Review Stage 2: Synthesis and Assessment Country report
KEY SOURCE ANALYSIS FOR
CLRTAP
Party: LV 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 | 1A3biii (16.9%) | 1A3bi (11.8%) | 1A1a (11.3%) | 3Da1 (9.7%) | 1A3c (8.0%) | 2A1 (6.1%) | 1A4cii (5.3%) | 1A4bi (4.9%) | 1A2gviii (4.3%) | 1A3bii (3.6%) | 82.0% |
| NMVOC | 2019 | 1A4bi (23.8%) | 1A2gviii (11.0%) | 3B1a (9.9%) | 2D3i (9.6%) | 2D3d (8.1%) | 2D3a (6.5%) | 2D3g (3.4%) | 1A3bi (3.3%) | 2H2 (3.2%) | 3B1b (3.1%) | 81.9% |
| SOx | 2019 | 1A4bi (27.6%) | 1A1a (25.5%) | 1A2gviii (18.4%) | 1A4cii (7.0%) | 1A4ai (5.7%) | 84.1% | |||||
| NH3 | 2019 | 3Da2a (27.0%) | 3B1a (20.2%) | 3Da1 (19.5%) | 1A4bi (7.4%) | 3B3 (5.3%) | 3Da3 (3.9%) | 83.2% | ||||
| PM2.5 | 2019 | 1A4bi (58.7%) | 1A1a (13.4%) | 1A2gviii (10.5%) | 82.6% | |||||||
| PM10 | 2019 | 1A4bi (40.9%) | 2D3b (11.5%) | 1A1a (10.6%) | 3Dc (9.6%) | 1A2gviii (7.3%) | 2A5b (6.1%) | 86.0% | ||||
| TSP | 2019 | 2D3b (32.4%) | 1A4bi (25.9%) | 2A5b (12.2%) | 1A1a (7.1%) | 1A2gviii (4.6%) | 82.2% | |||||
| BC | 2019 | 1A4bi (48.6%) | 1A2gviii (21.5%) | 1A3bi (6.1%) | 1A4ai (4.9%) | 81.1% | ||||||
| CO | 2019 | 1A4bi (63.6%) | 1A3bi (7.8%) | 1A2gviii (7.1%) | 1A4bii (3.3%) | 81.9% | ||||||
| Pb | 2019 | 1A3bi (25.5%) | 1A4bi (20.6%) | 1A1a (13.8%) | 1A2gviii (13.6%) | 1A3bvi (12.6%) | 86.2% | |||||
| Cd | 2019 | 1A4bi (45.7%) | 1A2gviii (31.8%) | 1A4ai (7.2%) | 84.7% | |||||||
| Hg | 2019 | 1A1a (41.5%) | 1A4bi (16.9%) | 1A2gviii (10.9%) | 5C1bv (7.4%) | 1A4ai (5.4%) | 82.1% | |||||
| As | 2019 | 1A1a (88.3%) | 88.3% | |||||||||
| Cr | 2019 | 1A4bi (37.4%) | 1A2gviii (26.0%) | 1A1a (13.7%) | 1A3bvi (10.6%) | 87.6% | ||||||
| Cu | 2019 | 1A3bvi (70.5%) | 1A1a (9.7%) | 80.2% | ||||||||
| Ni | 2019 | 1A1a (60.9%) | 1A4bi (9.8%) | 1A2gviii (6.3%) | 1A3bvi (4.6%) | 81.6% | ||||||
| Se | 2019 | 1A2f (34.9%) | 1A1a (28.6%) | 1A4bi (11.9%) | 1A2gviii (8.0%) | 83.5% | ||||||
| Zn | 2019 | 1A4bi (41.2%) | 1A2gviii (28.6%) | 1A1a (13.5%) | 83.3% | |||||||
| DIOX | 2019 | 1A4bi (65.6%) | 5E (12.0%) | 1A2gviii (7.7%) | 85.3% | |||||||
| PAH | 2019 | 1A4bi (77.7%) | 6A (9.7%) | 87.4% | ||||||||
