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

TIME SERIES

Party: IS 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	1A3ai(ii)	961	961	961	961	989	1143	1226	1299	1457	1503	1565	1463	1294	1362	1567	1629	1864	1585	1804	1219	1487	1535	1812	1901	2205	2521	3549	4397	4953	3517	1013	1652	3077	3563	3758
NOx	1A3di(i)	407	200	308	449	545	48	277	613	799	580	829	883	1258	297	309	36	326	227	977	177	5	913	495	1376	1134	2285	2932	3457	3784	2854	1092	1839	3555	4008	3685
NOx	3Da1	499	487	436	456	471	448	484	464	468	507	507	495	443	414	396	391	494	556	615	487	435	421	484	471	576	467	434	523	470	425	456	491	448	348	427
NOx	NATIONALTOTAL	25010	24058	25893	27104	26524	27731	27978	27843	26724	26453	25943	23388	24853	24326	24958	22373	22072	23795	21877	21520	20310	18553	18187	17583	17335	17707	16305	16638	16802	15707	14194	15375	14536	13852	14672
NOx	NTCOMPLIANCE	25010	24058	25893	27104	26524	27731	27978	27843	26724	26453	25943	23388	24853	24326	24958	22373	22072	23795	21877	21520	20310	18553	18187	17583	17335	17707	16305	16638	16802	15707	14194	15375	14536	13852	14672
NMVOC	1A3ai(i)	183	183	183	183	187	206	216	224	244	249	257	244	224	232	257	264	293	300	286	221	247	264	273	300	360	397	522	612	657	523	156	218	405	462	471
NMVOC	1A3ai(ii)	1763	1763	1763	1763	1803	2020	2137	2239	2461	2525	2613	2469	2231	2327	2616	2703	3034	2642	2948	2078	2504	2571	3093	3281	3753	4215	5639	6609	7306	5499	1560	2456	4466	5155	5402
NMVOC	1A3di(i)	18	9	13	19	21	2	12	24	33	25	34	38	55	12	13	1	10	7	26	4	0	29	13	46	43	92	111	125	144	125	50	80	179	209	205
NMVOC	1A4ciii	462	446	494	530	520	558	573	565	556	550	545	449	511	491	504	452	410	462	426	459	436	395	392	369	363	374	315	321	331	315	313	351	296	299	320
NMVOC	1B2av	185	176	189	196	195	202	213	221	224	228	228	213	222	220	234	226	239	249	230	214	206	204	202	210	215	245	280	308	332	291	207	285	323	335	320
NMVOC	2D3a	218	269	258	263	275	277	293	308	416	481	565	635	654	683	837	976	1090	1321	1073	704	626	639	647	678	761	909	1002	1242	1274	1337	1216	1113	1218	1598	1756
NMVOC	2H2	115	117	117	119	123	125	129	134	140	146	152	158	161	163	168	179	185	198	187	176	175	173	193	281	237	289	345	337	457	420	668	537	503	521	589
NH3	3Da1	546	533	478	499	516	490	530	508	512	556	555	542	486	453	434	428	541	609	673	533	532	527	508	521	771	598	499	610	546	568	596	614	630	579	738
CO	5C2	2125	2110	2059	1784	1655	1478	1335	1280	1101	920	899	805	750	653	374	131	124	118	112	107	102	95	95	95	95	95	95	95	95	95	11	5	95	95	95

