Last Thursday (8 May) the House of
Lords Economic Affairs Committee published a 100 page report on The Economic Impact on UK
Energy Policy of Shale Gas and Oil
The report is
strongly supportive of going ahead with fracking, as soon as possible. The
peers clearly regard the nascent fracking industry under threat from too much
environmental regulation, asserting “There is no reason why effective regulation
should not be transparent and speedy as well as rigorous. Delay is not only
costly and wasteful, it can also drive investors elsewhere.”
But one area where the peers are
sanguine about safety worries me: the release of radon gas into the methane gas
stream, when the gas is released by fracking.
I Gave evidence to the committee on this
worry, which the report records thus, at paragraph 181:
Dr David Lowry* told us that
shale gas "would have to be stored for at least a month before being
distributed to people's homes to allow for this radioactive decay of
radon."[377] He cited a US report that "some shale gas deposits
contain as much as 30 times the radiation that is found in normal
background."[378] Professor Stephenson did not regard the presence of
radon in gas as "a serious risk."[379] He told us that shales are "weakly radioactive …
much less than you get in somewhere like Aberdeen or Cornwall … This is quite a
well known phenomenon".[380] Public Health England's interim report took account of
the US study and "considered very unlikely that shale gas activities would
have any significant effect on radon levels in homes."[381] We find persuasive the view of Public Health England
that shale gas development would be very unlikely to have a significant effect
on radon levels in homes.
The matter was raised in
an oral evidence session with Professor Mike Stephenson, Director of Science and Technology, British Geological Survey, by Lord
Rowe-Beddoe, who asked: on environmental aspects, would you care to
make a comment on radon?
Professor Stephenson responded: “Shales are weakly
radioactive: something like 10 parts per million, which is much less than you
get in somewhere like Aberdeen or Cornwall. There are quite low levels of
radioactivity but they are radioactive. Small amounts of radioactivity can get
into flowback water and into gas. This is quite a well known phenomenon in the
oil industry because oil and certainly gas sometimes contain radon. Methane gas
contains radon. We do not regard it as a serious risk.”
So it is clear, Professor
Stephenson asserted the BGS view of radon in methane, but did not elaborate on
the scenario I painted in my written evidence, of radon-rich methane gas being
pumped into the nation’s kitchens, and
being released into these enclosed spaces after the methane is burned on a hob.
For their part, the peers
conclude that “we find
persuasive view of Public Health England that shale gas development would be
very unlikely to have a significant effect on radon levels in homes.”
“If the natural gas
delivery point were to be close to the extraction point with a short transit
time, radon present in the natural gas would have little time to decay….there is
therefore, the potential for radon gas to be present in natural gas extracted
from UK shale.”
(http://www.hpa.org.uk/webc/HPAwebFile/HPAweb_C/1317140158707).
Why would the peers come to their
perverse conclusions, not supported by the source they cite in support of their conclusions?
A Greenpeace UK energy blog last week
runs an interesting analysis on the interests of the peers on the Economic
Affairs Committee as follows:
“A Lords
committee that is calling for fracking to be made an urgent national
priority includes at least five members with interests in the global industry -
according to an Energydesk analysis of parliamentary
registers.
The committee
is made up of appointed Lords who do more than opine on government policy -
holding interests and positions across industry. We thought we’d take a look at
their positions and investments in energy.
The analysis
found that one member, Baroness Noakes, holds shares in at least three firms
with interests in shale gas, including British Gas owner Centrica.
Centrica
The firm has invested
in Cuadrilla’s exploratory operations in the North East and - as
such - could be a major beneficiary of government policy on fracking.
Noake’s other
investments include Shell, BG Group & BP who have all invested in shale gas
reserves in the US alongside a variety of mining and support services firms.
Fellow member,
former chancellor Lord Lawson, is now almost as well known for his climate
skeptic think tank, the Global Warming Policy Foundation, as his Thatcher era
tenure.
Lord Lawson
Finally the
committee includes one member with an obvious - and frequently declared -
interest in government policy on energy and climate. Lord May sits on the
government’s independent committee on climate change.”
Page 95 of the report publishes a list of the peers declared interests
in energy interests.
If the other conclusions of
this report are also deficient, in that they do not reflect the evidence, it
undermines the credibility of this report in its entirety. Such a situation
concerns me.
