Showing posts with label water quality. Show all posts
Showing posts with label water quality. Show all posts

Monday, 29 September 2014

Flu study offers unique insight into our drug habits during a pandemic

New research led by CEH’s Dr Andrew Singer provides the first evidence of how the use of antibiotic and antiviral drugs became elevated during the 2009-2010 influenza pandemic in the UK. The study, published in PLOS One, offers a unique look at public health practice, human behaviour and drug adherence in the country.

Andrew’s study, carried out at 21 locations within the river Thames catchment, was the first to provide actual measurements of antibiotics, antivirals and decongestants in sewage effluent and receiving rivers during an influenza pandemic, an event only likely to happen every 30 years or so. The aim was to quantify the pharmaceutical response to the pandemic and compare this to drug use during the late pandemic and the inter-pandemic periods. The findings helped to quantify the risk to wastewater treatment plants, as they will be sensitive to the amount of antimicrobials in sewage and could potentially fail to meet water quality standards during high drug use events such as an influenza pandemic.

Dr Andrew Singer at work in one of CEH's laboratories.

The study also provides evidence that environmental concentrations of the antiviral Tamiflu would be sufficiently high to select for antiviral-resistance in influenza viruses within wildfowl inhabiting the river Thames. Future research will need to focus on the minimum concentration of antibiotics needed to ‘knock out’ a wastewater treatment plant, and whether this concentration could be achieved during a more severe pandemic. It remains an open question as to the extent to which exposure to high concentrations of Tamiflu have actually selected for antiviral resistance in wildfowl—as this has been shown to occur in laboratory studies. Lastly, it also remains unclear as to the lasting impact of an increase in antibiotic use during a severe influenza pandemic on the environmental reservoir of antibiotic resistance and its relevance to human health. Will we need to limit antibiotic use during a pandemic in order to spare our wastewater treatment plants as well as the long term efficacy of antibiotics?

Read more about the background to the study in an article on Andrew’s blog and read the freely available study in PLOS One.


Additional information


Staff page of Dr Andrew Singer, CEH

Andrew led a previous study estimating how much prescribed Tamiflu went unused during the 2009-2010 pandemic. More details in a CEH news story.





Thursday, 21 August 2014

CEH scientists collaborating with global freshwater citizen science programme

CEH scientists working on a project investigating water pollution in urban areas have teamed up with Earthwatch to train citizen scientists in carrying out water quality monitoring. The collaboration has come about via Earthwatch’s Freshwater Watch programme, which aims to study fresh water quality around the globe by engaging employees from participating organisations as citizen scientists.

The POLLCURB project, led by CEH, is looking at how water pollution relates to change in urban areas, in particular change brought about by population growth, and what it may mean for water quality and quantity in the future.

POLLCURB is collaborating with the Earthwatch programme by training citizen scientists, in this case employees from Shell, to monitor water quality in the river Thames and two of its tributaries, the Mole and Ember, using a handheld multiparameter probe.

CEH's Mike Hutchins (centre) teaching participants
how to use the probe. Photo: Richard Sylvester / Earthwatch.

Dr Mike Hutchins of the Centre for Ecology & Hydrology is lead investigator on POLLCURB. At a recent citizen science training day at Wimbledon Common, Mike gave an overview of the project before teaching the budding citizen scientists from Shell how to use the monitoring probe, taking them into the field to gain first-hand practice.

Probe dunking. Photo: Richard Sylvester / Earthwatch.


The participants will visit the Thames sites several times over the next six months to collect data on temperature, turbidity, organic matter, algae and oxygen levels, producing a monthly dataset for each location. As well as collecting data for POLLCURB, they are also carrying out Freshwater Watch’s global parameters at each of the sites, which include collection data on nutrient levels.

Looking at the data collected. Photo: Richard Sylvester / Earthwatch.

Mike told us a little more about the value of the collaboration. He explained, "As POLLCURB is investigating how urban growth influences local water bodies I am keen to get people living in those very towns and cities involved and, in particular, for them to have the opportunity to use some of the equipment that professional scientists are currently using on a day-to-day basis.

