Nick Gray
@nfgray.bsky.social
Environmental scientist and wastewater engineer based at Trinity College Dublin, working as advisor and writer on all things to do with the environment. Author of 17 books and numerous research papers, author of 'Facing upto Global Warming'.
Delighted that my latest book 'Anaerobic Wastewater Treatment' has been published by World Scientific. It explores the exciting new range of anaerobic processes that are transforming WWTPs into resource recovery centres. doi.org/10.1142/q0507
#wastewater #anaerobic #biogas #circulareconomy
#wastewater #anaerobic #biogas #circulareconomy
November 26, 2025 at 11:45 AM
Delighted that my latest book 'Anaerobic Wastewater Treatment' has been published by World Scientific. It explores the exciting new range of anaerobic processes that are transforming WWTPs into resource recovery centres. doi.org/10.1142/q0507
#wastewater #anaerobic #biogas #circulareconomy
#wastewater #anaerobic #biogas #circulareconomy
I have really enjoyed reading this super new collection of poems from Victoria Melkovska. I really recommend it. I found it heartwarming and personal. A great new talent in Irish poetry. www.dedaluspress.com/authors/melk...
October 8, 2025 at 2:46 PM
I have really enjoyed reading this super new collection of poems from Victoria Melkovska. I really recommend it. I found it heartwarming and personal. A great new talent in Irish poetry. www.dedaluspress.com/authors/melk...
Humiliating senior military leaders in public is not a good idea.
Hegseth: "It all starts with physical fitness and appearance. If the secretary of war can do regular hard PT, so can every member of our joint force. Frankly, it's tiring to look out at combat formations and see fat troops. Likewise, it's completely unacceptable to see fat generals and admirals."
October 1, 2025 at 12:09 PM
Humiliating senior military leaders in public is not a good idea.
Happy Birthday John
September 10, 2025 at 12:51 PM
Happy Birthday John
Reposted by Nick Gray
EU fire data was updated this morning. Here's the total area burnt across the bloc this year so far. A record for this time of year. forest-fire.emergency.copernicus.eu/apps/effis.s...
August 19, 2025 at 7:26 AM
EU fire data was updated this morning. Here's the total area burnt across the bloc this year so far. A record for this time of year. forest-fire.emergency.copernicus.eu/apps/effis.s...
Great to see the exciting new electrochemical oxidation technologies for #PFAS destruction being rolled out to enable new drinking water limits to be met. New systems for PFAS destruction in #biosolids also being tested with hydrothermal alkaline and plasma-based systems on the table. #wastewater
August 19, 2025 at 8:42 AM
Great to see the exciting new electrochemical oxidation technologies for #PFAS destruction being rolled out to enable new drinking water limits to be met. New systems for PFAS destruction in #biosolids also being tested with hydrothermal alkaline and plasma-based systems on the table. #wastewater
Reposted by Nick Gray
#nicetry The artist who added a TV aerial in the new stamp from An Post depicting Daniel O’Connell in Dublin in 1844 apparently "included some sort of visual signal to link to the very modern global range and impact of O’Connell". www.rte.ie/news/ireland...
No AI on Daniel O'Connell stamp with TV aerial - An Post
An Post has said AI software was not used to generate the artwork on a stamp, which appears to show a television aerial on a building behind the nationalist leader Daniel O'Connell.
www.rte.ie
July 31, 2025 at 5:01 PM
#nicetry The artist who added a TV aerial in the new stamp from An Post depicting Daniel O’Connell in Dublin in 1844 apparently "included some sort of visual signal to link to the very modern global range and impact of O’Connell". www.rte.ie/news/ireland...