*Fracking’s
radiation risk
By
Dr David Lowry
3
October 2013
environmental
policy and research consultant
Along with many banners
saying ‘Could you kindly Frack Off’, ‘Police say no to fracking!’ ‘For a
frack-free future’, protestors at Balcombe, Sussex in August highlighted
their concerns over contamination of the local water table, fugitive emissions
of fracked methane gas that could exacerbate climate change dangers, and
worries over community disruption from many lorries that will have
to come to areas hosting fracking platforms with toxic liquids used to
flush out shale gas.
Mr Cameron’s coalition
partners also give cautious support for shale gas in a motion debated, and
endorsed, at the LibDem conference in September 2013 saying limited shale gas
extraction should be allowed, provided that "regulations controlling
pollution and protecting local environmental quality are strictly enforced,
planning decisions remain with local authorities and local communities are
fully consulted over extraction and fully compensated for all damage to the
local landscape".
But neither of the
Coalition partners, nor indeed the protestors in Balcombe, make any mention of
radioactive risks arising from fracking.
However, Mr Cameron’s own
Health minister, Anna Soubry, has told Labour MP Paul Flynn in a written answer
in May that Public Health England (formerly the Health Protection Agency)
is preparing a report identifying potential public health issues and concerns, including
radon (release/emissions, my emphasis)) that might be associated with
aspects of hydraulic fracturing, also referred to as fracking. The report is
due out for public consultation in the summer. Once released for public
consultation, the report will be freely available from the PHE website.”
(Hansard, 20 May: Column 570W)
PHE have told me they now
do not expect their report to see the light before the end of the year, which
is hugely disappointing considering its prospective importance to the public
debate.
PHE is concerned to
evaluate the concerns raised over potential risks of radon gas
being pumped into citizens’ homes as part of the shale gas stream. Unless the
gas is stored for several days to allow the radon's radioactivity to
naturally reduce, this is potentially very dangerous.
Radon is unquestionably the leading cause of lung cancer in non-smokers.
A report produced by the HPA in 2009, Radon and Public Health. (Report of an
independent Advisory Group on Ionising Radiation: Docs RCE 11, HPA 2009: www.hpa.org.uk) states:
“Radon is a naturally
occurring colourless and odourless radioactive gas that can seep out of the
ground and build up in houses, buildings, and indoor workplaces.
Epidemiological studies have established that exposure to radon is a cause of
lung cancer, with a linear dose-response relationship. Exposure to radon is now
recognised as the second largest cause of lung cancer in the UK after smoking
and analysis for the Health Protection Agency indicates that about 1100 UK
deaths from lung cancer each year are caused by exposure to radon (most caused
jointly by radon and smoking”
Initially radon released
from its virtually sealed underground locations will be in monatomic
suspension, but then it accretes onto dust particles, pipework, etc, and
some of it may remain suspended in the gas and come out in our cookers.
US
concerns
The current concern about how much radon is likely to be piped into people's
kitchens was spurred by a report last year by Dr Marvin Resnikoff, of
Radioactive Waste Management Associates (http://rwma.com/aboutus.htm). Dr Resnikoff estimated
radon levels from the Marcellus gas field - the nearest one being
exploited to New York - as up to 70 times the average. Dr Resnikoff’s
group, now based in Vermont, used be to be based in Brooklyn, New York, hence
its work on shale gas being piped to New York consumers. RWMAs suggest some
shale gas deposits contain as much as 30 times the radiation that is found in
normal background.(http://gdacc.org/2012/01/10/radon-in-natural-gas-from-marcellus-shale-by-marvin-resnikoff-radioactive-waste-management-associates/).
New scientific evidence on these concerns was published in the US journal Environmental
Science & Technology in September 2013 ( “Impacts of Shale Gas
Wastewater Disposal on Water Quality in Western Pennsylvania,” http://pubs.acs.org/doi/abs/10.1021/es402165b)
“The radon and natural
gas coming from the shale mix together and travel together as the gas is piped
to customers. This is a serious health hazard, as radon––being a gas––is
breathed into the lungs and lodges there to decay, doing damage to the lungʼs
tissue and eventually leading to lung cancer.”