"The data the citizen scientists are collecting will benefit me, in terms of improving the models I am using to predict river water quality, and also regulators, who will gain further knowledge of some specific rivers of interest to them."

Looking at results. Photo: Richard Sylvester / Earthwatch

Mike added, "The project with Earthwatch / Shell is flexible and I hope will gain some of its own momentum. There is potential to expand the number of sites or increase the frequency of visits, and also I am particularly enthusiastic about the scope for participants to monitor other local water bodies in which they may have a particular personal interest."

Earthwatch and CEH collaborators at one of the monitoring sites on the
Thames near Hampton Court. Photo: Mike Hutchins / CEH.


For more detailed information on the POLLCURB project, visit the project website.

Additional information


FreshWater Water has already recruited more than 1700 citizen scientists in over two dozen cities around the world. Data collected are uploaded to freshwaterwatch.thewaterhub.org

Staff page and research interests of Dr Mike Hutchins, CEH

More about the citizen science training day from Earthwatch

Posted by Paulette Burns, Media Coordinator

Tuesday, 17 June 2014

Making a splash at Loch Leven 50 celebrations

One of Scotland's most popular national nature reserves (NNRs), Loch Leven, is celebrating its 50th anniversary this year. Loch Leven is Scotland's largest lowland loch and one of the most important sites for waterfowl in Britain.

The Loch is one of CEH’s most important long-term monitoring sites and is part of the UK’s Environmental Change Network (ECN), which is co-ordinated by CEH. Our scientists have collected chemical and biological water quality data from the Loch since 1968. These data have provided the scientific basis for lake and catchment management strategies aimed at solving Loch Leven’s eutrophication problems. These problems are most visible as cyanobacterial blooms, which affect amenity value and have a marked impact on the local economy.

On Sunday 8th June CEH staff took part in the annual “Discovery Day” at the Loch. CEH’s Dr Linda May sent this report from the event:

“This year's Discovery Day at Loch Leven was a big hit with the local kids, who enjoyed scooping freshwater life at the CEH stall and looking at them under the microscope. CEH staff (Linda May, Alanna Moore, Iain Gunn and Laurence Carvalho), who were on hand to help the freshwater ecologists of the future, were kept extremely busy by almost 700 visitors.


Although this event celebrated the 50th anniversary of Loch Leven's designation as a National Nature Reserve, our younger visitors were more interested in the wee beasties that we had caught in the loch. 'Trending' on the day was (1) examining the 'bitey bits' of caddis fly larvae, (2) working out what eats what, (3) waiting for the stickleback to attack the tadpoles (no tadpoles were harmed!!) and (4) trying to catch waterboatmen with a pipette.


Discovery Day is an annual event organised by Scottish Natural Heritage to entertain and educate the local community about the biodiversity living in and around Loch Leven.
An addition to the CEH contribution this year was a survey of visitors’ perceptions of the value of Loch Leven. Data collected will feed into various projects that are attempting to quantify the ecosystem services provided by the loch.”

Additional information


CEH's long-term water quality monitoring at Loch Leven

Scottish Natural Heritage Press Release: Celebrate Loch Leven's 50th

More photos on Flickr

Tuesday, 22 April 2014

Water Resources science area - embracing ecology and hydrology

CEH's new Science Strategy identifies three interdependent, major societal and environmental challenges: Securing the Value of Nature, Building Resilience to Environmental Hazards, and Managing Environmental Change. We're delivering our strategy by Science Areas and underpinning activities, and over recent weeks we have profiled these on our blog.

In this post, we take a closer look at our Water Resources science area, which is led by Dr David Boorman. In this area our research embraces ecology and hydrology, water quality and water quantity.

CEH research activity in Water Resources includes long-term observation of
surface waters.
Our work aims to give insight into relationships between the natural water resource and its dependent ecosystems.


Research activity includes the development and deployment of novel monitoring techniques to quantify extremes, dynamics and fluxes of water, associated chemicals, biota and sediment, as well as assessing threats of pollution to the aquatic environment and human health.


We maintain nationally important datasets and make these available for further research.


