Technical Annual Status Report (Stage 2) for the CLRTAP Inventory Review: Synthesis and Assessment Country report
KEY CATEGORY ANALYSIS
Party: NL 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 | 1A3biii (12.3%) | 1A3bi (9.6%) | 3Da2a (8.0%) | 1A3di(ii) (5.9%) | 1A1a (5.5%) | 1A4cii (5.3%) | 1A2gvii (5.3%) | 3Da1 (4.9%) | 1A3bii (4.9%) | 1A2c (4.1%) | 1A3dii (4.0%) | 1A2a (2.8%) | 1A4aii (2.7%) | 1A4ciii (2.7%) | 1A4bi (2.6%) | 80.3% | |||
| NMVOC | 2024 | 2D3a (19.7%) | 3B1a (18.7%) | 2D3i (6.0%) | 2D3d (5.9%) | 3Dc (4.9%) | 3B1b (4.6%) | 2H3 (4.3%) | 1A3bi (3.9%) | 3Da2a (3.6%) | 1A4bi (3.4%) | 2H2 (2.6%) | 1A3biii (1.9%) | 1B2av (1.7%) | 81.1% | |||||
| SOx | 2024 | 1A1b (40.6%) | 1A2a (18.8%) | 1A1a (12.3%) | 1A2gviii (6.2%) | 1A2c (5.6%) | 83.4% | |||||||||||||
| NH3 | 2024 | 3Da2a (27.1%) | 3B1a (18.4%) | 3B3 (9.6%) | 3Da1 (7.9%) | 3B1b (7.9%) | 3B4gi (6.6%) | 6A (3.0%) | 80.5% | |||||||||||
| PM2.5 | 2024 | 1A4bi (29.1%) | 2G (8.0%) | 2A6 (7.5%) | 2A5b (4.0%) | 2C1 (3.8%) | 1A4cii (3.4%) | 5E (3.2%) | 1A2gvii (2.8%) | 2B10a (2.8%) | 1A3di(ii) (2.5%) | 1A4ai (2.3%) | 1A3dii (2.2%) | 1A3bvi (2.1%) | 2H2 (2.0%) | 1A3biii (1.9%) | 1A4aii (1.6%) | 1A5b (1.6%) | 80.5% | |
| PM10 | 2024 | 1A4bi (16.3%) | 3B4gi (7.3%) | 2G (6.7%) | 2A5b (6.3%) | 1A3bvi (6.1%) | 1A3bvii (5.1%) | 2H2 (5.0%) | 2A6 (4.4%) | 2C1 (3.5%) | 3B4gii (2.9%) | 2A5c (2.7%) | 3B3 (2.5%) | 3De (2.5%) | 2B10a (2.4%) | 2H3 (2.0%) | 1A4cii (1.9%) | 5E (1.8%) | 1A2gvii (1.6%) | 81.1% |
| TSP | 2024 | 1A4bi (14.8%) | 2A5c (7.9%) | 2C1 (6.5%) | 3B4gi (6.3%) | 2G (6.2%) | 2H2 (5.8%) | 2A5b (5.4%) | 1A3bvi (5.2%) | 1A3bvii (4.3%) | 2A6 (3.8%) | 2B10a (3.2%) | 3B4gii (2.5%) | 3B3 (2.2%) | 3De (2.1%) | 2H3 (1.8%) | 5E (1.7%) | 1A4cii (1.6%) | 81.4% | |
| BC | 2024 | 1A4bi (22.4%) | 1A4cii (10.7%) | 1A2gvii (9.0%) | 1A3di(ii) (7.1%) | 1A3dii (6.2%) | 1A3biii (6.1%) | 5E (4.9%) | 1A4aii (4.9%) | 1A3bii (4.9%) | 1A5b (4.1%) | 80.4% | ||||||||
| CO | 2024 | 1A3bi (30.9%) | 1A2a (15.0%) | 1A4bi (14.3%) | 1A4cii (6.2%) | 1A4bii (5.2%) | 1A3biv (4.5%) | 1A4aii (3.9%) | 80.0% | |||||||||||
| Pb | 2024 | 2C1 (23.3%) | 1A3aii(i) (16.3%) | 1A3bi (11.1%) | 2A3 (8.7%) | 1A3c (7.4%) | 1A3bvi (7.4%) | 2B10a (3.7%) | 1A1a (3.7%) | 81.7% | ||||||||||
| Cd | 2024 | 1A3bi (18.3%) | 2C1 (14.1%) | 2G (13.8%) | 2B10a (13.3%) | 1A4bi (9.6%) | 2C6 (4.9%) | 1A4ci (4.1%) | 1A1a (4.1%) | 82.2% | ||||||||||
