Break-out group on Unidentified Sourcesof PFCs Emissions (BOG 1 – Closing Plenary)
IPCC Expert Meeting for Technical Assessment of IPCC Inventory Guidelines:
follow-up on specified issues from the 2015 expert meetings
25-26 April 2016, Wollongong, Australia
Rob Sturgiss, BOG1 RapporteurOutline
1.
2.
3.
4.
5.
6.

BOG1
PFCs gap
Aluminium Industry
Semiconductor Industry
Fluorochemical Production
Rare Earth Elements

BOG1
BOG1: Unidentified Sources of PFCs Emissions
Chair: Deborah Ottinger (USA)
Rapporteur: Rob Sturgiss (Australia)
Experts: Mr. Prosser (Australia), Ms. Hatanaka (Japan), Mr. Wong(NZ), Mr. Buendia (Peru), Mr. Limmeechokchai (Thailand), Mr.
Mr.Czerniak (UK), Mr. Raoux (USA/France) and Ms. Nunez (IAI)
TSU: Mr. Shermanau and Mr. MatsumotoMessage from the 2015 Geneva meeting

Kim, J., et al. (2014), “Quantifying aluminum and semiconductor industry perfluorocarbon emissions
from atmospheric measurements,” Geophys. Res. Lett., 41, 4787-4797, doi: 10.1002/2014GL059783

Aluminium Industry
Main conclusion:
Yes. Refinement is needed:• to develop new guidance on “non-anode effect” (“lowvoltage anode effect”) emissions; and• to update tier 1 and tier 2 defaults• to integrate new guidance and factors into the existing
methodology on anode-effect (“high-voltage anode effect”)
emissions• “Low-voltage anode effect” is a better term

Aluminium Industry
Question

Details (Where in 2006 GLs?)

What kind of refinements?
Update or addition of defaults?

High-voltage anode effect defaults

Elaboration of existing guidance?
Development of new guidance?
What are sources of data/information?

Low-voltage anode effect
Literature exist, more information isexpected to come from IAI

Semiconductor Industry
Main conclusion:
Yes. Refinement is needed:• to update default Tier 2 emission factors and elaborate existingguidance;• to update default Tier 1 emission factors (from Tier 2) and elaborate
existing guidance (more differentiated emission factors).
• to improve Tier 3 guidance (but there is a lack of relevant studies)• to elaborate guidance on generation of by-products from abatement
technologies (CF4 from NF3). More publications are expected to beavailable soon
To TFI TFB: to approach industry representatives (e.g., World SemiconductorCouncil)

Semiconductor Industry
Question

Details (Where in 2006 GLs?)

What kind of refinements?
Update or addition of defaults?

Tier 2 and Tier 1 default EFs

Elaboration of existing guidance?

Tier 3Development of new guidance?
What are sources of data/information?

US GHG RP

Fluorochemical Production (USA)Fluorochemical Production (USA)Fluorochemical Production (USA)Fluorochemical Production
Main conclusion:
Yes. Refinement is needed:• to update default Tier 1 emission factor (0.5%) and• to elaborate existing guidanceFluorochemical Production
Question

Details (Where in 2006 GLs?)

What kind of refinements?
Update or addition of defaults?

Tier 1 default EF

Elaboration of existing guidance?
Development of new guidance?
What are sources of data/information?

US GHG RP

Rare Earth Elements
Main conclusion:
Yes. Refinement is needed.
• This is a missing category and potentially significant• Development of new guidance on PFCs (taking intothat CO2 will be also emitted)• Literature sources: current literature limited, somelaboratory studies exist. It is expected that more
literature will be available within the next two yearsRare Earth Elements
Question

Details (Where in 2006 GLs?)

What kind of refinements?
Update or addition of defaults?
Elaboration of existing guidance?
Development of new guidance?
What are sources of data/information?

New guidanceThank you for your attention!