Water resources serve the competing and often conflicting requirements of agriculture, industry, households, power generation, navigation, flood protection and recreation. They must be allocated and used in a sustainable and equitable way whilst maintaining biodiversity and ecosystem services.

Future research objectives for CEH include understanding and representing in models the pressures, processes and fluxes that control the availability, distribution and quality of water resources nationally and globally.  We also provide the evidence required to facilitate the management of water resources and provide the evidence base for policy development.


Current work includes establishing delivery of the first operational Hydrological Outlook service for the UK; integrating web-based delivery of UK flood data into the National River Flow Archive; launching a real-time service describing soil moisture across the UK, and establishing a national inventory of lake assets and a global lake observatory based on Earth observation.


For more details of these and other research objectives in our Water Resources science area, please see our Science Area Summary [PDF].

Additional information


CEH Science Strategy 2014-2019

Staff page of Dr David Boorman, Water Resources Science Area Lead

Posted by Paulette Burns

Friday, 15 November 2013

Integration and reflection - paperblog 8

This week we concentrate on recent papers with CEH scientists as the first author.

PhD student Philip Martin recently published a major paper summarising his research over the last few years. You can read more about "Carbon pools recover more quickly than plant biodiversity in tropical secondary forests" (published in Proceedings of the Royal Society B) on the CEH website and on Philip's blog.

Another PhD student, Christopher Malley, has a new paper out in Atmospheric Research which takes a detailed look at how well two of the UK's atmospheric monitoring 'supersites', including the site run by CEH at Auchencorth Moss in Scotland, represent the UK's background ozone conditions.

CEH is a Centre that carries out both ecological and hydrological science, sometimes together (the clue is in the name!). Our scientists produce many papers that seek to bring together varied data on water quantity, freshwater ecology, and water quality. In recent weeks, CEH scientists have published on estimating concentrations in rivers of different chemicals originating from sewage treatment plants (Keller et al., open access in Environmental Toxicology and Chemistry), and a new approach for predicting phosphorus concentrations in rivers (Greene et al., Journal of Hydrology).

Sometimes it is necessary to take a step back from day to day research to ponder some fundamental questions on how scientific knowledge can be used in wider society. Two examples have recently appeared. Alan Gray has a new paper in Transgenic Research examining whether applied ecology has failed the transgenic crops debate. Stefan Reis and colleagues from CEH, Universities and Health Institutes across the UK have put together a new analysis on how to integrate health and environmental impact analysis to address some of the new public health challenges.

Nitrogen science plays a big role in CEH activities. Laurence Jones and CEH colleagues have produced a new review of the evidence for nitrogen impacts on ecosystem services. Read it in the journal Ecosystem Services, where the paper is open access (full text freely available). Meanwhile, Mark Sutton is lead author on another new open access paper in Environmental Development looking at "Green Economy thinking" and relevance to control of nitrous oxide emissions.

Finally, Robert Mills, who completed a PhD at CEH's site in Bangor, North Wales, has just published a new paper on organic carbon turnover rates in natural and semi-natural topsoils. Working with Professor Ed Tipping, the study concludes with the interesting result that turnover is faster under trees than non-trees. Read more in the journal Biogeochemistry.

That's it. As ever, we welcome suggestions and comments on the material presented in the paperblog. Let us know what you think!

Barnaby Smith, Media Relations Manager

Additional information


If you'd like a fuller picture of new papers from CEH, just follow the CEH Paper Alerts Twitter feed, which lists CEH peer-reviewed papers newly published online. Full details of Centre for Ecology & Hydrology science publications, including those published in peer-reviewed science journals, are eventually catalogued on the NERC Open Research Archive (NORA).

Those of you who follow the scientific literature will know some journal websites require registration and some are subscription-only. CEH, as part of NERC, is working with publishers and funders to make more of our output open access, and we have indicated above where this is the case.

We also publish lots of our other outputs including biological records atlases and project reports. More details can be found in the publications section of the CEH website.

