Review Stage 2: Synthesis and Assessment Country report
KEY SOURCE ANALYSIS FOR
CLRTAP
Party: LV Submission year: 2023
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 2021, 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 | 2021 | 1A3biii (16.6%) | 1A3bi (12.0%) | 1A1a (10.5%) | 3Da1 (10.0%) | 1A2gviii (8.9%) | 2A1 (5.9%) | 1A4cii (4.8%) | 1A4bi (4.4%) | 1A3c (4.4%) | 1A3bii (4.3%) | 81.9% |
| NMVOC | 2021 | 1A4bi (23.6%) | 2D3i (13.4%) | 2D3d (11.7%) | 2D3a (10.2%) | 3B1a (9.8%) | 2D3g (3.9%) | 3B1b (3.6%) | 2H2 (3.5%) | 3De (3.1%) | 82.8% | |
| SOx | 2021 | 1A1a (29.2%) | 1A4bi (24.1%) | 1A2gviii (20.3%) | 1A4cii (7.2%) | 80.9% | ||||||
| NH3 | 2021 | 3Da1 (22.5%) | 3B1a (21.8%) | 3Da2a (19.5%) | 1A4bi (7.6%) | 3B3 (5.9%) | 3Da3 (4.5%) | 81.8% | ||||
| PM2.5 | 2021 | 1A4bi (59.2%) | 1A1a (16.8%) | 1A2gviii (5.3%) | 81.3% | |||||||
| PM10 | 2021 | 1A4bi (37.0%) | 2D3b (17.8%) | 1A1a (11.9%) | 3Dc (10.1%) | 2A5b (6.4%) | 83.2% | |||||
| TSP | 2021 | 2D3b (43.7%) | 1A4bi (20.5%) | 2A5b (11.1%) | 1A1a (7.0%) | 82.3% | ||||||
| BC | 2021 | 1A4bi (58.7%) | 1A3bi (8.7%) | 1A1a (4.9%) | 1A2gviii (4.9%) | 1A3biii (2.7%) | 1A4ai (2.1%) | 81.9% | ||||
| CO | 2021 | 1A4bi (66.7%) | 1A3bi (5.9%) | 1A2gviii (4.3%) | 6A (3.8%) | 80.6% | ||||||
| Pb | 2021 | 1A3bvi (36.5%) | 1A3bi (19.5%) | 1A4bi (13.8%) | 1A1a (12.0%) | 81.8% | ||||||
| Cd | 2021 | 1A4bi (45.8%) | 1A2gviii (31.9%) | 1A4ai (7.3%) | 85.0% | |||||||
| Hg | 2021 | 1A1a (40.5%) | 1A2gviii (13.9%) | 1A4bi (13.0%) | 2A1 (7.7%) | 5C1bv (7.5%) | 82.5% | |||||
| As | 2021 | 1A1a (77.3%) | 1A2gviii (11.5%) | 88.8% | ||||||||
| Cr | 2021 | 1A3bvi (32.1%) | 1A4bi (27.2%) | 1A2gviii (20.1%) | 1A1a (12.3%) | 91.7% | ||||||
| Cu | 2021 | 1A3bvi (89.8%) | 89.8% | |||||||||
| Ni | 2021 | 1A1a (57.7%) | 1A3bvi (13.6%) | 1A2gviii (12.0%) | 83.2% | |||||||
| Se | 2021 | 1A1a (41.5%) | 1A2gviii (14.8%) | 1A4bi (14.1%) | 1A3bvi (12.5%) | 82.9% | ||||||
| Zn | 2021 | 1A4bi (36.0%) | 1A2gviii (26.4%) | 1A1a (14.7%) | 1A3bvi (12.8%) | 89.9% | ||||||
| DIOX | 2021 | 1A4bi (75.0%) | 1A2gviii (9.7%) | 84.8% | ||||||||
