Technical Annual Status Report (Stage 2) for the CLRTAP Inventory Review: Synthesis and Assessment Country report

TIME SERIES

Party: RO Submission year: 2026

The aim of this test is to identify instances of dips, jumps, and sudden changes in time series data reported by countries. The analysis was limited to data provided in NFR02, NFR09, NFR14 and NFR19 reporting format. Only data reported for at least three years were considered. Years where only NFR02 or NFR09 sectors were available have been converted to NFR14/NFR19. Only the converted sectors are in the time series analysis.

The table below shows data, where outliers in the time series were identified based on the following methodology: Reported time series data were log 10-transformed prior to analysis to reduce intra-series variability and improve general time series linearity. A linear regression was subsequently applied to the log-transformed values for each time series.

An individual value within the time series was identified as a dip/jump if the respective residual value (regression forecast value - reported value) is more than 2 standard deviations from the mean of all residuals in the time series. Only time series where the flagged data value contributed a significant fraction (>3%) of the national total for the given year are included in this dataset for expert review.

Time series where sigma grow largely (i.e. more than 20% of the time series mean value) because of extreme variation in the emission data are also flagged. Zero values indicate small numbers rounded to zero.

The test was performed for the following time series (if data was available):
Main pollutants: 1990 – 2024
HMs and POPs: 1990 - 2024
PMs: 2000 - 2024

If there is a number and a notation key reported, the difference is the number.

Color Key
	Indicates a dip in the time series data
	Indicates a jump in the time series data
	Indicates time series data with large sigma

MAIN (Unit = Mg)

