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

TIME SERIES

Party: LI 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	1A2gviii	30	28	27	27	24	23	21	21	21	19	16	15	16	17	16	15	15	12	13	10	9	8	8	8	8	8	7	8	7	7	6	6	6	5	5
NMVOC	1A3bi	330	328	297	262	219	205	188	179	155	147	145	130	110	98	90	83	70	68	65	57	47	42	40	37	32	24	22	21	19	18	15	16	15	20	14
NMVOC	1A3bii	120	128	126	117	101	98	91	87	74	71	69	62	52	46	42	38	31	31	29	25	19	17	16	15	12	10	9	8	8	7	6	7	6	8	5
NMVOC	1A3bv	124	118	104	88	71	63	53	47	38	33	29	26	22	20	19	18	16	16	16	16	15	14	14	14	14	13	13	13	13	13	13	13	12	1	1
NMVOC	1A4bi	14	10	13	12	15	11	10	12	12	12	19	12	12	14	14	14	15	16	15	16	15	15	15	13	13	15	14	13	15	14	11	11	12	11	12
NMVOC	1B2av	72	76	75	70	61	58	55	53	46	43	41	35	28	27	26	25	22	22	22	20	18	17	17	16	14	11	10	9	9	9	7	8	7	9	6
NMVOC	3B1b	21	21	20	19	20	21	21	20	19	17	17	16	18	19	21	22	23	25	25	25	25	26	27	26	27	26	28	25	25	27	28	28	28	28	28
NMVOC	NTCOMPL(NECD)	1538	1482	1379	1251	1124	1048	964	904	817	780	752	695	629	588	542	460	503	496	487	470	445	432	426	410	395	377	367	357	355	352	272	271	271	267	258
SOx	1A2gviii	18	14	12	13	12	12	11	12	11	8	6	7	8	8	8	7	7	4	4	4	3	3	3	3	1	2	1	1	1	1	1	0	0	0	0
SOx	1A3bi	9	11	10	10	8	8	8	8	8	9	6	5	4	3	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
SOx	1A3bii	4	6	5	4	2	2	2	2	3	3	2	2	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
SOx	1A3biii	7	9	7	5	2	2	2	2	2	3	2	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
NH3	1A3bi	9	13	16	18	18	20	21	23	23	24	35	33	28	25	23	21	18	17	16	14	11	9	8	7	5	4	3	3	3	3	2	2	2	3	2
NH3	1A3bii	0	1	1	2	2	2	3	3	4	4	6	6	6	5	5	5	4	4	4	3	3	2	2	2	1	1	1	1	1	1	1	1	1	1	1
NH3	3B1b	18	17	17	16	17	18	18	17	16	15	15	14	16	17	20	22	23	25	26	26	26	27	29	27	29	28	29	27	27	29	30	30	31	30	31
CO	1A3bi	1557	1462	1246	1036	814	715	614	558	461	417	391	344	291	262	240	223	185	182	174	152	124	114	115	108	97	75	72	72	71	70	63	69	62	87	62
CO	1A4bi	150	107	149	136	164	123	109	122	128	129	205	120	117	141	141	142	145	170	153	162	149	156	154	129	134	149	142	132	154	141	112	107	126	118	132
CO	NATIONALTOTAL	3212	3189	3002	2675	2305	2131	1951	1894	1689	1631	1682	1443	1260	1211	1137	1083	970	1004	956	900	779	742	725	648	598	548	514	486	508	473	398	397	407	433	402
CO	NTCOMPL(NECD)	3212	3189	3002	2675	2305	2131	1951	1894	1689	1631	1682	1443	1260	1211	1137	1083	970	1004	956	900	779	742	725	648	598	548	514	486	508	473	398	397	407	433	402
CO	NTCOMPLIANCE	3212	3189	3002	2675	2305	2131	1951	1894	1689	1631	1682	1443	1260	1211	1137	1083	970	1004	956	900	779	742	725	648	598	548	514	486	508	473	398	397	407	433	402