| Hg | 2024 | 1A1a (22.2%) | 2A6 (18.0%) | 1A3bi (16.7%) | 1A2gviii (11.3%) | 1A4bi (9.3%) | 2C1 (7.5%) | 85.0% | ||||||||||||
| As | 2024 | 2C1 (35.2%) | 1A1a (22.4%) | 1A4bi (8.9%) | 5C2 (4.8%) | 1A2c (4.8%) | 1A4ci (4.7%) | 80.7% | ||||||||||||
| Cr | 2024 | 1A3bvi (54.2%) | 2C1 (23.3%) | 1A1a (6.5%) | 84.0% | |||||||||||||||
| Cu | 2024 | 1A3c (68.6%) | 1A3bvi (20.0%) | 88.6% | ||||||||||||||||
| Ni | 2024 | 2C1 (46.1%) | 1A3bvi (22.4%) | 1A1a (8.2%) | 2H3 (5.5%) | 82.2% | ||||||||||||||
| Se | 2024 | 2A3 (51.8%) | 1A1b (18.2%) | 1A3bvi (9.2%) | 1A1a (6.0%) | 85.1% | ||||||||||||||
| Zn | 2024 | 2C1 (25.5%) | 1A3bi (24.5%) | 1A3bvi (23.5%) | 2C6 (11.7%) | 85.2% | ||||||||||||||
| DIOX | 2024 | 5E (55.8%) | 1A4bi (20.2%) | 2D3i (15.6%) | 91.6% | |||||||||||||||
| PAH | 2024 | 1A4bi (60.9%) | 5E (13.0%) | 2A6 (6.0%) | 5C2 (5.1%) | 84.9% | ||||||||||||||
| HCB | 2024 | 1A1a (87.9%) | 87.9% | |||||||||||||||||
| PCB | 2024 | 1A2a (44.8%) | 1A1a (31.8%) | 1A1c (10.7%) | 87.3% | |||||||||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2010 | 1A3biii (22.8%) | 1A3bi (8.6%) | 1A1a (7.4%) | 1A4ci (5.3%) | 1A3bii (5.3%) | 1A2gvii (5.0%) | 3Da2a (4.2%) | 1A4bi (4.2%) | 1A4cii (3.6%) | 1A2c (3.6%) | 1A3di(ii) (3.5%) | 1A4ciii (3.4%) | 3Da1 (2.5%) | 1A4aii (2.5%) | 82.0% | ||||||
| NMVOC | 2010 | 3B1a (13.1%) | 2D3a (12.6%) | 2D3d (10.2%) | 2D3i (5.5%) | 1A4bi (4.9%) | 3B1b (4.6%) | 3Dc (3.7%) | 1A3bi (3.7%) | 2H3 (3.6%) | 3Da2a (3.4%) | 1A3biv (3.3%) | 2H2 (2.8%) | 1B2b (2.7%) | 1A4ci (2.7%) | 2B10a (2.1%) | 1B2aiv (1.7%) | 80.5% | ||||
| SOx | 2010 | 1A1b (35.3%) | 1A1a (18.7%) | 1A2a (10.6%) | 1A2gviii (7.4%) | 1A2b (6.2%) | 1A2c (5.8%) | 84.0% | ||||||||||||||
| NH3 | 2010 | 3Da2a (26.8%) | 3B3 (20.0%) | 3B1a (13.1%) | 3B1b (7.1%) | 3B4gi (7.1%) | 3Da1 (6.0%) | 80.2% | ||||||||||||||
| PM2.5 | 2010 | 1A4bi (32.0%) | 2G (6.1%) | 1A2gvii (4.4%) | 2A6 (4.4%) | 1A3bi (4.4%) | 1A3bii (4.4%) | 2B10a (3.9%) | 1A3biii (3.8%) | 1A4cii (3.6%) | 1A2a (2.9%) | 1A4aii (2.4%) | 1A4ciii (2.3%) | 1A3di(ii) (1.9%) | 5E (1.8%) | 2A5b (1.6%) | 80.0% | |||||
| PM10 | 2010 | 1A4bi (20.9%) | 3B4gi (6.1%) | 2G (5.4%) | 1A3bvi (3.9%) | 2B10a (3.6%) | 3B3 (3.5%) | 2H2 (3.3%) | 1A3bvii (3.2%) | 2A6 (3.1%) | 2A5b (3.1%) | 3B4gii (3.0%) | 1A2gvii (2.9%) | 1A2a (2.8%) | 1A3bi (2.7%) | 1A3bii (2.7%) | 3De (2.3%) | 1A3biii (2.3%) | 1A4cii (2.3%) | 2A5c (2.3%) | 1A4aii (1.6%) | 81.0% |
