**Review Stage 2: Synthesis and Assessment Country report**

**KEY SOURCE ANALYSIS FOR
CLRTAP**

**
Party: RO**

**
Submission year: 2011**

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 |

Component | Key categories (Sorted from high to low from left to right) | Total | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|

NOx | 1 A 1 a (25.6%) | 1 A 3 b iii (23.7%) | 1 A 3 b i (18.2%) | 1 A 4 b i (6.8%) | 1 A 2 f i (5.3%) | 1 A 3 b ii (5.3%) | 84.9% | |||||

NMVOC | 1 A 4 b i (30.7%) | 1 A 3 b i (13.7%) | 1 B 1 a (6.3%) | 4 B 8 (6.0%) | 3 D 2 (5.0%) | 1 A 3 b v (4.8%) | 4 B 1 a (4.5%) | 4 B 9 a (3.1%) | 1 B 2 b (2.9%) | 1 A 3 b iii (2.8%) | 2 B 5 a (1.9%) | 81.8% |

SOx | 1 A 1 a (85.7%) | 85.7% | ||||||||||

NH3 | 4 B 1 a (28.5%) | 4 B 8 (22.4%) | 4 B 9 a (11.5%) | 6 B (8.2%) | 4 B 3 (6.8%) | 4 B 1 b (6.7%) | 84.2% | |||||

PM2.5 | 1 A 4 b i (86.5%) | 86.5% | ||||||||||

PM10 | 1 A 4 b i (75.2%) | 1 A 1 a (4.3%) | 1 A 2 a (3.9%) | 83.5% | ||||||||

TSP | 1 A 4 b i (52.2%) | 2 B 5 a (24.3%) | 1 A 1 a (12.6%) | 89.1% | ||||||||

CO | 1 A 4 b i (58.2%) | 1 A 3 b i (23.0%) | 81.3% | |||||||||

Pb | 2 C 1 (36.1%) | 1 A 2 a (20.5%) | 1 A 3 b i (11.8%) | 1 A 4 b i (11.3%) | 1 A 1 a (9.1%) | 88.8% | ||||||

Cd | 1 A 2 f i (31.9%) | 1 A 1 a (22.4%) | 1 A 3 d ii (16.7%) | 2 C 1 (11.6%) | 82.7% | |||||||

Hg | 1 A 3 d ii (52.3%) | 1 A 1 a (21.0%) | 1 A 1 c (8.9%) | 82.1% | ||||||||

DIOX | 1 A 4 b i (71.3%) | 6 C a (12.1%) | 83.4% | |||||||||

PAH | 1 A 4 b i (75.6%) | 2 C 3 (17.3%) | 92.9% | |||||||||

HCB | 1 A 4 b i (52.1%) | 6 C a (34.6%) | 86.8% | |||||||||

PCB | 2 C 1 (43.7%) | 2 C 5 b (26.3%) | 1 A 4 b i (13.7%) | 83.6% |