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
PM2.5	1A1a	56	56	56	56	57	55	99	110	95	74	75	59	52	9	0	0	0	0	0	0	0	0	0	0	0
PM2.5	1A2f	42	52	40	33	52	35	43	68	60	29	10	22	0	0	0	0	0	0	0	0	0	0	0	0	0
PM2.5	1A3di(i)	19	17	24	7	6	2	16	11	55	11	0	44	31	65	44	82	129	170	177	113	19	43	85	90	65
PM2.5	1A3dii	5	14	12	9	18	8	33	64	27	20	17	5	4	8	12	7	6	7	28	29	6	4	6	4	3
PM2.5	2G	32	37	32	38	41	44	64	68	37	32	35	38	42	29	34	38	38	38	46	30	32	33	40	28	37
PM2.5	5C2	67	60	56	49	28	10	9	9	8	8	8	7	7	7	7	7	7	7	7	7	1	0	7	7	7
PM10	1A1a	83	83	83	83	85	82	148	164	141	110	111	87	77	13	0	0	0	0	0	0	0	0	0	0	1
PM10	1A3di(i)	22	21	28	9	7	2	19	13	65	13	0	52	36	77	52	96	151	200	208	133	22	51	100	106	77
PM10	2G	50	60	48	63	68	74	113	120	60	52	58	64	72	48	59	67	67	67	82	52	56	58	73	49	68
TSP	1A1a	111	111	111	111	113	109	197	220	189	147	149	117	103	17	1	1	0	0	0	0	0	0	1	1	1
TSP	1A3di(i)	22	21	28	9	7	2	19	13	65	13	0	52	36	77	52	96	151	200	208	133	22	51	100	106	77
BC	1A2e	16	21	24	18	14	10	9	10	12	11	8	8	10	7	3	6	7	3	4	2	2	3	12	6	9
BC	1A2gviii	4	4	4	10	9	6	7	5	1	0	0	0	0	2	0	1	1	0	0	0	1	1	1	1	1
BC	1A3bii	4	4	4	6	6	6	9	9	8	9	8	8	8	8	7	7	6	5	5	4	3	3	2	2	1
BC	1A3di(i)	1	1	1	0	0	0	0	0	1	0	0	1	1	2	1	3	4	5	5	4	1	2	5	5	5
BC	1A3eii	2	1	1	1	2	2	1	2	2	2	2	4	1	1	1	1	1	1	1	1	1	1	0	0	0
BC	2C2	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	3	1	2	1	1
BC	2C3	1	1	1	1	2	2	3	5	7	7	7	6	7	6	6	6	6	6	7	7	6	6	6	7	6
BC	5C2	28	25	24	21	12	4	4	4	4	3	3	3	3	3	3	3	3	3	3	3	0	0	3	3	3