		1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
NOx	1A1c	442	579	5650	6300	8563	8501	6809	13773	10712	7290	5708	6214	8992	8853	9844	9339	5929	5962	6262	3401	4060	3515	3211	3239	3937	2565	1875	3538	1341	3532	3787	4319	3350	4028	5989
NOx	1A2c	25976	14912	4305	5742	13267	15192	15069	11539	5822	5670	8778	12087	10431	9758	7641	7653	6987	6025	7024	5801	5560	6082	5256	4287	4131	3417	2670	3289	3471	3837	3750	4157	2251	1910	2039
NOx	1A2f	491	127	7762	6257	6220	6976	8039	6597	7021	5691	10238	11966	11481	6873	10408	9818	10653	11125	10900	8259	7416	8390	8703	7557	8220	9246	8967	9405	10229	10800	11133	11407	10178	9928	10679
NOx	1A2gvii			18890	8910	17144	14117	27215	19030	17939	13504	16398	19199	19968	14799	12441	12896	12913	18365	12124	6499	5662	6552	6882	5731	5297	5697	5012	4605	4236	3939	3690	3823	3529	3500	3269
NOx	1A2gviii	50925	52281	7452	3884	9865	9866	10120	9827	7812	8747	4839	4439	4731	4337	4904	3028	4046	4188	5211	2426	2702	2868	2596	2632	2586	2367	2472	2478	2591	2690	2474	2351	2599	2282	2562
NOx	1A3bii	4192	3927	4049	3773	4429	4208	5399	5276	5557	5120	5485	6212	6367	6949	6358	9060	9227	8395	8904	8891	8366	8893	9701	9630	10092	10244	11214	11737	12002	12260	11169	12016	13164	12819	13135
NOx	1A3c	19498	18966	18612	18257	16308	16485	16898	16839	14535	11876	16957	8449	11344	10044	11522	4254	4195	10635	9678	7305	8202	10862	10093	8970	6017	6249	6086	6331	5148	7010	6021	7048	5510	5404	5165
NOx	1A4bi	10335	9627	6852	6781	6127	6691	9313	11784	11254	10597	10825	8730	9644	11104	12256	12340	12030	11570	12969	12743	12965	12550	13370	12874	12652	12623	12743	13834	14099	14285	14848	16551	14975	14459	14043
NMVOC	1A2gvii			10430	3708	3673	1841	9393	6524	9571	5976	7402	6267	13591	6948	5854	7913	5515	4966	2829	2041	1420	1065	946	933	878	986	852	825	694	744	732	845	752	694	716
NMVOC	1A3bv	3919	4270	4694	5207	5785	6267	6505	6829	7241	7562	7764	8033	8237	8561	8949	8279	8389	8908	7648	7898	6498	6572	7117	5868	5597	5909	5667	5709	5789	5671	5534	3071	5750	5850	6528
NMVOC	2B10a	14772	9191	11519	10841	9624	12004	12100	7151	3917	6381	8740	8039	7893	11494	10606	14301	10009	10304	15334	8423	10143	11045	8769	6580	6919	4265	3604	4056	4749	4156	5669	3433	1090	756	1180
NMVOC	2D3a	26961	26517	26480	26445	26403	26338	26252	26187	26143	26105	26076	25382	25142	25019	24857	24712	24564	23989	23762	23593	23482	23362	23274	29638	29430	29174	19099	19108	18137	21806	37479	28844	23018	22665	22627
NMVOC	2D3e	24823	24823	24823	24823	24823	29492	11504	2806	2988	4992	3062	2078	1218	444	5550	5424	4501	6662	7671	6056	7596	5270	1673	1089	506	97	78	58	39	20	1	0	2	0	0
SOx	1A4ci	622	42	831	713	476	537	421	454	443	219	206	144	225	268	174	226	353	301	438	496	462	508	257	515	458	519	583	675	843	835	892	966	994	879	1027
NH3	3B3	51838	47114	42571	39889	33428	34296	35428	30538	30959	25140	20603	19169	21767	22075	28625	30470	30992	29327	27855	26096	24802	23483	22389	21998	21133	20470	19634	18357	16540	16421	16214	15971	14655	13692	14231
CO	1A1a	21324	19763	27745	25972	18238	17745	18767	14640	14237	12047	11567	10849	10666	11836	10769	9669	10545	10057	9312	7686	7627	8478	8062	7012	6902	7460	7354	8145	8192	7270	6891	7167	6648	6107	6091
CO	1A2gvii			54216	18712	16408	6814	46218	32066	49597	28291	35584	28510	70113	34535	29340	41146	27878	45415	25652	23302	17216	11572	8761	10728	10633	12518	10810	11165	8939	10669	10857	13162	11432	9917	10684
CO	1A4aii			8614	19371	6457	3580	15791	59566	39640	8059	29830	55592	25344	37720	38997	70135	46726	72455	37568	13696	14763	35700	18060	24981	21184	20455	29052	29801	40104	42430	30972	34474	31596	36799	35304
CO	2C3	20128	18476	12863	13408	14184	16872	16828	19644	20965	20889	20793	21578	22391	23766	25831	28620	32023	31509	37494	24172	24902	26880	24304	23703	23495	24762	24909	24811	25335	24041	23137	24231	9769	8146	8202

PM (Unit = Mg)

		2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
TSP	2B10a	52819	47137	46147	67696	61608	84721	57540	58670	89886	48476	59678	64697	50825	37400	39485	23177	18674	21528	25278	21772	31423	17966	2773	1313	5165
BC	1A2d	147	139	230	385	168	160	158	134	20	15	6	4	5	3	3	4	3	7	4	5	9	8	7	7	7
BC	1A2gvii	764	863	863	629	519	523	513	708	464	250	224	269	284	230	207	222	195	175	159	140	121	116	100	95	82
BC	1A5b	84	145	108	144	459	192	154	287	232	73	71	138	132	92	80	80	69	92	87	73	60	91	84	75	64
BC	1B2c	201	250	274	391	286	381	590	288	298	211	227	219	9	8	6	5	4	7	5	5	4	4	2	1	1
BC	NATIONALTOTAL	12508	10717	11321	12709	14044	14030	13611	13705	15329	14453	14771	13777	14052	13235	13134	12674	12797	13081	12850	12845	12624	13322	12727	12008	11375
BC	NTCOMPL(NECD)	12508	10717	11321	12709	14044	14030	13611	13705	15329	14453	14771	13777	14052	13235	13134	12674	12797	13081	12850	12845	12624	13322	12727	12008	11375
BC	NTCOMPLIANCE	12508	10717	11321	12709	14044	14030	13611	13705	15329	14453	14771	13777	14052	13235	13134	12674	12797	13081	12850	12845	12624	13322	12727	12008	11375

