Recalculations - Selenium (Se)

With no reportable changes within the National Total reported for 1990, the only notable percental changes occur for NFRs 1.A.2.g vii with -2.00 %, 1.A.4.a ii with -2.16 % and 1.A.4.c ii with plus 0.03 % with mutually canceling absolute changes.

Table 1: Changes in emission estimates for 1990

Submission 2024	Submission 2025	Difference	Reasoning
NFR Sector	[t]	relative	see description and reasoning in:
NATIONAL TOTAL	5.73	5.73	0.00	0.00%	sub-category chapters
NFR 1 - Energy	2.03	2.03	0.00	0.00%	sub-category chapters
1.A.2.g vii	0.000086	0.000084	-0.000002	-2.00%	here
1.A.4.a ii	0.0000159	0.0000156	-0.0000003	-2.16%	here
1.A.4.c ii	0.006629	0.006631	0.000002	0.03%	here
NFR 2 - IPPU	3.70	3.70	0.00	0.00%
NFR 3 - Agriculture	NA
NFR 5 - Waste	NA
NFR 6 - Other	NA

The small changes within the National Total reported for 2021 (-0.003 t or -0.10 %) result from a variety of revisions throughout NFRs 1 and 2**.

The significant percental change occuring in NFR 1.A.3.b iii (+130 %) results from a correction of errenous data reported with the previous submission.

Table 2: Changes in emission estimates for 2021

Submission 2023	Submission 2024	Difference	Reasoning
NFR Sector	[t]	relative	see description and reasoning in:
NATIONAL TOTAL	2.767	2.764	-0.003	-0.10%	sub-category chapters
NFR 1 - Energy	1.264	1.258	-0.007	-0.52%	sub-category chapters
1.A.1.a	0.0788	0.0783	-0.0005	-0.58%	here
1.A.1.b	0.815	0.806	-0.009	-1.07%	here
1.A.2.g vii	0.00013	0.00010	-0.00004	-27.0%	here
1.A.2.g viii	0.0196	0.0188	-0.0008	-4.25%	here
1.A.3.a i(i)	0.000000012	0.000000011	-0.000000001	-5.24%	here
1.A.3.a ii(i)	0.0000001468	0.0000001469	0.0000000001	0.07%	here
1.A.3.b i	0.004284	0.004267	-0.000016	-0.38%	here
1.A.3.b ii	0.00044	0.00043	-0.00001	-1.74%	here
1.A.3.b iii	0.0006	0.0014	0.0008	130%	here
1.A.3.b iv	0.0000801	0.0000809	0.0000008	1.02%	here
1.A.3.b vi	0.3101	0.3105	0.0003	0.10%	here
1.A.3.c	0.00257933	0.00257935	0.00000002	0.001%	here
1.A.3.d ii	0.0242	0.0246	0.0004	1.46%	here
1.A.4.a ii	0.000014	0.000015	0.000001	6.02%	here
1.A.4.b ii	0.00148	0.00155	0.00007	4.60%	here
1.A.4.c ii	0.006	0.008	0.002	31.5%	here
1.A.4.c iii	0.0006171	0.0006171	0.0000000	0.00%	here
1.A.5.b	0.000284458	0.000284459	0.000000001	0.001%	here
NFR 2 - IPPU	1.50228	1.50616	0.00388	0.26%	sub-category chapters
2.A.3	1.30332	1.30345	0.00013	0.01%	here
2.G	0.19876	0.20251	0.00374	1.88%	here
NFR 3 - Agriculture	NA
NFR 5 - Waste	NA
NFR 6 - Other	NA