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

TIME SERIES

Party: BY 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	1A1a												28313	29107	28654	31654	30547	32378	27119	29960	41267	31921	25153	24405	22180	22874	21394	21510	21224	23197	22312	24788	24202	23792	24899	20466
NOx	2B10a												1838	1760	1839	2227	2635	2505	2705	2702	1352	2841	2886	2628	2308	3449	3518	3362	3863	3996	3998	4114	4649	4188	4188	4188
NMVOC	1B2ai													24146	32674	38736	357	356	352	348	344	340	336	332	329	329	329	329	330	334	338	338	347	362	375	388
NMVOC	1B2av																8420	9461	8160	8983	12068	9847	11272	14816	8741	8435	7857	8075	8277	8214	8015	8363	8063	8062	8062	9292
NMVOC	1B2b																6122	6498	6670	7021	6229	6516	7320	6450	6940	6582	6407	9373	6239	6293	6299	6158	5245	5240	5240	4569
NMVOC	2D3d														39396	48738	18919	20507	21635	22783	19489	21790	24248	25438	25743	23330	20235	20361	21180	23467	19576	20561	20832	19491	19491	19491
SOx	1A2e																7	7	8	9	9	86	70	1260	713	403	434	4139	4132	3512	2021	939	881	678	678	646
SOx	1A2gviii												24152	20291	16722	10878	1	1	1	1	1	2	1	9	5	4	4	26	26	22	15	8	9	9	9	8
SOx	1A3bi												36200	35200	36200	3300	21	23	25	32	29	31	37	39	38	37	33	34	34	57	65	58	35	38	30	30
SOx	1A4cii												7233	6206	5745	4554	24	26	25	27	30	33	36	37	32	33	31	31	32	28	28	33	32	32	32	33
SOx	NTCOMPL(NECD)																74625	86106	59415	69044	152932	68493	63273	69143	54744	56137	57062	57888	48357	46941	43886	65095	56985	54756	70899	39622
SOx	NTCOMPLIANCE																74625	86106	59415	69044	152932	68493	63273	69143	54744	56137	57062	57888	48357	46941	43886	65095	56985	54756	70899	39622
NH3	3B3																13904	10374	14480	14606	14986	15547	15751	16464	15020	12382	12820	12261	12623	10612	11446	11506	10845	10078	10011	9381
NH3	3B4h	166656	160931	152760	145202	138358	131037	125196	122185	118813	113168		107348	102517	91718	90767	3	4	4	4	5	5	6	6	6	6	5	6	6	0	6	5	5	4	3	3
CO	1A2gviii												30488	28416	28645	28363	64	70	79	84	76	89	28	51	50	51	52	38	36	36	58	101	123	132	132	130
CO	1A3bi												613600	35200	637000	651100	143194	111652	129333	183292	167098	144488	133772	131170	127482	125952	116620	109472	111484	110291	123116	114646	92714	100101	118136	103660
CO	1A4ai												20026	20364	21765	23103	13653	14841	13267	13211	13372	18008	20295	12327	41332	10653	8546	8762	9334	12742	17317	16393	17946	19837	19837	20574
CO	1A4ci																9	8	6	5	4	4670	5329	16492	15127	13565	13247	15111	14602	13838	12049	11420	12791	16035	16035	15525
CO	1A4cii												12460	11520	12240	11980	11818	12076	11421	11678	12331	12845	13046	13337	11507	11678	10873	10786	11075	9866	12123	12922	11296	13007	12995	13143

