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

TIME SERIES

Party: CH 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(i)	1214	1176	1243	1286	1318	1394	1461	1528	1612	1743	1838	1735	1602	1439	1357	1387	1456	1559	1667	1589	1597	1708	1775	1782	1769	1888	1958	2081	2204	2227	794	904	1671	1966	2144
NOx	1A3ai(ii)	10509	10181	10755	11127	11409	12067	12648	13223	13954	15089	15906	15016	13866	12451	11742	12008	12679	14048	15608	14226	15620	16704	17369	17607	17612	18841	21080	23228	25461	25752	11090	12462	21880	26837	29439
NMVOC	11C	61344	60352	62892	58021	67130	60199	54908	61502	61600	61773	63805	61848	62335	75222	60840	61677	68170	62645	61356	66679	59556	66436	64795	62976	64352	71083	64984	68294	74652	70535	69369	63197	77767	76717	73262
NMVOC	3B1a	6413	6487	6443	6379	6525	6541	6614	6504	6522	6469	6449	6567	6574	6607	6662	6906	7137	7373	7485	7089	6920	6969	7041	7037	7100	7105	7035	6980	6947	6860	6760	6748	6716	6585	6524
SOx	1A2d	3238	2829	2262	1842	1649	1581	1487	1524	1393	1124	664	902	727	1221	1526	940	1435	891	904	497	144	17	15	15	15	14	9	8	3	3	3	2	1	1	1
SOx	1A2f	3530	3158	2956	2702	2811	2651	2378	2160	2135	2142	2286	2283	1964	1833	1856	1810	1647	1726	1583	1575	1634	1575	1502	1516	1412	1249	1213	1154	1080	1108	1038	1193	1336	1072	669
SOx	1A2gviii	3534	2902	2174	2012	2113	2568	1786	1010	1342	782	638	1232	936	822	989	900	1071	842	752	722	750	592	651	476	395	415	430	376	365	323	298	257	276	238	168
SOx	1A3ai(i)	100	97	104	108	111	119	124	128	135	145	151	143	132	118	112	113	119	126	134	127	131	141	145	144	142	150	151	156	161	161	56	63	119	137	149
SOx	1A3ai(ii)	875	854	909	947	978	1043	1085	1127	1182	1269	1329	1254	1158	1039	980	996	1049	1122	1215	1161	1225	1312	1341	1354	1362	1411	1486	1533	1629	1652	598	676	1214	1461	1601
SOx	1A3biii	1706	1517	1296	915	673	436	364	399	438	431	393	300	269	178	89	8	9	10	11	10	10	10	10	10	11	10	10	10	10	10	10	10	9	9	9
SOx	1A3biii(fu)	1821	1630	1481	1108	780	506	457	484	522	499	443	337	299	202	98	9	9	10	10	10	10	10	10	10	11	11	11	11	11	10	10	10	9	9	9
SOx	1B2c	301	450	416	459	470	448	512	480	488	490	447	474	474	447	502	407	190	188	228	162	162	134	89	106	126	71	4	3	3	2	3	2	1	1	1
NH3	3B3	6717	6549	6543	6548	6155	6075	5363	5202	5423	5331	5266	5413	5315	5072	4946	5016	5038	4809	4505	4473	4519	4431	4276	4124	4153	4105	3993	3963	3838	3698	3682	3722	3697	3511	3380
CO	1A4ai	11356	12472	11959	11842	10836	11428	12354	10976	11242	11070	10139	10642	9958	10550	10357	10394	10517	9696	9470	9342	8954	6694	7187	7496	7068	7613	7867	7581	6968	6967	6597	7420	6229	6279	6024
CO	1A4bi	111881	119793	111026	106738	94761	96457	99169	84276	82382	78307	68886	69960	63403	64609	62299	62033	58293	50570	53884	50786	53015	41014	42624	43752	31672	33609	34457	32538	29568	29123	26664	29216	24203	23450	23141

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	1A3c	194	193	200	194	205	196	217	212	220	207	198	215	219	216	230	195	237	224	232	231	194	176	222	233	248
PM2.5	1A4bi	7283	7218	6346	6244	5740	5532	5017	4216	4320	4083	4234	3308	3388	3425	2528	2655	2688	2566	2335	2273	2121	2250	1893	1758	1725
PM2.5	NTCOMPLIANCE	16765	16383	15154	14990	14346	13922	13287	12284	12188	11568	11184	9717	9586	9344	8073	7946	7924	7745	7329	7103	6618	6837	6374	6042	6011
PM10	1A3c	1080	1090	1152	1126	1212	1172	1322	1305	1375	1307	1263	1381	1408	1388	1488	1260	1532	1450	1501	1495	1259	1141	1442	1517	1615
PM10	1A4bi	7679	7609	6689	6584	6054	5835	5293	4447	4559	4309	4468	3487	3570	3608	2658	2793	2829	2700	2458	2395	2233	2370	1992	1852	1817
