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

TIME SERIES

Party: DK 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)	6610	6067	6261	6108	6746	6877	7192	7306	7918	8398	8591	8757	7822	8427	9723	10236	10354	10617	10502	9286	9673	9995	10417	10526	11635	11374	12279	12683	13299	13740	4353	5716	9289	10591	12336
NOx	3Da2a	8344	8319	8352	8422	8119	7897	7882	7827	7978	7888	7806	8015	8232	8217	8399	8483	8214	8688	8514	8323	8370	8345	8312	8382	8433	8462	8537	8694	8823	8491	8579	8111	7730	7169	7216
NMVOC	2D3a	2173	2433	2899	2949	3593	3459	3294	3640	2826	2960	3279	3574	3032	3031	3364	3245	4315	2931	4258	4277	3567	2797	2125	3409	2582	3788	2748	2421	4303	2396	2883	3774	3831	6799	5726
NMVOC	2D3d	10046	11096	12118	11083	12460	11812	13771	12271	12102	11117	11512	10051	8572	8761	14576	13442	9250	9924	15075	11663	10664	11775	19397	14279	12290	7672	8341	8676	8830	10160	12189	10198	12314	8804	8778
SOx	1A3ai(ii)	502	461	476	464	513	523	548	556	603	639	654	665	570	600	693	730	735	755	748	656	683	703	710	701	766	747	802	829	865	887	276	361	614	705	823
SOx	1B2aiv	3335	2713	3147	2526	4266	3022	2614	1982	1441	1359	981	672	332	246	119	390	787	928	987	481	1019	1179	889	559	481	430	353	819	1182	791	571	363	379	1709	1038
SOx	2A6	2958	2505	2624	2612	3514	3153	3381	3740	3154	3153	3069	2347	2381	2178	2724	3013	4021	5001	2663	1364	1475	1164	1202	1219	675	732	888	1203	1024	1070	900	610	532	489	524
SOx	2B10a	1073	1029	1143	996	1047	1005	836	845	620	690	621	632	594	477	507	615	380	96	108	113	116	193	230	170	141	156	36	21	337	21	14	13	85	4	11
NH3	3B1b	4293	4356	4464	4362	4147	4144	4107	3972	3818	3788	4357	4516	4405	4268	4416	2802	2960	3554	3651	3567	3521	3675	3728	3877	3850	3852	3864	3727	3731	3673	3687	3654	3568	3450	3336
NH3	3B4h	5193	4770	5125	3412	4016	4024	4176	4809	5087	4517	4711	4912	5152	5006	5743	6255	6370	6285	6428	6553	6896	6802	6999	5698	5883	6190	5995	6374	5826	4550	4098			22	34
CO	1A2gvii	10301	10157	10023	9751	9800	9708	9784	9882	9925	9963	10021	9963	9846	9718	9804	9972	10341	10576	10648	7689	10122	10027	9880	9878	9893	9955	10100	10261	10358	10494	10352	10958	11058	11169	11505
CO	2A6	11148	11148	11148	11148	11148	8859	11611	9190	13271	12811	11450	10590	10524	11759	15598	11889	9035	6398	6544	2444	11	13	31	10	9	18	11	11	13	11	10	9	15	6	4