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	4666	4649	4413	4740	565	1979	2324	2067	2314	3664	3822	4094	3804	3036	4254	4268	4495	4652	4879	4176	4635	4925	4838	5873	6143
PM2.5	1A2gviii	1801	1895	2365	2879	3835	6	6	7	7	7	9	3	6	11	15	6	4	4	4	8	12	14	17	17	17
PM2.5	1A4ai	1093	1245	1118	1076	4544	1014	1022	863	808	746	973	1030	665	1776	593	440	449	414	540	697	747	823	915	915	950
PM2.5	3B4h	793	773	680	735	737	1	1	1	1	1	1	1	1	1	1	1	1	1	0	1	1	1	1	1	1
PM10	1A1a	7337	7228	6794	7233	780	2301	2717	2363	2673	4444	4444	4752	4416	3495	4917	4937	5208	5385	5646	4823	5410	5733	5631	6880	7130
PM10	1A2gviii	2683	2759	3372	4022	5267	6	6	7	7	7	9	3	6	11	15	6	4	4	4	8	12	14	17	17	17
PM10	1A4ai	1570	1771	1598	1522	8930	1069	1075	906	846	778	1013	1071	698	1830	622	458	467	427	554	714	771	850	946	946	982
PM10	2B10a						1857	1874	1996	1931	1615	2105	2169	2129	2055	2529	2635	2568	2761	2809	2594	2620	2960	2667	2667	2667
PM10	3B4h	3876	3776	3354	3598	3610	1	1	2	2	2	2	2	2	2	2	2	2	3	0	2	2	2	2	1	1
TSP	1A1a	9697	9506	8902	9457	909	2642	3152	2608	3019	5484	5014	5296	4946	3858	5450	5473	5790	5962	6252	5333	6120	6435	6320	7802	7911
TSP	1A2gviii	4347	4374	5144	5984	7625	6	6	7	7	7	9	3	6	11	15	6	4	4	4	8	12	15	18	18	17
TSP	1A4ai	5834	6110	5316	4959	35718	1127	1133	955	891	819	1066	1124	742	1927	660	484	491	448	582	750	811	894	995	995	1032
TSP	2B10a	3182	3252	3360	3859	4008	2996	2986	3189	3107	2372	3360	3453	3338	3165	4046	4196	4072	4440	4554	4266	4328	4890	4405	4405	4405
TSP	3B3						2607	1945	2715	2739	2810	2915	2953	3087	2816	2322	2404	2404	2367	1990	2146	2157	2034	1890	1877	1759
TSP	3B4h	8614	8390	7453	7995	8023	3	3	3	4	4	5	5	5	5	5	5	5	6	0	5	5	4	3	3	3
TSP	NATIONALTOTAL	79772	81968	79771	82768	121213	69320	74159	73476	74672	72245	76883	81483	81760	79329	77073	70964	69646	75390	75490	74782	75688	80450	77737	77322	77202
BC	1A3bi						183	216	213	244	192	199	267	277	279	253	220	224	233	256	188	289	366	390	389	424
BC	1A4ai						168	178	157	154	154	206	204	144	459	126	98	101	105	142	189	181	199	223	223	231
BC	1A4ci						0	0	0	0	0	53	60	178	163	145	142	170	158	148	127	120	135	178	178	172