Friday, 27 September 2013

British birds, pollinators and penguin poo - paperblog 7

In the latest edition of the CEH paperblog, we first highlight a recent PLoS ONE paper that involved researchers from Anglia Ruskin University and Dr Shelley Hinsley of CEH in a ten-year study of British birds, and how weather interacts with habitat to determine breeding success. The Cambridgeshire-focused study discovered that birds breeding in urban areas are better able to cope during unusually cold and wet weather, because they are less reliant on a single food source for feeding their chicks. The study compared 2012 - with its notable weather, including a cold and wet spring and lower than average temperatures - to the previous nine years.

Over the whole ten years of the study, birds living in the traditional woodland habitat had fared significantly better and produced larger and healthier broods than their city cousins. However, if extreme weather events become more commonplace due to the effects of climate change, then those birds living in urban environments may ultimately have the advantage. The PLoS ONE paper is open access.

Staying with PLoS ONE, and open access, a study led by Professor Hui Wang of CEH has used new technology to investigate viruses such as varroa destructor virus in honeybees and bumblebees. The results, from a small field trial, show how the use of Next Generation Sequencing (NGS) technology can help understand virus infections in key pollinating insects, with novel observations even from a small sample size. Such technology has potentially interesting applications in ecological and environmental science.

A new paper in the Journal of Applied Ecology also looks at pollinators and other invertebrates that provide important ecosystem services crucial to crop production. A team of researchers led by CEH mapped the distribution of species richness and functional diversity for ground beetles which are important in the delivery of natural pest control and for bees, important for pollination. Understanding national patterns can help to promote more effective crop management and contribute to longer-term food security.

Next, penguins are under the spotlight in a new paper in Atmospheric Environment. The emissions from remote seabird colonies often represent the main source of atmospheric nitrogen into surrounding ecosystems, and can provide useful case studies for scientists investigating nitrogen cycling and emission processes. However before this study no field-based estimates of ammonia emissions from penguin colonies had been published. Data was collected from seven locations around an Adelie penguin colony in the Antarctic and three different atmospheric dispersion models were used to derive the first field-based emission estimates of a penguin colony.  The researchers, including Sim Tang and Mark Sutton of CEH, estimate that 2% of the nitrogen excreted by the penguins is emitted as ammonia.

Finally, a featured article in the Journal of Environmental Quality led by Prof Andrew Sharpley (University of Arkansas) and involving Helen Jarvie, Bryan Spears and Linda May of CEH, used long-term monitoring data from a range of case studies (including CEH's Loch Leven and River Lambourn sites) to demonstrate the timelines and processes associated with recovery of water quality following phosphorus reduction measures. The team reported recovery times ranging from years to centuries across terrestrial and aquatic ecosystems. Read more in the open access paper and more background in a CEH news story.

Paulette Burns, Media Coordinator

Additional information


If you'd like a fuller picture of new papers from CEH, just follow the CEH Paper Alerts Twitter feed, which lists CEH peer-reviewed papers newly published online. Full details of Centre for Ecology & Hydrology science publications, including those published in peer-reviewed science journals, are eventually catalogued on the NERC Open Research Archive (NORA).

Those of you who follow the scientific literature will know some journal websites require registration and some are subscription-only. CEH, as part of NERC, is working with publishers and funders to make more of our output open access, and we have indicated above where this is the case.

We also publish lots of our other outputs including biological records atlases and project reports. More details can be found in the publications section of the CEH website.

Friday, 13 September 2013

Ragweed models and Bird Island measurements - CEH paperblog 6

In our latest paperblog, we first highlight two new papers resulting from a European Commission-funded project to assess and control the spread and effects of Common ragweed in Europe. Accurate models are needed to forecast the progress and impact of alien invasive species. For Common ragweed Ambrosia artemisiifolia such forecasts are extremely important as the species is a serious crop weed and its airborne pollen is a major cause of allergy and asthma in humans.

Newly published in Global Change Biology, Dan Chapman leads the paper, "Phenology predicts the native and invasive range limits of common ragweed", collaborating with CEH colleague Prof James Bullock and researchers from the UK, Austria and South Africa. Their study shows that phenology can be a key determinant of species' range margins, and thus integrating phenology into species distribution models can offer great potential for the mechanistic modelling of range dynamics.