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
PM10	1A4ci	988	924	915	909	906	905	905	899	903	897	904	904	897	901	888	904	911	904	900	887	862	941	879	848	795
PM10	2A5b	1746	1311	2058	1215	1697	1849	1600	1199	5420	1656	1958	1478	1561	1518	2249	888	691	989	1553	827	1078	1059	1074	1093	940
PM10	3B3	1220	1287	1296	1314	1345	1373	1350	1391	1284	1234	1320	1296	1229	1202	1217	1228	1216	1202	1244	1197	1279	1283	1199	1038	1124
PM10	NATIONALTOTAL	32205	31994	31035	31238	31655	32267	32578	34502	37275	31499	32008	29676	28450	28186	27732	27183	27099	26791	25901	23719	22746	22754	21836	21349	20316
PM10	NTCOMPL(NECD)	32205	31994	31035	31238	31655	32267	32578	34502	37275	31499	32008	29676	28450	28186	27732	27183	27099	26791	25901	23719	22746	22754	21836	21349	20316
PM10	NTCOMPLIANCE	32205	31994	31035	31238	31655	32267	32578	34502	37275	31499	32008	29676	28450	28186	27732	27183	27099	26791	25901	23719	22746	22754	21836	21349	20316
TSP	2A5b	5808	4350	6856	4037	5645	6158	5318	3980	18094	5508	6530	4927	5202	5060	7502	2954	2292	3287	5177	2747	3590	3526	3570	3630	3126
TSP	NATIONALTOTAL	98301	97623	89080	87943	90307	91776	91419	92641	106275	90940	93000	89418	87423	86614	90964	87111	87893	94168	92391	88801	85611	85921	84304	81785	79790
TSP	NTCOMPL(NECD)	98301	97623	89080	87943	90307	91776	91419	92641	106275	90940	93000	89418	87423	86614	90964	87111	87893	94168	92391	88801	85611	85921	84304	81785	79790
TSP	NTCOMPLIANCE	98301	97623	89080	87943	90307	91776	91419	92641	106275	90940	93000	89418	87423	86614	90964	87111	87893	94168	92391	88801	85611	85921	84304	81785	79790