| HCB | 2019 | 3Df (38.7%) | 1A4bi (20.8%) | 1A1a (19.5%) | 1A2gviii (14.5%) | 93.5% | ||||||
| PCB | 2019 | 1A1a (41.1%) | 1A4bi (20.1%) | 1A2f (15.9%) | 1A4ai (15.6%) | 92.7% | ||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2010 | 1A3biii (25.5%) | 1A3bi (12.5%) | 1A3c (10.1%) | 1A1a (8.2%) | 1A4cii (6.5%) | 3Da1 (6.0%) | 1A4bi (4.9%) | 1A2gviii (2.5%) | 1A4ai (2.4%) | 1A3bii (2.3%) | 80.9% | |
| NMVOC | 2010 | 1A4bi (29.1%) | 2D3d (10.1%) | 3B1a (9.6%) | 1A3bi (9.2%) | 1A2gviii (6.2%) | 1A4ai (3.4%) | 2H2 (3.1%) | 2D3g (2.8%) | 3B1b (2.4%) | 2D3a (2.3%) | 2D3i (2.2%) | 80.4% |
| 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 (23.3%) | 3Da2a (23.3%) | 3Da1 (12.7%) | 1A4bi (11.1%) | 3B3 (8.2%) | 3Da3 (3.1%) | 81.7% | |||||
| PM2.5 | 2010 | 1A4bi (72.0%) | 1A2gviii (5.8%) | 1A4ai (3.5%) | 81.3% | ||||||||
| PM10 | 2010 | 1A4bi (54.5%) | 2D3b (8.4%) | 3Dc (7.0%) | 2A5b (6.5%) | 1A2gviii (4.4%) | 80.8% | ||||||
| TSP | 2010 | 1A4bi (36.6%) | 2D3b (25.2%) | 2A5b (13.7%) | 3Dc (3.7%) | 2A5a (3.2%) | 82.4% | ||||||
| BC | 2010 | 1A4bi (55.4%) | 1A2gviii (11.4%) | 1A3bi (7.0%) | 1A4ai (6.1%) | 1A3biii (4.9%) | 84.7% | ||||||
| CO | 2010 | 1A4bi (61.3%) | 1A3bi (20.4%) | 81.7% | |||||||||
| Pb | 2010 | 2C1 (97.9%) | 97.9% | ||||||||||
| Cd | 2010 | 2C1 (43.5%) | 1A4bi (33.5%) | 1A2gviii (12.1%) | 89.1% | ||||||||
| Hg | 2010 | 1A4bi (25.2%) | 1A1a (14.9%) | 2A1 (14.3%) | 1A4ai (13.8%) | 1A2gviii (6.8%) | 1A3bi (4.6%) | 5C1bv (3.7%) | 83.4% | ||||
| As | 2010 | 2C1 (99.4%) | 99.4% | ||||||||||
| Cr | 2010 | 2C1 (51.2%) | 1A4bi (24.7%) | 1A2gviii (8.8%) | 84.6% | ||||||||
| Cu | 2010 | 1A3bvi (72.4%) | 1A4bi (4.5%) | 2C1 (3.9%) | 80.8% | ||||||||
| Ni | 2010 | 2C1 (92.4%) | 92.4% | ||||||||||
| Se | 2010 | 1A1a (34.8%) | 1A4bi (27.7%) | 1A2gviii (8.8%) | 1A4ai (8.4%) | 1A3bvi (5.0%) | 84.6% | ||||||
| Zn | 2010 | 1A4bi (46.9%) | 1A2gviii (16.7%) | 2C1 (15.5%) | 1A4ai (9.4%) | 88.5% | |||||||
| DIOX | 2010 | 1A4bi (75.2%) | 5E (10.0%) | 85.2% | |||||||||
| PAH | 2010 | 1A4bi (83.6%) | 83.6% | ||||||||||