Radon has a half-life of
3.8 days. Using the general rule of thumb of 10 half-lives to decay to 1/1000
of original concentration, that would be 38 days, or roughly one month,
depending on how radioactive it was to start.
Fracked gas would
thus need to be stored for at least a month before being
distributed to peoples’ homes, to allow for this radioactive decay of radon.
The Radon Council,
formed in 1990, is an independent non-profit making self-regulatory body for
the radon protection industry. Its formation was welcomed in the Interim
Report of the Parliamentary Select Committee on Indoor Pollution, which called
upon industry to provide a solution to the radon problem. The first objectives
were to identify the “cowboy” operators and dubious training courses then in
practice. Later there followed a first edition of a training manual
and an agreed Code of Practice for the industry.
It does not seem ministers
have read any of the Radon Council’s literature, so keen are they to
press ahead with fracking, as the Prime Minister and Chancellor’s speeches at
the Conservative Party Conference on 30 September and 2 October 2013 –backed up
by the Mayor of London - respectively demonstrated.
At the end of July
2013 the Communities Department published its Revision of building
regulation policy on radon. In the impact assessment it explains the
reason for the revised regulation is:
“Radon is a naturally
occurring radioactive gas linked to lung cancer. Alongside a health and
awareness programme and testing and remediation of existing buildings, current
Government policy includes targeted intervention through the Building
Regulations which requires radon protection in new buildings in areas of
elevated radon risk….We intend that the Building Regulations and supporting
statutory guidance is clear on current radon risks, and ensures buildings are
fitted with proportionate measures to prevent the ingress of radon and thus
reduce radon-related lung cancers. ”
It later adds “The
respective cumulative risks of lung cancer [from radon exposure] affecting people
by age 75 years in the UK at 100 and 200 Bq m-3 are 0.42% and 0.47% for
non-smokers and 17% and 19% for continuing smokers.”
It also states boldly: “The
chosen policy will maintain a targeted regulatory intervention (aligned to the
most up-to-date radon maps), to ensure that all buildings in higher-risk areas
incorporate appropriate radon measures.”
In light of this clear
precautionary approach, it is odd that all ministers seem to be uncritically
cheerleading for expanded fracking, despite its possible radon risk.
In January 2012 the
European Commission Energy Directorate released a 100-page report on
‘Unconventional Gas in Europe,’ primarily assessing the situation in France,
Germany, Poland and Sweden. It has a section on environmental liability, but no
mention of radon pollution.
Nuclear waste too
In addition, both RWMA in
the US and the internationally respected Norwegian
environmental consultancy, DNV (Det Norske Veritas have identified
radioactive waste contamination as one problem with fracking, arising from
contaminated rock cuttings and cores to which have the potential for
exposure to radioactivity on health. Risks relating to NORM (naturally
occurring radioactive materials) contaminated downhole and surface equipment
should also be considered, both suggest.
(Risk Management of Shale
Gas Developments and Operations January 2013 DNV-RP-U301; http://www.dnv.com)
The Commission report also
records that in Sweden, the handling of radioactive shales requires a permit in
accordance with the Radiation Protection Act and the Radiation Protection
Ordinance. This is the case when the uranium content exceeds 80 ppm (parts per
million), it points out. This permit is granted by the Swedish Radiation Safety
Authority. “Non-compliance with the permit can lead to it being revoked and, if
done intentionally, the responsible person can be fined or even imprisoned,” it
warns.
It adds that in Sweden, the
possible occurrence of radioactive materials (NORMS), heavy metals or saline
brines is taken into account by the permit for the environmentally hazardous
activity, required for the disposal of waste water.
Green MP Dr Caroline Lucas, who was arrested as a result of her protesting
against fracking in Balcombe during August 2013, initiated a wide-ranging
Parliamentary debate (www.publications.parliament.uk /pa/cm201314/cmhansrd
/cm130718/ hallindx/130718-x.htm)
on
fracking on 18 July 2013 in Westminster Hall, drew attention to the radon risk
and the outstanding PHE report. She asked the minister, Michael Fallon,
pointedly: “Will the Minister explain the delay in publishing this research
report when the public debate over fracking is moving ahead apace?”Mr Fallon replied to
several of Caroline Lucas’ questions on environmental hazards of fracking, but
gave no response to her queries on radon risks. I wonder why?