HM (Unit = g)

		1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
Pb	1A2a	11418980	9531373	7214848	6811772	7471062	8517197	7317880	8916684	7661298	4866952	4770745	4799252	5714591	6344779	7549964	7924116	7798776	6533974	5961101	3406698	4134746	3789214	2725593	2781931	2667369	3261849	3396032	2758157	2694735	2847820	2627873	3059203	2150001	975363	706006
Pb	1A2f	380024	98490	162866	82319	59002	103278	165847	71624	85347	59669	89990	106863	79994	83678	221336	602036	690964	768282	796445	606554	534505	574179	632808	539459	576863	651126	629942	654298	715260	776893	859662	911175	837173	754053	868340
Pb	1A4bi	4903927	3059798	2548462	2118962	1377090	1462362	3202427	3931885	3120934	3092050	3003321	2017890	2136383	2565319	3206841	3162743	2961100	3088427	4125713	3912908	4040640	3662578	3863766	3652659	3905891	3772164	3669862	3635368	3602249	3661543	3704503	3929512	3719938	3584831	3378186
Pb	1B2aiv	1256698	943584	792057	907200	824500	853700	978200	777127	898703	1030789	1062899	1090308	972628	907200	1007843	1088894	1166238	1102294	1085289	1041352	1120464	1261191	1108229	1270548	1288534	1103596	1240746	1257263	1287675	1329814	1183297	1084685	1200178	1100976	1147349
Pb	2G			6272	24304	25872	4704	6272	13328	17248	32326	108216	315622	560937	737046	1234266	1248634	664010	55573	489620	204560	621154	510769	390675	576601	489087	623670	232384	502498	717558	1210446	1153523	869264	1748084	1606531	1680754
Cd	1A1a	867933	730033	753190	801845	721764	742390	753378	648518	500144	500416	515066	546986	526517	593353	542040	504907	584439	569381	578592	507786	465319	567234	517420	390145	392736	398857	351285	360732	353190	324091	224505	250172	235082	183294	161356
Cd	1A2d			15	1	14	30917	30535	32985	33350	30917	44938	41163	72729	124332	52697	51487	51680	42608	6502	5033	2019	1210	1632	1071	825	1152	937	2137	1292	1389	2762	2637	2325	2142	2145
Cd	1A2gviii	16049	31460	12896	11992	96130	76100	76401	108912	75116	79347	86811	72910	99556	126050	78565	66606	90482	128027	84289	73338	91474	73349	89757	91787	96261	91964	120868	108555	111810	108139	89125	87990	94587	55737	58894
Cd	1A4bi	362378	282470	301355	421848	483820	550227	1186126	1591341	1459480	1369094	1338101	953446	968216	1194709	1450426	1488022	1399973	1459997	1866281	1848508	1919908	1713927	1789044	1693816	1702052	1611209	1622679	1662535	1648340	1658820	1668758	1773082	1674701	1602247	1482579
Cd	2C1	2566717	1716785	1252253	1285430	1351500	1375446	1288945	1316845	1072514	660470	491351	522592	525816	560764	619774	682703	695243	699690	576963	323758	488240	519726	462661	369415	393366	399323	393166	431853	425294	389062	295911	374584	309384	240035	233482
Cd	2C7a	477500	479800	482100	447500	395600	395600	561700	427900	328953	408411	281632	175289	159407	105595	57325	47700	49641	42065	30643
Hg	1A1a	1021579	909839	1004000	1037946	971631	999288	995478	817148	667258	674357	718836	728889	741081	864877	818229	763369	893549	897129	917434	791987	734584	895658	816925	616223	615378	625957	555445	568005	555792	510046	350797	390651	365488	286194	251240