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	12005915	11545160	9862263	8579662	6664735	4547237	5118103	3815738	3537977	3154605	2938984	2870154	2631302	2232852	2093865	1735770	472595	538261	408038	352972	361166	369104	325628	381862	353705	335213	359892	369722	324361	306821	324503	350576	319504	313973	342192
Pb	1A3aii(i)	1537143	1425493	1380907	1331137	1641666	1791518	1643560	1562883	1401662	1389556	1371956	1345790	1330062	1254477	1305916	1298555	1246956	1330660	1183644	993021	931136	778192	849705	878246	527033	577385	636689	420353	666873	549406	599170	358188	74808	50049	41088
Pb	1A3bi	91882545	71545904	64827911	28108489	72802	73410	73763	75733	76702	77290	77811	77375	80072	83574	86568	86469	88952	94295	95473	95862	97978	102406	105868	109358	112759	118160	120638	122782	126509	126436	114943	116170	117790	118314	113773
Pb	1A3bii	5986757	4567160	4143547	1829467	22011	22022	22394	22832	23423	24390	25175	25861	26317	27784	29745	31153	34086	37587	37756	35529	35010	33554	32346	31051	29847	30012	29694	29719	29911	28521	26539	27115	28794	28932	29852
Pb	1A4bi	483591	595594	564842	578227	535255	494495	465459	468142	429675	425266	485495	557451	572206	645899	683870	793159	874781	1038888	1011775	1008141	1079304	972670	937699	971756	944784	1094257	1155117	1099043	1037925	954270	897403	923382	740917	796810	737558
Pb	2A3	475600	461100	420500	407450	435580	406000	406000	883000	523000	562000	330000	172000	220000	272000	436000	148000	12000	16000	18000	18000	24000	25000	116000	22000	9700	45149	48472	43348	45300	45837	40729	45582	45436	36249	39315
Pb	2C1	3281652	3225420	3220485	3322255	2377340	2021419	1103610	1169442	1104338	1137393	992865	1074127	327963	334601	361634	590295	275108	254379	253465	162016	262216	296132	274252	276592	338246	291934	300275	314059	342076	301567	253899	317635	316500	304103	266482
Pb	2G	2854307	3759612	4075898	3595805	4352248	6638065	6102827	4829329	7805588	14737670	3303515	2609775	3238888	4131911	5840927	2529179	2901378	60570	52575	58018	41000	35703	68873	67697	55038	77287	36312	38464	40403	44879	33294	63189	43079	19097	12367
Pb	5E	2464524	2546026	2768278	2432412	2448869	2828384	2859677	2639885	2362447	2538628	2485958	2445589	2368244	2669480	2305659	2395379	2455486	1662429	2626686	2740507	2421953	2042412	2103018	2358890	2584592	2279229	2196659	1911448	3079457	2248802	2250527	1954858	2411541	1570228	1730876
Cd	1A1b	32183	34008	36613	37688	39833	48436	49496	38768	34612	35743	35656	36236	34917	37343	36086	34439	36037	35843	31876	33665	31783	30628	33476	33097	34094	36152	32177	34655	33261	35591	33670	34581	32287	32972	31019
Cd	1A4bi	185063	204921	208071	218385	209685	207140	212856	214773	194493	196321	230739	265176	272880	308985	327419	381125	420589	499500	485833	483966	517635	466413	449803	466645	454824	526812	556067	529117	499682	459420	432046	444556	356708	383623	355096
Cd	2C1	49488	47614	47450	47408	34978	32047	27787	31881	30045	31413	26796	29071	10932	11193	12098	17847	9218	8535	8501	5426	8756	9904	9199	9254	11337	9719	10065	10459	11320	10119	8534	10606	10568	10154	8899
Cd	NATIONALTOTAL	1213611	1246760	1084831	1001127	848130	726188	745670	695747	654869	645926	638187	689238	659969	686766	681815	692951	668826	753397	730804	698319	727119	679751	659142	680150	667042	740112	764874	747795	716736	673974	640682	666744	574982	591022	552416
Cd	NTCOMPL(NECD)	1213611	1246760	1084831	1001127	848130	726188	745670	695747	654869	645926	638187	689238	659969	686766	681815	692951	668826	753397	730804	698319	727119	679751	659142	680150	667042	740112	764874	747795	716736	673974	640682	666744	574982	591022	552416
Cd	NTCOMPLIANCE	1213611	1246760	1084831	1001127	848130	726188	745670	695747	654869	645926	638187	689238	659969	686766	681815	692951	668826	753397	730804	698319	727119	679751	659142	680150	667042	740112	764874	747795	716736	673974	640682	666744	574982	591022	552416
Hg	1A1a	2448469	2528676	2268054	2183983	1939330	1731849	1809324	1343515	1126925	967132	570884	488447	502012	521759	365433	361687	309088	281575	316389	238150	217482	227194	155658	168488	173080	133479	155056	136197	120643	96170	107390	105576	123931	98366	91880
Hg	2C1	250195	249446	249380	269963	147591	147019	219515	207953	154018	123765	67318	40028	4373	4425	4782	17290	3625	3341	3332	2137	3458	3905	3625	3648	4471	3850	3958	4140	4511	3970	3338	4185	4169	4004	3507
Hg	5C1bv	45869	45505	46388	48334	47851	49065	48410	47995	46318	46840	46607	46670	47601	46995	46500	45608	46140	46736	46761	47455	47054	462	458	474	465	484	490	495	519	516	525	548	576	565	562
Hg	NATIONALTOTAL	3156143	3270928	2989813	2922173	2537143	2312292	2454488	1970616	1671562	1475393	995548	865749	836874	858739	719492	683341	609195	595290	594534	449593	426853	393112	306222	329333	333019	283825	330319	280344	271116	226628	232724	236290	254993	213052	201481
Hg	NTCOMPL(NECD)	3156143	3270928	2989813	2922173	2537143	2312292	2454488	1970616	1671562	1475393	995548	865749	836874	858739	719492	683341	609195	595290	594534	449593	426853	393112	306222	329333	333019	283825	330319	280344	271116	226628	232724	236290	254993	213052	201481
Hg	NTCOMPLIANCE	3156143	3270928	2989813	2922173	2537143	2312292	2454488	1970616	1671562	1475393	995548	865749	836874	858739	719492	683341	609195	595290	594534	449593	426853	393112	306222	329333	333019	283825	330319	280344	271116	226628	232724	236290	254993	213052	201481

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	2C3	1058	1058	1058	1058	1058	1058	877	1112	1154	997	1151	1168	1125	925	684	820	1096	1229	1268
HCB	2C3	604700	604700	604700	604700	604700	604700	501220	635700	659560	569560	657440	667580	642580	528340	391140	468600	626300	702360	724400
HCB	3Df	4288822	13250038	7292525	3333132	3666797	3370332	3762780	11712022	7569458	3520630	335835	45138	14648	28275	44495	14685	15182	35725	12672	9790	58955	97050	30725	48445	46712	41972	57022	183322	143527	97378	121005	197260	231125	207565	207565
PCB	2C3	102799	102799	102799	102799	102799	102799	85207	108069	112125	96825	111765	113489	109239	89818	66494	79662	106471	119401	123148