Recalculations - Selenium

Last updated on 28 Feb 2020 09:52 (cf. Authors)

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Revision of Selenium emissions over time

The fundamental changes in the National Total reported for 1990 (-1.39 t | -19.69 %) result almost entirely from revised estimates in NFR 1.A.3.b vi (-1.39 t | -85.43 %).
In addition, far less significant changes occur throughout NFR 1.A.3.b.

Table 1: Changes in emission estimates for 1990

Se_1990.png
Submission 2019 Submission 2020 Difference Reasoning
NFR Sector [t] relative see description and reasoning in:
NATIONAL TOTAL 7.05 5.66 -1.39 -19.69% sub-category chapters
NFR 1 - Energy 3.48 2.09 -1.39 -39.94% sub-category chapters
1.A.3.b i 0.006454 0.006453 -0.000001 -0.02% here
1.A.3.b ii 0.0002 0.0002 0.0001 46.88% here
1.A.3.b iii 0.0011 0.0010 -0.0001 -8.30% here
1.A.3.b iv 0.00010 0.00011 0.00001 5.06% here
1.A.3.b vi 1.62 0.24 -1.39 -85.43% here
NFR 2 - IPPU 3.57 3.57 0.00 0.00%
NFR 3 - Agriculture NA, NO
NFR 5 - Waste NA, NE, NO
NFR 6 - Other NO

The fundamental changes in the National Total reported for 2017 (-1.95 t | -20.68 %) result mainly from newly reported emissions in NFR 1.A.3.b vi (-2.06 t | -85.78 %).
A variety of far less significant changes occur throughout NFR 1.

Table 1: Changes in emission estimates for 2017

Se_recent.png
Submission 2019 Submission 2020 Difference Reasoning
NFR Sector [t] relative see description and reasoning in:
NATIONAL TOTAL 9.42 7.47 -1.95 -20.68% sub-category chapters
NFR 1 - Energy 3.60 1.66 -1.95 -54.06% sub-category chapters
1.A.1.a 0.1160 0.1165 0.0005 0.41% here
1.A.1.b 1.01 1.12 0.11 11.04% here
1.A.2.g vii 0.000124 0.000122 -0.000002 -1.56% here
1.A.2.g viii 0.020 0.019 -0.001 -4.73% here
1.A.3.b i 0.00488 0.00490 0.00002 0.44% here
1.A.3.b ii 0.0003 0.0004 0.0001 46.98% here
1.A.3.b iii 0.0017 0.0016 -0.0001 -7.72% here
1.A.3.b iv 0.000090 0.000088 -0.000002 -1.77% here
1.A.3.b vi 2.40 0.34 -2.06 -85.78% here
1.A.3.c 0.0032 0.0026 -0.0005 -17.14% here
1.A.3.d ii 0.0373 0.0371 -0.0002 -0.53% here
1.A.4.a ii 0.0000180 0.0000181 0.0000001 0.59% here
1.A.4.b ii 0.002216 0.002215 -0.000001 -0.04% here
1.A.4.c ii 0.0043 0.0037 -0.0006 -13.24% here
1.A.5.b 0.0011526 0.0011521 -0.0000005 -0.04% here
NFR 2 - IPPU 5.81 5.81 0.00 0.00%
NFR 3 - Agriculture NA, NO
NFR 5 - Waste NA, NE, NO
NFR 6 - Other NA
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