TSP	1A3c	1425	1441	1524	1489	1605	1552	1754	1731	1825	1734	1677	1834	1869	1844	1976	1675	2035	1926	1993	1986	1674	1518	1916	2014	2146
TSP	1A4bi	8080	8005	7037	6925	6376	6143	5571	4681	4796	4532	4698	3667	3754	3794	2794	2936	2972	2833	2578	2510	2340	2483	2086	1939	1902
BC	11B	14	9	54	63	9	10	17	31	9	10	7	22	7	6	8	9	33	16	10	6	6	7	33	12	7
BC	1A4bi	1774	1770	1578	1588	1486	1458	1350	1146	1207	1116	1143	856	863	851	585	620	635	598	540	531	484	525	429	410	397

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	29818056	26259687	24148941	21867772	19614133	17770940	16084776	14233850	12652603	11050065	9406477	7141652	4667995	1952837	1940121	1925709	2012488	1922960	1843677	1768333	1763330	1671557	1678117	1636645	1437505	1492381	1567400	1614363	1669126	1677811	1661926	1660828	1664145	1719098	1873287
Pb	1A2f	4426400	5669420	6789966	7737961	8606059	9253931	6471381	5056881	3849430	2890142	2011566	2071870	1441132	1434471	1523864	1546922	772808	893760	869414	815691	831729	311081	277961	259601	266946	250670	245044	260658	261268	265855	250312	259220	258304	237834	219054
Pb	1A2gviii	974852	1023644	1035382	1089548	1031873	904106	1243975	779390	872010	803310	929459	935146	1009717	1038181	955028	901384	880761	888225	803643	808626	816630	740644	687553	652485	703028	671491	714290	708064	616039	549605	552878	672267	629186	574975	519120
Pb	1A3ai(ii)	441315	430655	458335	477754	493535	525964	547636	568797	596356	640878	671453	633804	585164	525141	495042	503379	506076	567244	473269	462352	412343	395670	364984	320800	333605	399898	297830	292027	284133	292336	183522	221186	309467	308630	264328
Pb	1A3aii(i)	2026909	1876602	1890173	1859547	1807491	1806241	1745778	1674299	1610953	1577240	1492486	1350211	1192655	1147935	1155557	1000018	968110	903071	880787	885847	812970	893128	794980	756768	782321	751560	711507	723632	702038	670198	703655	760820	697284	661321	654931
Pb	1A3aii(ii)	6244340	5781286	5823097	5728745	5568375	5564525	5378256	5158048	4962897	4859035	4597933	4159624	3674237	3536466	3559950	3080775	3048991	2979808	2941155	3011208	3092573	3252355	2930833	2707014	2747228	1375661	1295439	1329463	1248164	1227988	1373073	769810	705809	668702	652174
Pb	1A3bi	235637027	210716473	182291037	131858834	108338084	78993607	61045583	49504171	32155478	18525570	3729735	98175	98066	99910	101285	101897	102523	105917	109314	110317	110444	110140	112024	112944	113171	109722	109734	109708	111328	111186	96150	97933	97373	98278	96664
Pb	1A3bi(fu)	208538949	184730663	152923509	117338023	93835554	71447694	54370009	43099330	28270060	15972959	3259924	90069	91089	92250	93402	93814	94280	95870	98180	100784	102119	103056	104378	106022	107213	108812	110119	109171	110126	110635	89048	93298	97127	98350	97188
Pb	1A3bii	13599642	12008580	10195789	7235393	6036659	4201280	3087285	2385845	1487702	808375	154427	9494	9758	9749	10085	10594	11087	11577	12181	11871	11622	11820	12463	12564	12856	12705	13031	13069	13681	14033	15443	15310	15409	15573	15795
Pb	1A3bii(fu)	12036197	10528227	8554072	6439482	5229458	3800841	2750940	2078448	1309195	698346	136301	9929	10223	10386	10589	10855	11060	11445	11569	11636	11569	12013	12464	12566	12959	13410	13882	13811	14197	14621	14992	15367	15793	16159	16293
Pb	2C1	59857600	62400380	67238586	68943746	66435256	38692016	39887049	42628275	22908252	2775769	225128	227769	238894	241214	256746	242980	262196	265698	276032	197959	256324	279021	261385	257052	273432	268057	255819	262471	266508	231841	229795	263900	247169	192473	198531