Dan and James are co-authors of a second paper entitled "An operational model for forecasting ragweed pollen release and dispersion in Europe", published in Agricultural and Forest Meteorology and led by the Finnish Meteorological Institute. This study produces the first European-scale simulation of ragweed pollen concentrations. The modelling illustrates the potential for a relatively localized invasive species to produce impacts on human health at a continental scale.

The remote Bird Island in the south Atlantic is home to large seabird and seal colonies, including Macaroni and Gentoo penguins, and Antarctic fur seals. Our NERC colleagues British Antarctic Survey have a research station there. A new open access paper in Atmospheric Chemistry and Physics involving the Max Planck Institute for Chemistry, CEH, BAS and Kings College looks at how Bird Island's fauna are influencing the composition and characteristics of remote marine aerosol measured on the island. Many aspects of marine aerosol systems are not yet fully understood, but a detailed understanding is essential to quantify more fully the role of marine aerosol in the functioning of the Earth system.

The study, which saw the first stationary deployment of an aerosol mass spectrometer to a field site in the sub-Antarctic, generally found the aerosol to be less acidic than in other marine environments due to the high availability of ammonia from local fauna emissions.

Finally, we highlight a paper by Professor Colin Neal who recently retired from the Centre for Ecology & Hydrology but who remains a research fellow of the organisation. Colin's invited commentary in Hydrological Processes discusses "Catchment water quality: the inconvenient but necessary truth of fractal functioning", drawing on his long-term research, particularly at the Plynlimon catchments in Wales (data freely available from the CEH Information Gateway).

Paulette Burns, Media Coordinator

Additional information


If you'd like a fuller picture of new papers from CEH, just follow the CEH Paper Alerts Twitter feed, which lists CEH peer-reviewed papers newly published online. Full details of Centre for Ecology & Hydrology science publications, including those published in peer-reviewed science journals, are eventually catalogued on the NERC Open Research Archive (NORA).

Those of you who follow the scientific literature will know some journal websites require registration and some are subscription-only. CEH, as part of NERC, is working with publishers and funders to make more of our output open access, and we have indicated above where this is the case.

We also publish lots of our other outputs including biological records atlases and project reports. More details can be found in the publications section of the CEH website.

Thursday, 28 February 2013

CEH gives evidence to Commons water quality inquiry

Two of our CEH colleagues, Professor Andrew Johnson and Mr Neil Runnalls, gave evidence to Parliament this week, as the House of Commons Science & Technology Committee continued its new inquiry into water quality.

You can view their evidence below (from approximately 42m 25s):



Written evidence has already been submitted to the inquiry which was launched in December 2012 after the European Commission proposed a list of chemicals whose release to the environment should be controlled by wastewater treatment. In the oral evidence from science and industry, the committee heard that some of the chemicals are widely used in pharmaceutical products but their toxicity or otherwise to the environment is not yet fully understood. Furthermore the cost of their removal from wastewater has been estimated at  more than £27 billion over 20 years, although such long-term investment could prove beneficial in managing future pollutant threats. Concern was also raised at the UK's position, particularly in England, in relation to the amount of water available to dilute waste.

CEH has extensive experience in water quality monitoring and in modelling chronic and extreme threats to the environment. Professor Johnson's research at CEH focuses on threats to the aquatic environment, such as posed by chemicals including endocrine disrupting substances, as well as nanoparticles and viruses. Neil Runnalls is Programme Manager of the NERC Water Security Knowledge Exchange Programme and a CEH Business Development Manager. He attended the session on behalf of Research Councils UK.

Others giving evidence included Thames Water, the Association of the British Pharmaceutical Industry, the Blueprint for Water Coalition, the Marine Conservation Society and Plymouth University.

You can view the full Terms of Reference of the water quality inquiry here. The Science and Technology Committee (Commons), which is chaired by Andrew Miller MP, is due to hear more evidence next month.

Additional information

Staff page of Professor Andrew Johnson, CEH

Science and Technology Committee (Commons)


Posted by Paulette Burns