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	1A1a	778	871	814	380345	380337	484358	629741	629440	629421	629387	629409	629387	629432	629332	643683	618840	1119290	1245972	1072205	835475	843191	663120	586103	96183	284	233	131	132	132	276	143	176	577	603	850
Pb	1A2f	64292	58418	40657	46641	45305	29907	22515	36907	47167	44270	45859	60242	45161	40963	62028	34299	47047	84454	74465	35202	12605	27126	0	0	0	0	0	0	0	0	0	0	0	0	1
Pb	1A3aii(i)	258829	258829	258829	258829	276203	219924	297279	321668	372075	324513	313765	272065	226689	229333	248630	296380	257657	233544	209414	206514	203626	141841	120705	100857	115025	108172	112968	131804	275116	265079	204340	331905	186606	133516	98497
Pb	1A3bi	2022473	1449480	1094908	832547	708251	591299	146222	205	212	216	214	216	218	223	231	240	250	249	242	243	233	226	219	219	216	223	236	237	233	222	189	202	205	204	202
Pb	1A3bii	109175	89671	71015	61338	52362	44364	10818	16	16	16	17	18	18	19	20	20	22	22	21	21	20	19	18	18	17	18	19	19	19	18	17	17	17	18	18
Pb	1A4ai	620	585	585	47351	47351	47351	47351	47351	47351	60871	60871	60802	60802	88813	78379	60664	60423	72903	42015	30952	36360	19343	19031	103	103	103	52	52	52	101	44	40	41	42	59
Pb	2G	89653	71363	121465	112037	105156	111035	139853	165790	213576	428899	296472	377740	261030	409473	443039	500393	805456	763922	306604	227304	224391	207025	184653	84493	66754	29368	29364	29606	36998	22903	24116	25667	33445	21690	31270
Pb	5E	56169	55685	55691	56084	57204	57519	56528	48393	48807	50498	50814	50951	50540	49479	34716	52653	48841	60778	86159	55306	40626	42281	50311	56086	63829	65195	116731	85012	67524	65275	49132	48200	48109	64179	71187
Pb	NATIONALTOTAL	2987788	2355083	2012124	2166574	2046133	1979343	1729725	1660969	1783296	1991460	1859306	1929935	1754352	1945057	2037118	2100991	2919900	3091128	2461431	2033340	1969070	1691787	1553904	939844	894048	857721	966435	967553	1095419	1039540	888478	1040037	918704	878251	856050
Pb	NTCOMPL(NECD)	2987788	2355083	2012124	2166574	2046133	1979343	1729725	1660969	1783296	1991460	1859306	1929935	1754352	1945057	2037118	2100991	2919900	3091128	2461431	2033340	1969070	1691787	1553904	939844	894048	857721	966435	967553	1095419	1039540	888478	1040037	918704	878251	856050
Pb	NTCOMPLIANCE	2987788	2355083	2012124	2166574	2046133	1979343	1729725	1660969	1783296	1991460	1859306	1929935	1754352	1945057	2037118	2100991	2919900	3091128	2461431	2033340	1969070	1691787	1553904	939844	894048	857721	966435	967553	1095419	1039540	888478	1040037	918704	878251	856050
Cd	1A1a	221	247	230	12618	12616	16023	20728	20641	20635	20629	20638	20630	20645	20613	21051	20241	36667	40796	35131	27357	27619	21715	19211	3202	92	76	44	44	44	92	48	59	193	202	284
Cd	1A2f	864	785	546	627	609	403	304	497	635	596	617	810	607	550	834	462	633	1135	1000	473	169	364	0	0	0	0	0	0	0	0	0	0	0	0	0
Cd	1A4ai	12	11	11	1540	1540	1540	1540	1540	1540	1982	1982	1981	1981	2898	2557	1978	1974	2382	1372	1010	1187	631	621	2	2	2	1	1	1	2	1	1	1	1	1
Cd	5C2	3806	3779	3688	3195	2965	2647	2392	2293	1971	1648	1610	1441	1343	1169	671	234	223	212	201	191	182	170	170	170	170	170	170	170	170	170	20	8	170	170	170
Hg	1A1a	117	129	120	10321	10320	13126	17037	16987	16982	16991	17004	16995	17011	16983	17339	16669	30209	33606	28945	22536	22756	17890	15831	2648	86	71	43	42	44	92	48	59	193	202	284
Hg	1A2f	3793	3447	2403	2754	2679	1787	1354	2198	2806	2640	2732	3572	2681	2418	3666	2062	2806	4981	4391	2076	744	1600	0	0	0	1	1	1	1	1	1	1	1	1	1
Hg	1A3di(i)	261	131	186	271	295	32	179	337	468	363	491	547	792	174	193	12	131	91	332	53	2	382	157	613	594	1272	1515	1678	1948	1742	728	1173	2625	3064	3037
Hg	1A4ai	11	12	11	1272	1272	1271	1269	1269	1269	1633	1633	1632	1632	2387	2107	1631	1628	1964	1130	832	978	521	513	4	3	3	3	3	3	4	2	3	3	4	4
Hg	2C2	900	721	780	965	946	1023	1038	1023	895	1036	1497	1602	1004	1375	1571	1354	3210	1383	2339	1411	1143	833	2642	2627	2396	1967	805	443	163	7	6	7	7	5	5
Hg	5C2	125875	124866	121500	103455	95356	84105	75355	72628	61542	50329	47309	43192	40073	34072	16005	196	198	205	166	164	166	17	17	17	17	17	17	17	17	17	2	1	17	17	17

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
DIOX	1A3ai(ii)	6	6	6	6	6	6	7	7	8	8	8	8	7	7	8	9	10	8	9	7	8	8	10	10	12	13	18	21	23	17	5	8	14	16	17
DIOX	1A3di(i)	1	1	1	2	2	0	1	2	3	2	3	3	4	1	1	0	2	1	6	1	0	5	3	8	6	11	16	20	21	15	3	6	14	16	13
DIOX	5E	85	85	85	85	85	85	85	85	85	85	85	85	85	102	180	138	126	112	133	117	111	81	117	85	138	70	88	98	97	115	106	105	114	168	153
HCB	1A3di(i)	718	350	551	804	999	84	485	1114	1429	1021	1483	1567	2231	536	552	71	634	442	1951	361	11	1812	1029	2775	2256	4539	6139	7393	8147	6322	1942	3430	7653	8710	8133
HCB	2C3															11786	11256	11537	11392	12361	15242	10182	4866	6233	14605	12100	11000	10500	14585	15620	10815	10980	18055	15725	19495	17645
PCB	1A2f	81562	74110	51575	59167	57470	37921	28540	46803	59816	56136	58154	76409	57277	51965	78685	43478	59658	107141	94470	44658	15991	34413
PCB	1A3di(i)	468	166	578	848	1698	40	265	1776	1730	797	1709	1369	1748	670	475	254	1953	1367	7117	1447	46	5466	4025	7936	4986	8827	15104	20466	21012	12735	922	3383	7428	7276	4058