Pb	2G	7272954	6598067	6028756	5427938	4872653	4557619	4212402	3612554	4047763	4587301	3792262	3203475	3903535	3415452	3000180	1849932	1710929	1514352	1252409	870341	428938	471695	460804	512240	443412	418307	365731	432421	444984	338544	344518	404998	451674	311174	385770
Cd	1A1a	1754419	1552498	1430680	1292363	1163164	1058185	960833	862097	783701	692509	597400	465654	324062	167666	171212	175351	191830	186275	193633	186398	196470	194888	205716	204819	187545	181782	174623	163643	157637	159102	157133	154090	154433	152403	159475
Cd	1A2gviii	30762	29104	30135	31445	30657	29534	32409	22676	25983	23111	25271	27264	26946	27415	26686	25159	24865	24681	23885	24363	24380	21520	20874	19657	19157	18409	19416	19253	17123	16379	15815	18989	17984	17215	15898
Cd	1A3bvi(fu)	64780	66201	65768	64668	63916	64463	64464	65398	66855	68479	70384	70389	70774	71475	72342	72520	73333	74193	75510	76543	78101	79315	80488	81747	82903	84221	85698	87025	87992	88765	77280	81202	84997	86508	87392
Cd	2C1	443304	462153	497991	510634	492048	286533	295395	315699	176141	27633	4173	4266	4557	4623	4952	4682	5061	5117	5312	3785	4925	5347	5052	4967	5302	5220	4985	5114	5198	4545	4518	5196	4855	3767	3902
Cd	2G	30226	29814	30309	28918	28262	28391	27437	26422	27545	28065	26428	24903	26375	26108	25641	21932	23701	24405	26058	27330	26044	27751	29508	31378	29530	29823	29008	30547	30471	27741	28335	29457	30078	26562	28101
Cd	NATIONALTOTAL	3186913	2936056	2777759	2573266	2354995	1973960	1829291	1679188	1415824	1134563	964760	788806	635450	482777	490639	488557	501215	493451	507761	491965	508151	481092	492864	499607	476921	469036	454476	438979	419440	416419	405478	416232	411013	400016	405097
Cd	NTCOMPLIANCE	3182264	2930908	2771522	2571295	2351208	1972321	1828215	1676362	1413179	1130409	960770	786091	633152	480387	487686	484819	496678	487647	500336	486086	503006	476962	487979	495053	473012	468935	455307	439023	418826	416293	399882	412809	411008	400437	405862
Hg	1A1a	3915254	3454268	3174830	2877030	2582802	2345390	2116079	1898640	1704485	1508151	1296358	1008016	688465	335349	337717	341094	362913	342613	336301	319439	318390	302936	304751	287979	284850	288072	295355	295555	297882	300056	300812	298294	288394	293543	308899
Hg	1A2f	225634	202463	190101	174800	181199	170105	142691	118365	103721	89796	78396	61282	48180	60687	79855	96244	112768	128635	140103	120667	113825	97929	77899	65415	68343	65011	64833	65753	64396	62926	61484	64212	63462	56328	53026
Hg	1A2gviii	13157	22182	12319	12044	11855	14701	25490	12850	13411	14587	13308	14918	16878	18364	15938	17647	19688	22108	22736	23860	24041	22732	23660	25113	26259	27327	28706	28921	26874	27721	28412	31092	29040	27463	26200
Hg	1A3bi(fu)	25511	26584	26226	26028	25212	25833	26066	26526	27084	27642	28319	28543	28297	28286	28311	27591	27486	26986	26895	27249	26721	26387	26225	25885	25711	25610	25615	25017	24885	25063	20302	21630	22414	22896	22857
Hg	1A4ai	14013	16006	16093	16411	15244	16606	18558	17001	18344	17977	17294	19323	17864	19413	19376	19863	20547	19286	21051	21612	23412	19595	22252	24410	21691	24283	26185	26048	24613	25591	26475	31254	27169	28318	25033
Hg	2B10a	384000	336000	288000	240000	192000	144000	115970	89430	64380	40819	18747	21412	17196	16969	16650	17630	16379	15008	14173	10680	13327	20504	12928	17395	22761	29052	19920
Hg	2C1	1108000	1155162	1244759	1276403	1229924	716104	738294	789049	264082	275475	40895	41919	45008	45717	49059	46365	50142	50662	52585	37411	48735	52881	50076	49228	52601	51840	49514	50796	51648	45219	44986	51746	48327	37458	38842
Hg	5C1biv	210900	183090	157170	133140	111000	110440	106400	95360	82160	63750	45010	28060	7600	10646	14177	16052	17828	19813	21764	23682	25567	25573	24958	33143	34980	38923	33136	27198	19588	20078	19486	19299	19535	21263	21064