| HCB | 2010 | 1A4bi (43.1%) | 3Df (19.3%) | 1A2gviii (15.6%) | 1A1a (9.8%) | 87.8% | |||||||
| PCB | 2010 | 1A4bi (41.7%) | 1A4ai (39.7%) | 81.5% | |||||||||
| Component | Year | Key categories (Sorted from high to low from left to right) | Total | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NOx | 2005 | 1A3biii (26.4%) | 1A3bi (13.6%) | 1A3c (11.2%) | 1A1a (7.9%) | 1A4cii (6.4%) | 1A4bi (5.0%) | 1A4ciii (4.4%) | 3Da1 (3.7%) | 1A4ai (2.6%) | 81.3% | |
| NMVOC | 2005 | 1A4bi (32.6%) | 1A3bi (13.9%) | 3B1a (8.5%) | 2D3d (7.9%) | 2H2 (4.0%) | 1A4ai (3.8%) | 2D3a (2.9%) | 1A2gviii (2.4%) | 1B2b (2.1%) | 2D3g (2.1%) | 80.3% |
| 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 (25.8%) | 3Da2a (21.6%) | 1A4bi (15.5%) | 3B3 (9.7%) | 3Da1 (8.2%) | 80.7% | |||||
| PM2.5 | 2005 | 1A4bi (77.6%) | 1A4ai (3.7%) | 81.2% | ||||||||
| PM10 | 2005 | 1A4bi (61.3%) | 2D3b (8.6%) | 2A5b (5.8%) | 3Dc (4.8%) | 80.5% | ||||||
| TSP | 2005 | 1A4bi (41.7%) | 2D3b (25.9%) | 2A5b (12.4%) | 3Dc (2.7%) | 82.7% | ||||||
| BC | 2005 | 1A4bi (62.6%) | 1A4ai (7.1%) | 1A3biii (5.6%) | 1A3bi (5.3%) | 80.6% | ||||||
| CO | 2005 | 1A4bi (56.8%) | 1A3bi (28.9%) | 85.7% | ||||||||
| Pb | 2005 | 2C1 (97.5%) | 97.5% | |||||||||
| Cd | 2005 | 2C1 (41.5%) | 1A4bi (39.8%) | 81.3% | ||||||||
| Hg | 2005 | 1A4bi (29.4%) | 1A4ai (15.7%) | 1A1a (13.0%) | 1A2f (8.6%) | 5C1biii (5.3%) | 1A2gviii (4.4%) | 1A3bi (4.2%) | 80.6% | |||
| As | 2005 | 2C1 (99.4%) | 99.4% | |||||||||
| Cr | 2005 | 2C1 (49.7%) | 1A4bi (29.7%) | 1A4ai (6.4%) | 85.9% | |||||||
| Cu | 2005 | 1A3bvi (69.2%) | 1A4bi (5.7%) | 2C1 (4.2%) | 2G (4.0%) | 83.1% | ||||||
| Ni | 2005 | 2C1 (85.2%) | 85.2% | |||||||||
| Se | 2005 | 2A3 (24.1%) | 1A4bi (24.1%) | 1A1a (21.5%) | 1A4ai (8.2%) | 1A4ciii (3.9%) | 81.8% | |||||
| Zn | 2005 | 1A4bi (55.0%) | 2C1 (14.6%) | 1A4ai (11.6%) | 81.2% | |||||||
| DIOX | 2005 | 1A4bi (68.8%) | 5C1biii (11.7%) | 80.5% | ||||||||
| PAH | 2005 | 1A4bi (84.6%) | 84.6% | |||||||||
| HCB | 2005 | 1A4bi (58.1%) | 1A4ai (11.9%) | 1A1a (8.0%) | 1A2gviii (7.8%) | 85.7% | ||||||
| PCB | 2005 | 1A4ai (33.9%) | 1A4bi (30.2%) | 1A2f (21.6%) | 85.6% | |||||||