| TSP | 2010 | 1A4bi (18.5%) | 2A5c (6.6%) | 1A2a (6.3%) | 3B4gi (5.1%) | 2G (4.7%) | 2B10a (4.7%) | 2H2 (3.6%) | 1A3bvi (3.2%) | 2H3 (3.2%) | 3B3 (2.9%) | 1A3bvii (2.6%) | 2A6 (2.6%) | 2A5b (2.5%) | 3B4gii (2.5%) | 1A2gvii (2.4%) | 1A3bi (2.3%) | 1A3bii (2.2%) | 3De (1.9%) | 1A3biii (1.9%) | 1A4cii (1.9%) | 81.9% |
| BC | 2010 | 1A4bi (17.4%) | 1A3bii (15.9%) | 1A3bi (12.3%) | 1A2gvii (10.0%) | 1A3biii (10.0%) | 1A4cii (7.9%) | 1A4aii (5.2%) | 1A3di(ii) (4.3%) | 83.0% | ||||||||||||
| CO | 2010 | 1A3bi (36.0%) | 1A4bi (14.8%) | 1A2a (12.5%) | 1A3biv (6.9%) | 1A4bii (4.4%) | 1A3biii (3.7%) | 1A4cii (3.1%) | 81.4% | |||||||||||||
| Pb | 2010 | 2C1 (79.1%) | 1A2c (7.8%) | 86.9% | ||||||||||||||||||
| Cd | 2010 | 2C6 (41.6%) | 2B10a (29.1%) | 2C1 (17.4%) | 88.0% | |||||||||||||||||
| Hg | 2010 | 1A1a (30.1%) | 2C1 (24.5%) | 2A6 (10.4%) | 1A3bi (7.6%) | 1A4bi (6.4%) | 1A2gviii (4.6%) | 83.5% | ||||||||||||||
| As | 2010 | 2C1 (37.5%) | 1A1a (20.4%) | 2A3 (16.9%) | 1A4bi (7.2%) | 82.1% | ||||||||||||||||
| Cr | 2010 | 1A3bvi (52.1%) | 2C1 (18.8%) | 2H3 (7.4%) | 1A3bi (4.9%) | 83.2% | ||||||||||||||||
| Cu | 2010 | 1A3c (70.8%) | 1A3bvi (17.8%) | 88.6% | ||||||||||||||||||
| Ni | 2010 | 2C1 (30.1%) | 1A3bvi (21.7%) | 2C3 (14.1%) | 1A4ciii (12.7%) | 1A1a (6.2%) | 84.8% | |||||||||||||||
| Se | 2010 | 1A1a (85.5%) | 85.5% | |||||||||||||||||||
| Zn | 2010 | 2C1 (24.1%) | 1A3bvi (17.6%) | 1A3bi (17.5%) | 2C6 (11.9%) | 1A2c (5.5%) | 3Df (4.4%) | 81.0% | ||||||||||||||
| DIOX | 2010 | 5E (38.9%) | 1A4bi (20.4%) | 2D3i (20.1%) | 1A2c (9.8%) | 89.1% | ||||||||||||||||
| PAH | 2010 | 1A4bi (68.1%) | 5E (8.1%) | 2A6 (6.4%) | 82.6% | |||||||||||||||||
| HCB | 2010 | 1A1a (61.4%) | 3Df (28.8%) | 90.2% | ||||||||||||||||||
| PCB | 2010 | 1A1a (48.9%) | 1A2a (21.3%) | 1A4ai (10.2%) | 80.4% | |||||||||||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2005 | 1A3biii (24.9%) | 1A1a (10.2%) | 1A3bi (10.1%) | 1A2gvii (5.2%) | 1A3bii (4.6%) | 1A4bi (4.0%) | 1A4ciii (3.7%) | 1A3di(ii) (3.6%) | 1A2c (3.4%) | 3Da2a (3.4%) | 1A4cii (3.1%) | 1A4ci (2.7%) | 3Da1 (2.6%) | 81.4% | |||||||
| NMVOC | 2005 | 2D3a (11.5%) | 2D3d (9.7%) | 3B1a (9.0%) | 1A3bi (6.4%) | 3Da2a (5.7%) | 2D3i (5.2%) | 1A4bi (4.5%) | 2H3 (3.8%) | 1B2aiv (3.4%) | 1A3biv (3.3%) | 2B10a (3.0%) | 3B1b (2.9%) | 2H2 (2.8%) | 1B2b (2.5%) | 3Dc (2.4%) | 1A3biii (2.2%) | 2D3h (2.1%) | 80.4% | |||
| SOx | 2005 | 1A1b (47.6%) | 1A1a (14.7%) | 1A2b (6.4%) | 1A2c (5.8%) | 1A4ciii (5.1%) | 1A2a (5.0%) | 84.6% | ||||||||||||||
