Recalculations - Polychlorinated biphenyls

Last updated on 28 Feb 2020 09:57 (cf. Authors)

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Revision of PCBs emissions over time

The negligibly small changes within the National Total reported for 1990 (+0.0123 kg | +0.001 %) result from newly implemented emissions from NFRs 1.A.3.b i, ii, iii and iv.

Table 1: Changes in emission estimates for 1990

PCBs_1990.png
Submission 2019 Submission 2020 Difference Reasoning
NFR Sector [kg] relative see description and reasoning in:
NATIONAL TOTAL 1,735.47 1,735.48 0.0123 0.001% sub-category chapters
NFR 1 - Energy 588.65 588.66 0.0123 0.002% sub-category chapters
1.A.3.b i NE 0.0111 0.0111 here
1.A.3.b ii NE 0.0003 0.0003 here
1.A.3.b iii NE 0.0004 0.0004 here
1.A.3.b iv NE 0.0005 0.0005 here
NFR 2 - IPPU 1,146.82 1,146.82 0.00 0.00%
NFR 3 - Agriculture NA, NO
NFR 5 - Waste 0.0000005 0.0000005 0.00 0.00%
NFR 6 - Other NA

The changes within the National Total reported for 2017 (-8.33 kg | -3.52 %) are dominated by revisions in NFRs 1.A.1.a (-6.89 kg), 1.A.4.a i (+1.59 kg) and 1.A.4.b i (-0.93 kg).
Additional but much smaller changes occur within sub-categories of NFR 1, including newly implemented emissions from NFRs 1.A.3.b i, ii, iii and iv.

Table 2: Changes in emission estimates for 2017

PCBs_recent.png
Submission 2019 Submission 2020 Difference Reasoning
NFR Sector [kg] relative see description and reasoning in:
NATIONAL TOTAL 236.36 228.03 -8.33 -3.52% sub-category chapters
NFR 1 - Energy 157.27 148.94 -8.33 -5.30% sub-category chapters
1.A.1.a 112.58 105.69 -6.89 -6.12% here
1.A.3.b i NE 0.0019 0.0019 here
1.A.3.b ii NE 0.0002 0.0002 here
1.A.3.b iii NE 0.0001 0.0001 here
1.A.3.b iv NE 0.0002 0.0002 here
1.A.3.d ii 0.142 0.142 -0.001 -0.54% here
1.A.4.a i 2.75 4.34 1.59 58.00% here
1.A.4.b i 22.23 21.29 -0.93 -4.19% here
1.A.4.c i 0.68 0.38 -0.30 -43.89% here
1.A.4.c iii 0.0010769 0.0010766 -0.0000003 -0.03% here
1.A.5.a 0.024 0.020 -0.004 -17.91% here
1.A.5.b 0.0004444 0.0004440 -0.0000004 -0.09% here
NFR 2 - IPPU 79.09 79.09 0.00 0.00%
NFR 3 - Agriculture NA, NO
NFR 5 - Waste 0.000002 0.000002 0.00 0.00%
NFR 6 - Other NA
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