A1a (21.9%) | 1A4bi (17.9%) | 2C1 (17.5%) | 1A3bvi (16.7%) | 1A2d (9.5%) | 83.5% | |||||||||
| DIOX | 2005 | 2C1 (26.0%) | 1A1a (15.3%) | 1A4bi (14.1%) | 2C7c (11.7%) | 5E (7.7%) | 1A3bi (7.0%) | 81.9% | ||||||||
| PAH | 2005 | 1A4bi (60.9%) | 2C3 (30.0%) | 90.9% | ||||||||||||
| HCB | 2005 | 2B10a (53.1%) | 1A1a (18.5%) | 2C1 (11.2%) | 82.7% | |||||||||||
| PCB | 2005 | 2C1 (71.7%) | 1A2f (13.5%) | 85.2% | ||||||||||||