| PAH | 2021 | 1A4bi (75.8%) | 6A (11.5%) | 87.3% | ||||||||
| HCB | 2021 | 3Df (38.7%) | 1A1a (21.7%) | 1A4bi (18.7%) | 1A2gviii (15.7%) | 94.8% | ||||||
| PCB | 2021 | 1A1a (61.8%) | 1A2gviii (13.1%) | 1A4ai (11.5%) | 86.3% | |||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2010 | 1A3biii (26.1%) | 1A3bi (11.5%) | 1A3c (9.6%) | 1A1a (7.8%) | 1A4cii (6.2%) | 3Da1 (5.7%) | 1A2gviii (4.8%) | 1A4bi (4.6%) | 1A4ai (3.0%) | 1A3bii (2.2%) | 81.4% | |
| NMVOC | 2010 | 1A4bi (32.3%) | 2D3d (11.3%) | 3B1a (10.5%) | 1A3bi (7.1%) | 2H2 (3.4%) | 2D3a (3.2%) | 2D3g (3.1%) | 3B1b (2.8%) | 2D3i (2.8%) | 3De (2.4%) | 1B2b (2.2%) | 81.0% |
| SOx | 2010 | 1A4bi (32.4%) | 1A1a (15.3%) | 1A4ai (11.6%) | 1A2gviii (10.3%) | 1A2a (5.0%) | 1A4cii (4.3%) | 1A2e (4.1%) | 83.1% | ||||
| NH3 | 2010 | 3B1a (23.9%) | 3Da2a (22.9%) | 3Da1 (12.7%) | 1A4bi (11.1%) | 3B3 (7.9%) | 3Da3 (3.1%) | 81.7% | |||||
| PM2.5 | 2010 | 1A4bi (76.2%) | 1A1a (3.4%) | 1A4ai (2.0%) | 81.6% | ||||||||
| PM10 | 2010 | 1A4bi (56.8%) | 2D3b (8.8%) | 3Dc (7.3%) | 2A5b (6.8%) | 1A1a (2.9%) | 82.6% | ||||||
| TSP | 2010 | 1A4bi (37.8%) | 2D3b (26.0%) | 2A5b (14.1%) | 3Dc (3.8%) | 81.6% | |||||||
| BC | 2010 | 1A4bi (63.5%) | 1A3bi (7.5%) | 1A3biii (5.9%) | 1A4cii (2.8%) | 1A4ai (2.7%) | 82.4% | ||||||
| CO | 2010 | 1A4bi (66.7%) | 1A3bi (15.2%) | 81.9% | |||||||||
| Pb | 2010 | 2C1 (97.3%) | 97.3% | ||||||||||
| Cd | 2010 | 2C1 (43.4%) | 1A4bi (33.4%) | 1A2gviii (11.9%) | 88.7% | ||||||||
| Hg | 2010 | 1A4bi (25.1%) | 1A1a (14.9%) | 2A1 (14.3%) | 1A4ai (13.8%) | 1A2gviii (7.0%) | 1A3bi (4.4%) | 5C1bv (3.7%) | 83.2% | ||||
| As | 2010 | 2C1 (99.4%) | 99.4% | ||||||||||
| Cr | 2010 | 2C1 (44.7%) | 1A4bi (21.5%) | 1A3bvi (17.6%) | 83.9% | ||||||||
| Cu | 2010 | 1A3bvi (90.4%) | 90.4% | ||||||||||
| Ni | 2010 | 2C1 (91.5%) | 91.5% | ||||||||||
| Se | 2010 | 1A1a (31.5%) | 1A4bi (25.1%) | 1A3bvi (13.6%) | 1A2gviii (8.2%) | 1A4ai (7.6%) | 86.0% | ||||||
| Zn | 2010 | 1A4bi (43.7%) | 1A2gviii (15.4%) | 2C1 (14.4%) | 1A3bvi (10.7%) | 84.1% | |||||||
| DIOX | 2010 | 1A4bi (75.2%) | 5E (10.0%) | 85.3% | |||||||||
| PAH | 2010 | 1A4bi (84.9%) | 84.9% | ||||||||||
