From:
Perry Davy
To:
Sarah Fraser
Subject:
RE: OIA request
Date:
Wednesday, 11 March 2026 10:37:29
Attachments:
image001.png
Hi Sarah
This is the journal paper:
ANCELET, T., DAVY, P. K., TROMPETTER, W. J., MARKWITZ, A. & WEATHERBURN, D. C. 2014. Sources and transport of particulate matter on
an hourly time-scale during the winter in a New Zealand urban valley. Urban Climate. http://dx.doi.org/10.1016/j.uclim.2014.06.003
Here is the list of reports:
DAVY, P., K. & TROMPETTER, W. J. 2019. Composition, sources and long-term trends for Auckland air particulate matter: Summary Report.
GNS Science Consultancy Report 2019/151. Institute of Geological and Nuclear Sciences. Prepared for Auckland Council
DAVY, P. K., TROMPETTER, W. J. & MARKWITZ, A. 2008. Source apportionment of airborne particles at Seaview, Lower Hutt. GNS Science
consultancy report 2008/160. Institute of Geological and Nuclear Sciences. Prepared for Greater Wellington Regional Council
Redacted 9(2)(i) and 9(2)(ba)(i) OIA
DAVY, P., K. & TROMPETTER, W. J. 2019. Analysis of air particulate matter composition from Napier Port. GNS Science Consultancy Report
2019/97 LR. Institute of Geological and Nuclear Sciences. Prepared for Hawkes Bay Regional Council
Redacted 9(2)(i) and 9(2)(ba)(i) OIA
Redacted 9(2)(i) and 9(2)(ba)(i) OIA
From: Sarah Fraser <[email address]>
Sent: Wednesday, 11 March 2026 10:06
To: Perry Davy <[email address]>; Sara Mikaloff-Fletcher <[email address]>
Subject: RE: OIA request
Thank you – I’ll check with Legal to see whether or not we provide the material. In the meantime, can you send me the science publication
links?
From: Perry Davy <[email address]>
Sent: Wednesday, 11 March 2026 9:48 am
To: Sarah Fraser <[email address]>; Sara Mikaloff-Fletcher <[email address]>
Subject: RE: OIA request
Hi Sarah
The information is contained in client reports or science publications so relatively simple to send you those - other than any confidentiality
issues with releasing client reports to third parties. There is no assessment of any weather impacts though.
Kind regards
Perry
From: Sarah Fraser <[email address]>
Sent: Wednesday, 11 March 2026 09:31
To: Perry Davy <[email address]>; Sara Mikaloff-Fletcher <[email address]>
Cc: Jocelyn Turnbull <[email address]>; Perry Davy <[email address]>; Sally Gray <[email address]>
Subject: RE: OIA request
Hi Perry
Thanks for this – how involved would it be to provide that analysis? This link Request for information regarding the basis of “no evidence”
claims about ship emissions and weather impacts - a Official Information Act request to Ministry for the Environment - FYI provides more
background on the topic the requestor is pursuing.
Cheers
Sarah
From: Perry Davy <[email address]>
Sent: Wednesday, 11 March 2026 9:07 am
To: Sara Mikaloff-Fletcher <[email address]>; Sarah Fraser <[email address]>
Cc: Jocelyn Turnbull <[email address]>; Perry Davy <[email address]>; Sally Gray <[email address]>
Subject: RE: OIA request
Hi Sarah
Our PM monitoring and compositional analysis has picked up contributions from shipping emissions at those monitoring sites near ports in
NZ. This includes Auckland, Redacted 9(2)(i) a Wellington, Nelson,
and
Redacted 9(2)(i)
Redacted 9(2)( – whether that is relevant to Q1 depends on the
requester’s intent and the timeframe (2022 onwards?).
These datasets were generated as a result of client contracts with associated analysis and reporting (apart from the Nelson data which was a
FRST funded program 2009-2012).
Kind regards
Perry
From: Sara Mikaloff-Fletcher <[email address]>
Sent: Tuesday, 10 March 2026 21:30
To: Sarah Fraser <[email address]>
Cc: Jocelyn Turnbull <[email address]>; Perry Davy <[email address]>; Sally Gray <[email address]>
Subject: RE: OIA request
Kia ora Sarah,
I think the answer is no, but I am sending this on to Perry Davy and Jocelyn Turnbull from the GNS BU as there may be some black carbon
data from the GNS BU that wasn’t considered previously as I believe that request pre-dated the merger. In addition, there may be some new
data from CarbonWatch-Urban, although I can’t think of anything directly shipping related. I’m also including Sally, as she has the best
overview of any work from NIWA’s old air quality team and is most likely to be aware of anything I’ve missed out on.
Jocelyn, Perry, Sally, do you know of anything?
Sara
From: Sarah Fraser <[email address]>
Sent: Monday, 9 March 2026 3:59 pm
To: Sara Mikaloff-Fletcher <[email address]>
Subject: OIA request
Kia ora Sara
We’ve had the following OIA request which Melissa was handling, which was a refinement of an earlier request. I gather from Melissa’s
emails that we have nothing to respond to regards questions 1 & 2. Do you know if we would have anything with regards to question 3?
Given the answer was no to 1 & 2, I’d assume it would be the same for 3, but would appreciate your confirmation.
Thank you very much
Sarah