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	11B																12900	46000	13600	9400	9400	8200	2900	1200	600	1300	63600	900	400	1400	8300	7600	200	700	700	759100
Pb	1A1a	13682318	13987220	9571032	7371369	6588340	5494442						2442000	2184716	1897850	1785143	547900	759500	135700	421400	2489000	541900	243100	348100	67200	139700	145900	216300	81100	111200	78000	628700	458200	448900	849300	133900
Pb	1A1b	6861	10188	11112	10182	9509	6959										544900	583900	586700	549200	535900	438600	471400	422400	394500	378800	431400	393500	294400	256100	252700	268600	230900	214900	214900	204800
Pb	1A2gviii	33272640	40008128	39589773	34416779	29595698	23010240						18783000	22604016	24848637	23820849				100	100	100		200	100	100	100	600	600	400	200	100	100	100	200	200
Pb	1A3bi	734382000	451391000	387408000	323558000	302008000	109946000						1195000	1069385	1032376	1832884	40200	45400	44300	47700	42800	43700	49000	50100	51000	49300	45800	46700	48100	50700	48800	54100	71200	65800	65100	69400
Pb	2A1																939300	1048400	1146100	1265700	1305000	1359400	1381200	1471800	1517000	1685500	1391300	1351000	1347100	1355800	1418400	1420700	1495400	1530000	1500800	1600800
Pb	2A3																1620000	1449700	1449700	1449700	2529000	2529000	1635000	1511000	1232300	1232300	1030300	851500	851500	470000	309000	296000	314000	345000	345000	361800
Pb	2C2																607400	677900	774800	824600	619500	681300	808000	808000	808000	947500	478300	478800	498400	486000	487900	504900	520100	701300	755300	796900
Pb	5C1bi						35000						4100000	3830272	71510	153657	327900	294600	188500	234100	95300	223100	221600	177600	232800	279700	304200	497100	544400	507200	347600	228100	287200	105100	244400	281700
Pb	NATIONALTOTAL	794121722	518656198	449680266	377117677	348419680	146961121	46340000	42200000	41240000	37520000		40677000	43824522	43422064	44878388	8211200	8808700	8413400	9279400	11768400	10395400	9600300	9743000	8508100	9169500	8183500	7890900	7986400	7769100	7558600	7757800	7638700	7221000	8161300	7835100
Pb	NTCOMPL(NECD)																8211200	8808700	8413400	9279400	11768400	10395400	9600300	9743000	8508100	9169500	8183500	7890900	7986400	7769100	7558600	7757800	7638700	7221000	8161300	7835100
Pb	NTCOMPLIANCE																8211200	8808700	8413400	9279400	11768400	10395400	9600300	9743000	8508100	9169500	8183500	7890900	7986400	7769100	7558600	7757800	7638700	7221000	8161300	7835100
Cd	11B																800	2900	900	600	600	500	100			100	4200	100		100	600	500				50600
Cd	1A1a	556950	570070	388400	301330	270640	226970						118000	108272	100022	96153	33800	41700	18600	29800	114300	43200	35500	23600	10100	14900	14900	19600	11100	12500	9900	33800	28600	27600	44200	16700
Cd	1A2gviii	906628	953653	870028	728195	571307	479590						680000	829745	936801	1008805
Cd	2C7c	373835	402737	396312	341151	294635	249016						533000	530215	561037	634606
Cd	5C1bi						3000						351000	327998	104139	12656	25500	22900	14500	18000	7300	17200	17000	13700	17900	21600	23400	38300	41800	39000	26800	17600	22200	8100	18900	21700
Cd	NATIONALTOTAL	2114401	2219344	1967419	1656996	1308126	1106038	1200000	1250000	1450000	1420000		1780000	1897606	1792307	1844305	619600	680200	666800	738000	763700	758800	775800	792300	687200	727200	700900	666700	696300	722000	731700	726400	727000	647700	722500	726600
Hg	1A2a																800	800	1000	1100	1000	14500	16200	18900	18300	11100	10800	300	300	300	600	3100	7300	6200	6200	900
Hg	1A2gviii	469095	489426	432600	360828	291205	246889						326000	396476	446477	490617	200	300	300	300	300	300	100	200	200	200	100	100	100	100	200	300	400	400	400	400
Hg	NATIONALTOTAL	1074470	1101821	879477	721448	601528	510870	297000	310000	392000	380000		522000	565299	603438	632103	239900	259200	243300	272500	349000	296300	291600	292900	291100	323600	282400	275900	268900	258500	260200	283900	292500	295100	313600	301100
Hg	NTCOMPL(NECD)																239900	259200	243300	272500	349000	296300	291600	292900	291100	323600	282400	275900	268900	258500	260200	283900	292500	295100	313600	301100
Hg	NTCOMPLIANCE																239900	259200	243300	272500	349000	296300	291600	292900	291100	323600	282400	275900	268900	258500	260200	283900	292500	295100	313600	301100

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	5C1bii																778	48	1141	4924	11117	9419	5557	1820	4575	4551	3841	3945	3295	4324	4019	1846	2434	3903	1861	1662
HCB	1A1a													36363	1041153		25600	28000	43200	42700	63200	74200	72800	57200	39600	42700	38300	62700	12000	11600	3600	7300	9200	8500	9400	12100
HCB	1A4ai													18984	2136835		13600	14000	11900	11200	10100	12600	11700	8000	23400	6900	5200	5400	4600	6600	8400	9400	10500	11900	12100	12300
HCB	5C1bii																4400	300	6500	28100	63500	53800	31800	10400	26100	26000	22000	22500	18800	24700	23000	10500	13900	22300	10600	9500
PCB	5C1bi													19100	27100	2417974	1371200	1761100	309500	351200	1900	500	4400	14600