| HCB | 2010 | 1A4bi (43.1%) | 3Df (19.3%) | 1A2gviii (15.6%) | 1A1a (9.8%) | 87.8% | |||||||
| PCB | 2010 | 1A4bi (41.7%) | 1A4ai (39.7%) | 81.4% | |||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2005 | 1A3biii (27.5%) | 1A3bi (13.1%) | 1A3c (10.7%) | 1A1a (7.5%) | 1A4cii (6.1%) | 1A4bi (4.8%) | 1A4ciii (4.2%) | 3Da1 (3.5%) | 1A4ai (3.5%) | 81.0% | |
| NMVOC | 2005 | 1A4bi (35.1%) | 1A3bi (11.0%) | 3B1a (9.4%) | 2D3d (8.5%) | 2H2 (4.3%) | 2D3a (3.9%) | 1A3biii (2.7%) | 1B2b (2.2%) | 2D3g (2.2%) | 3B1b (1.9%) | 81.3% |
| SOx | 2005 | 1A4bi (21.8%) | 1A1a (17.9%) | 2A1 (15.5%) | 1A4ai (12.2%) | 1A2f (6.0%) | 1A2e (4.8%) | 1A3c (3.7%) | 82.0% | |||
| NH3 | 2005 | 3B1a (25.5%) | 3Da2a (24.0%) | 1A4bi (14.9%) | 3B3 (9.2%) | 3Da1 (7.8%) | 81.4% | |||||
| PM2.5 | 2005 | 1A4bi (80.2%) | 80.2% | |||||||||
| PM10 | 2005 | 1A4bi (62.9%) | 2D3b (8.8%) | 2A5b (6.0%) | 3Dc (4.9%) | 82.6% | ||||||
| TSP | 2005 | 1A4bi (42.5%) | 2D3b (26.4%) | 2A5b (12.6%) | 81.5% | |||||||
| BC | 2005 | 1A4bi (68.2%) | 1A3biii (6.6%) | 1A3bi (4.9%) | 1A4ai (2.9%) | 82.6% | ||||||
| CO | 2005 | 1A4bi (62.6%) | 1A3bi (22.6%) | 85.1% | ||||||||
| Pb | 2005 | 2C1 (97.1%) | 97.1% | |||||||||
| Cd | 2005 | 2C1 (41.4%) | 1A4bi (39.7%) | 81.1% | ||||||||
| Hg | 2005 | 1A4bi (29.4%) | 1A4ai (15.7%) | 1A1a (12.9%) | 1A2f (8.6%) | 5C1biii (5.3%) | 1A2gviii (4.5%) | 1A2e (4.2%) | 80.6% | |||
| As | 2005 | 2C1 (99.3%) | 99.3% | |||||||||
| Cr | 2005 | 2C1 (44.2%) | 1A4bi (26.5%) | 1A3bvi (15.3%) | 86.0% | |||||||
| Cu | 2005 | 1A3bvi (88.9%) | 88.9% | |||||||||
| Ni | 2005 | 2C1 (84.6%) | 84.6% | |||||||||
| Se | 2005 | 2A3 (22.7%) | 1A4bi (22.6%) | 1A1a (20.2%) | 1A3bvi (9.0%) | 1A4ai (7.7%) | 82.2% | |||||
| Zn | 2005 | 1A4bi (51.8%) | 2C1 (13.8%) | 1A4ai (10.9%) | 1A3bvi (8.9%) | 85.4% | ||||||
| DIOX | 2005 | 1A4bi (68.8%) | 5C1biii (11.7%) | 80.6% | ||||||||
| PAH | 2005 | 1A4bi (86.0%) | 86.0% | |||||||||
| HCB | 2005 | 1A4bi (58.1%) | 1A4ai (11.9%) | 1A1a (8.0%) | 1A2gviii (7.8%) | 85.7% | ||||||
| PCB | 2005 | 1A4ai (33.8%) | 1A4bi (30.2%) | 1A2f (21.6%) | 85.6% | |||||||