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	1A2gvii	3	3	3	3	2	3	2	2	2	1	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0
PM2.5	1A3bi	3	2	2	2	2	2	2	2	2	2	2	1	1	1	1	1	0	0	0	0	0	0	0	0	0
PM2.5	1A3bii	4	3	3	4	4	4	4	4	4	3	3	3	3	2	2	1	1	1	1	1	0	0	0	0	0
PM2.5	1A3biii	5	3	3	4	3	4	4	3	3	3	2	2	2	2	1	1	1	1	1	1	0	0	0	0	0
PM2.5	1A4ai	4	2	3	4	4	5	5	7	7	9	9	9	8	6	6	6	5	5	6	5	4	3	4	4	4
PM2.5	1A4cii	2	2	2	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	0
PM2.5	2A5b	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	0	0	1	0	0	1	0	0	1	0
PM2.5	5C1a	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	0	0
PM10	1A2gvii	3	3	3	3	2	3	2	2	2	1	1	1	1	1	1	1	1	1	0	0	0	0	0	0	0
PM10	1A3bi	3	2	2	2	2	2	2	2	2	2	2	1	1	1	1	1	0	0	0	0	0	0	0	0	0
PM10	1A3bii	4	3	3	4	4	4	4	4	4	3	3	3	3	2	2	1	1	1	1	1	0	0	0	0	0
PM10	1A3biii	5	3	3	4	3	4	4	3	3	3	2	2	2	2	1	1	1	1	1	1	0	0	0	0	0
PM10	1A4ai	4	3	3	4	4	5	6	8	8	9	10	9	8	6	6	6	6	5	6	5	4	4	4	4	4
TSP	1A4ai	4	3	3	4	4	5	6	8	8	10	10	10	9	7	6	7	6	5	6	5	4	4	4	4	5
TSP	NATIONALTOTAL	172	162	163	156	158	156	155	160	162	149	136	140	133	129	125	119	119	118	118	114	113	112	110	115	100
TSP	NTCOMPL(NECD)	172	162	163	156	158	156	155	160	162	149	136	140	133	129	125	119	119	118	118	114	113	112	110	115	100
TSP	NTCOMPLIANCE	172	162	163	156	158	156	155	160	162	149	136	140	133	129	125	119	119	118	118	114	113	112	110	115	100

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	27656	27656	27656	27656	27656	27656	6914	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	14	17	15	21
Pb	1A3aii(i)	3592	3592	3592	3592	3592	3592	3628	3663	3698	3733	3769	3804	3972	3863	3754	3644	3535	3426	3317	3208	3098	2989	2880	2592	2970	2814	1949	1205	1403	3973	2836	2940	2969	3667	4846
Pb	1A3bi	1133617	1086205	944470	728939	553855	427662	323467	264255	159826	91239	19436	18208	16665	15966	15479	14991	13744	13841	13950	12851	11619	11090	11470	11097	10077	8130	7637	7504	7399	7311	6580	6953	6251	8712	6120
Pb	NATIONALTOTAL	1524417	1464431	1285304	1010623	779078	614807	461220	377951	247899	169062	79046	76877	77100	77734	74270	68948	64547	67838	64697	60995	56870	58298	59479	58585	50286	49633	46635	46314	48603	44589	43125	43556	43207	45805	44647
Pb	NTCOMPL(NECD)	1524417	1464431	1285304	1010623	779078	614807	461220	377951	247899	169062	79046	76877	77100	77734	74270	68948	64547	67838	64697	60995	56870	58298	59479	58585	50286	49633	46635	46314	48603	44589	43125	43556	43207	45805	44647
Pb	NTCOMPLIANCE	1524417	1464431	1285304	1010623	779078	614807	461220	377951	247899	169062	79046	76877	77100	77734	74270	68948	64547	67838	64697	60995	56870	58298	59479	58585	50286	49633	46635	46314	48603	44589	43125	43556	43207	45805	44647
Cd	1A1a	173	173	173	173	173	173	43	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	2	2	2
Cd	1A4bi	89	62	86	77	94	68	59	67	70	70	114	64	61	74	73	73	74	87	77	79	71	72	70	56	56	61	58	52	60	54	41	40	48	46	53
Hg	1A4bi	120	97	124	121	131	113	104	116	125	123	169	121	123	142	144	147	150	155	152	162	157	156	160	150	144	161	156	152	165	161	140	141	147	141	151

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	26	18	25	23	28	21	18	20	21	22	35	20	19	23	23	23	24	28	25	26	24	25	24	20	21	23	22	21	25	23	18	18	21	20	22
HCB	1A4bi	523	365	492	446	533	395	344	387	402	399	607	355	344	404	396	389	393	432	388	403	354	357	344	281	273	304	287	267	307	284	226	214	251	239	265