Hg	NATIONALTOTAL	6309172	5794806	5489081	5114064	4683168	3860436	3586484	3317942	2526429	2266957	1740475	1404773	1022311	684857	709908	735437	778058	769937	787329	732383	744664	695806	668290	651090	635686	641549	636479	609396	595222	591167	583163	604727	574139	562655	571683
Hg	NTCOMPLIANCE	6306161	5791409	5484737	5111952	4680133	3858640	3584665	3315190	2523831	2263534	1737263	1402347	1020233	682568	707394	732753	775167	766412	783359	728997	741711	693267	665540	648584	633488	640953	636289	608892	594577	590723	580679	603024	573947	562549	571780

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	1A4bi	17674	18973	17631	17025	15176	15516	16101	13799	13622	13071	11627	11922	10897	11196	10857	10937	10457	9248	10061	9372	9622	7295	7361	7304	5095	5455	5673	5416	4988	4971	4605	5065	4218	4091	4071
HCB	1A2b	172000099	172000104	172000057	75	64	74	61	66	64	49	50	17	39	27	18	26	15	20	24	36	24	16	34	33	19	26	16	18	12	13	11	14	15	15	18
HCB	1A4ai	47995	53655	52136	51991	47443	50692	55591	49447	51783	50767	46684	50492	46238	49315	48110	48126	49974	45912	48062	47075	47763	36745	39371	40059	32950	36284	38554	37828	35542	36153	35756	41512	35529	36553	33593
HCB	1A4bi	322037	342523	318200	304702	270720	276074	285551	244698	241114	229662	202774	207049	188969	193979	185557	187153	178903	156462	168487	159642	167274	128750	133524	137306	99206	107314	112214	107917	99552	99770	89438	100443	84318	84004	85669
HCB	NATIONALTOTAL	172544306	172567201	172538756	523055	480741	491762	510200	457666	461750	455349	432957	449852	428813	437706	434113	444420	452967	423999	443643	432518	445506	386854	401158	400761	347994	360917	376069	371582	360207	362313	352273	371279	337750	340949	345886
HCB	NTCOMPLIANCE	172544306	172567201	172538756	523055	480741	491762	510200	457666	461750	455349	432957	449852	428813	437706	434113	444420	452967	423999	443643	432518	445506	386854	401158	400761	347994	360917	376069	371582	360207	362313	352273	371279	337750	340949	345886
PCB	2K	1525787748	1489839485	1454732035	1420552913	1387362682	1355193767	1324050983	1293910383	1264721006	1228156237	1182086482	1134067002	1083941738	1031587100	976919799	919906665	860571981	812240120	776897323	741640681	706455581	671343469	636322181	601426904	566709522	532238452	498097138	464382433	431202598	398674670	366921608	336069479	306243654	277565915	250151116
PCB	5E	215511294	224522831	230748472	234142989	234740777	232650777	228048737	221167377	212284931	708395716	722466106	599692713	491295753	396873682	315747938	247024991	189657502	142501873	104370383	74076370	50471608	41584541	33985281	27548707	22148279	17659725	13963996	10949490	8513591	6563611	5017187	3802256	2856684	2127644	1570825
PCB	NATIONALTOTAL	2331610494	2170736742	2102237553	2034191357	1967010002	1900826805	1833494821	1767110831	1698262161	2142057695	2079324104	1887697184	1711510410	1549898966	1404625387	1270210574	1145564410	1042847575	962791085	891262241	827061641	778171321	731065310	685724571	641945755	599588501	558665736	519078147	480814660	443881927	408288550	374101386	341331328	310030424	280301865
PCB	NTCOMPLIANCE	2331610453	2170736697	2102237494	2034191324	1967009961	1900826779	1833494793	1767110795	1698262127	2142057653	2079324066	1887697157	1711510391	1549898948	1404625370	1270210555	1145564390	1042847551	962791053	891262219	827061626	778171312	731065299	685724561	641945748	599588504	558665740	519078148	480814659	443881927	408288542	374101381	341331327	310030423	280301864