| NH3 | 2005 | 3Da2a (33.3%) | 3B3 (17.7%) | 3B1a (10.8%) | 3Da1 (8.3%) | 3B4gi (5.5%) | 3B1b (5.2%) | 80.8% | ||||||||||||||
| PM2.5 | 2005 | 1A4bi (22.7%) | 1A3biii (8.6%) | 1A3bi (7.2%) | 1A3bii (6.6%) | 1A2gvii (6.2%) | 2G (5.2%) | 1A1b (4.3%) | 1A4cii (4.2%) | 2C1 (3.9%) | 2A6 (3.4%) | 1A4aii (2.7%) | 2B10a (2.5%) | 1A4ciii (2.5%) | 1A3di(ii) (2.1%) | 82.0% | ||||||
| PM10 | 2005 | 1A4bi (16.1%) | 1A3biii (5.8%) | 2G (5.0%) | 1A3bi (4.8%) | 1A3bii (4.5%) | 1A2gvii (4.4%) | 2C1 (4.0%) | 3B4gi (3.8%) | 1A1b (3.6%) | 2H2 (3.5%) | 1A3bvi (3.2%) | 1A4cii (2.9%) | 3B3 (2.9%) | 2B10a (2.8%) | 2A5b (2.7%) | 3B4gii (2.6%) | 1A3bvii (2.6%) | 2A6 (2.5%) | 3De (2.0%) | 2A5c (2.0%) | 81.7% |
| TSP | 2005 | 1A4bi (14.3%) | 2C1 (8.0%) | 2A5c (5.7%) | 2B10a (5.0%) | 1A3biii (4.8%) | 2G (4.4%) | 1A3bi (4.0%) | 2H2 (3.8%) | 1A3bii (3.7%) | 1A2gvii (3.6%) | 1A1b (3.4%) | 3B4gi (3.2%) | 2H3 (3.2%) | 1A3bvi (2.7%) | 1A4cii (2.4%) | 3B3 (2.4%) | 2A5b (2.2%) | 3B4gii (2.1%) | 1A3bvii (2.1%) | 81.2% | |
| BC | 2005 | 1A3biii (18.3%) | 1A3bii (17.2%) | 1A3bi (16.8%) | 1A2gvii (10.8%) | 1A4bi (9.8%) | 1A4cii (7.2%) | 80.1% | ||||||||||||||
| CO | 2005 | 1A3bi (40.1%) | 1A4bi (10.9%) | 1A2a (9.1%) | 1A2b (6.7%) | 1A3biv (5.9%) | 1A4bii (4.0%) | 1A3biii (3.1%) | 1A4cii (3.0%) | 82.8% | ||||||||||||
| Pb | 2005 | 2C1 (76.1%) | 2B10a (7.3%) | 83.4% | ||||||||||||||||||
| Cd | 2005 | 2C6 (48.8%) | 2B10a (21.0%) | 2C1 (17.3%) | 87.0% | |||||||||||||||||
| Hg | 2005 | 1A1a (38.9%) | 2C1 (20.1%) | 2A1 (9.5%) | 5C1bv (8.8%) | 1A3bi (6.0%) | 83.4% | |||||||||||||||
| As | 2005 | 1A1b (49.6%) | 1A1a (16.8%) | 2C1 (15.8%) | 82.3% | |||||||||||||||||
| Cr | 2005 | 1A3bvi (44.5%) | 2C1 (22.1%) | 1A1a (7.9%) | 2H3 (6.2%) | 80.8% | ||||||||||||||||
| Cu | 2005 | 1A3c (70.3%) | 1A3bvi (18.4%) | 88.6% | ||||||||||||||||||
| Ni | 2005 | 1A1b (60.8%) | 1A1a (18.8%) | 2C1 (5.0%) | 84.7% | |||||||||||||||||
| Se | 2005 | 1A1a (67.1%) | 2A3 (21.7%) | 88.8% | ||||||||||||||||||
| Zn | 2005 | 2C1 (21.3%) | 1A3bi (20.4%) | 1A3bvi (19.5%) | 2C6 (12.6%) | 3Df (7.7%) | 81.5% | |||||||||||||||
| DIOX | 2005 | 5E (37.7%) | 2D3i (27.4%) | 1A4bi (21.9%) | 87.1% | |||||||||||||||||
| PAH | 2005 | 1A4bi (61.9%) | 5E (7.7%) | 2A6 (6.2%) | 5C2 (5.3%) | 81.0% | ||||||||||||||||
| HCB | 2005 | 3Df (48.6%) | 1A1a (41.3%) | 89.9% | ||||||||||||||||||
| PCB | 2005 | 1A1a (52.7%) | 1A2a (24.4%) | 5C1bv (9.8%) | 86.8% | |||||||||||||||||