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Report - DCE - Nationalt Center for Miljø og Energi

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'VHJUJWF FNJTTJPOT /'3 TFDUPS #<br />

This chapter includes fugitive emissions in the NFR sector 1B.<br />

4PVSDF DBUFHPSZ EFTDSJQUJPO<br />

According to the categorization in the reporting <strong>for</strong>mat <strong>for</strong> the UNECE<br />

CLRTAP fugitive emissions is a sub-category under the main-category Energy<br />

(Sector 1). Fugitive emissions (Sector 1B) is segmented into subcategories<br />

covering emissions from solid fuels (1B1), oil (1B2a), natural gas<br />

(1B2b) and from venting and flaring (1B2c). The sub-sectors relevant <strong>for</strong> the<br />

Danish emission inventory are shortly described below according to Danish<br />

conditions:<br />

• 1B1c Fugitive emission from solid fuels: Emissions from solid fuels are<br />

only relevant <strong>for</strong> the Danish national emission inventories in the case of<br />

particulate emissions. Other components are not occurring, as these<br />

emissions should be included in the inventory <strong>for</strong> the nation housing the<br />

coalmines.<br />

•<br />

• 1B2a Fugitive emissions from oil include emissions from offshore activities<br />

and refineries.<br />

• 1B2b Fugitive emissions from natural gas include emissions from transmission<br />

and distribution of natural gas. Emissions from gas storage are<br />

included in the transmission.<br />

• 1B2c Venting and flaring include activities onshore and offshore. Flaring<br />

occur both offshore and onshore in gas treatment and storage plants and<br />

in refineries. Venting occur in gas storage plants. Venting of gas is assumed<br />

to be negligible in extraction and in refineries as controlled venting<br />

enters the gas flare system.<br />

Activity data, emission factors and emissions are stored in the Danish emission<br />

database on SNAP sector categories (Selected Nomenclature <strong>for</strong> Air Pollution).<br />

In Table 3.40 the corresponding SNAP codes and NFR sectors relevant<br />

to fugitive emissions are shown. Further, the table holds the SNAP<br />

names <strong>for</strong> the SNAP codes and the overall activity (e.g. oil and natural gas).

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