Hg	1A2a	766961	638363	456881	435916	480398	551039	480188	566695	492213	318343	311435	309544	363050	400894	473995	495466	487596	413097	374627	214764	258337	238145	175187	180087	174061	209091	214796	178227	174686	182164	168389	193881	137501	64628	47570
Hg	1A2f	22404	5806	26578	20776	20927	23408	27484	22442	19003	17588	20004	21636	24433	17215	27016	307089	351289	385301	388410	293177	261771	288375	296562	255664	275642	311978	299356	312745	336109	364795	383288	396862	359295	350109	377073
Hg	1A2gviii	208457	166826	36011	26902	53070	41686	41922	40870	27714	34021	24921	23609	33571	24871	25493	18112	25845	22070	25906	16907	17400	16614	16289	16637	17048	16024	16507	17036	17888	18642	16975	16279	18340	16110	17758
Hg	2B10a	651518	477682	177000	168312	198547	214138	144874				682157	679094	611112	867893	968208	967104	1006838	860525	786110	387984	361008	600490	123638	768
Hg	2C1	683402	461088	320508	245986	347834	408170	337739	386345	374907	250957	256222	371393	389017	388104	400435	418672	384581	413647	258608	140356	186610	189687	171433	164591	173154	193641	189342	190055	191000	180241	154076	176048	138453	84658	74492
Hg	5C1biii	118599	120011	120814	122517	124643	125429	126954	142182	196020	548054	811674	1029186	919436	1014778	919426	731762	681018	539827	347868	258660	294924	277119	313794	320814	352350	397008	433080	503820	533123	579360	722250	960066	782298	809460	775602
Hg	NATIONALTOTAL	4361628	3364599	2606922	2441223	2588678	2862799	2696432	2430377	2217532	2282254	3298762	3646800	3558435	4127742	4140309	4236415	4347708	4024161	3619795	2573671	2605688	3021341	2397109	2053184	2114086	2211342	2175637	2249750	2294732	2336508	2255482	2587760	2263275	2044208	1988210
Hg	NTCOMPL(NECD)	4361628	3364599	2606922	2441223	2588678	2862799	2696432	2430377	2217532	2282254	3298762	3646800	3558435	4127742	4140309	4236415	4347708	4024161	3619795	2573671	2605688	3021341	2397109	2053184	2114086	2211342	2175637	2249750	2294732	2336508	2255482	2587760	2263275	2044208	1988210
Hg	NTCOMPLIANCE	4361628	3364599	2606922	2441223	2588678	2862799	2696432	2430377	2217532	2282254	3298762	3646800	3558435	4127742	4140309	4236415	4347708	4024161	3619795	2573671	2605688	3021341	2397109	2053184	2114086	2211342	2175637	2249750	2294732	2336508	2255482	2587760	2263275	2044208	1988210

POP (Unit = mg)

		1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	2024
PCB	1A1c	0	4590	274212	2	165242	380972	521562	395763	455773	116792	128012	136853	93844	1701703	469545	42503	18022	6462	29412	20911	10541	10031	8841	1	1531	1531	2623	1387	281	60	1	2	2	2	2
PCB	1A2c	1185240	8161	874848	325912	1205	986361	843063	345489	725920	877031	1148012	1503482	1678581	1528813	1405222	1368670	1177420	971551	1060291	1042101	1038536	1038027	1043805	838110	743080	721492	341711	337879	388963	292392	1858	10894	12007	9417	5736
PCB	1A5a	2070600	1716151	997390	77860	82790	240380	38930	12580	17850	0	134300	115940	43010	36380	155720	78201	12070	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0