#GreenRoofs are increasingly common in urban areas but given the current combination of heat and water shortages are they always safe? They also require significant structural support. Good for biodiversity not as good as painting a roof white for #emissions and cooling buildings at night
July 23, 2025 at 7:45 AM
#GreenRoofs are increasingly common in urban areas but given the current combination of heat and water shortages are they always safe? They also require significant structural support. Good for biodiversity not as good as painting a roof white for #emissions and cooling buildings at night
A first for me. We have #swallows in all our outbuildings which is a bit of a problem as they are so messy...hence the cars are covered as they nest above them. This one has been perched on the car aerial for the past month and spends hours watching other swallows in action #birds #conservation
July 22, 2025 at 9:21 AM
A first for me. We have #swallows in all our outbuildings which is a bit of a problem as they are so messy...hence the cars are covered as they nest above them. This one has been perched on the car aerial for the past month and spends hours watching other swallows in action #birds #conservation
Watch the seismic waves from today's magnitude 7.3 Alaska earthquake ripple across seismic stations in North America.
More ➡️ loom.ly/kaJp5I0
More ➡️ loom.ly/kaJp5I0
July 17, 2025 at 3:09 PM
Daniel Coyle (IRL) riding Legacy
LONGINES FEI Jumping European Championship A Coruna 2025™
Daniel Coyle (IRL)
www.horseweb.de/2025/07/17/d...
Daniel Coyle (IRL)
www.horseweb.de/2025/07/17/d...
July 17, 2025 at 3:06 PM
Daniel Coyle (IRL) riding Legacy
Forgot that I had left this old Easter Cactus in the Polytunnel until it decided to remind me!
July 17, 2025 at 1:18 PM
Forgot that I had left this old Easter Cactus in the Polytunnel until it decided to remind me!
Each year I have to cut down the hogweed at the bottom of my percolation area where I have a small willow stand. It's a lovely plant but so invasive producing massive seed heads. Creating a range of habitats requires a lot of management #gardening #conservation #nature
July 17, 2025 at 10:23 AM
Each year I have to cut down the hogweed at the bottom of my percolation area where I have a small willow stand. It's a lovely plant but so invasive producing massive seed heads. Creating a range of habitats requires a lot of management #gardening #conservation #nature
Lovely Holly Blue #butterfly just outside my office.
July 16, 2025 at 3:20 PM
Lovely Holly Blue #butterfly just outside my office.
With the closure of banks, An Post has become the major lifeline for rural communities in #Ireland and must be fully supported by the government without further cutbacks in services. They are the most reliable and sustainable delivery service, providing vital community door to door support. #anpost
O’Donovan denies being behind what An Post described as ‘irresponsible leak’ about company’s finances
O’Donovan denies being behind what An Post described as ‘irresponsible leak’ about company’s finances
Minister for Communications denies he is source of media report as he insists company is ‘very viable’ and ‘profitable’
www.irishtimes.com
July 16, 2025 at 12:28 PM
Absolutely @minibubbly.bsky.social. Wastewater surveillance offers us unprecedented opportunities to improve community health and control disease outbreaks, focussing action where needed and allowing more precise predictive and risk management. #wastewater #measles #pathogens
#Alberta wastewater unlocked key information about COVID-19. Could it help with measles too?
Alberta's official measles case count is widely believed, by doctors and scientists, to be an underestimate.
www.cbc.ca/news/canada/...
Alberta's official measles case count is widely believed, by doctors and scientists, to be an underestimate.
www.cbc.ca/news/canada/...
Alberta wastewater unlocked key information about COVID-19. Could it help with measles too? | CBC News
As Alberta's measles outbreaks grow, researchers are watching the province's wastewater for the highly contagious virus and hoping to determine if the technology could eventually serve as an early det...
www.cbc.ca
July 16, 2025 at 12:23 PM
Absolutely @minibubbly.bsky.social. Wastewater surveillance offers us unprecedented opportunities to improve community health and control disease outbreaks, focussing action where needed and allowing more precise predictive and risk management. #wastewater #measles #pathogens
Reposted by Nick Gray
3 charts below:
1. Antibiotic-resistant "Superbug" cases in Ireland.
2. Covid wastewater levels in Ireland.
3. The charts overlaid & roughly synced for the same time period.
The pattern appears to show a connection between the peaks of Covid and peaks of superbug infections.
1/
1. Antibiotic-resistant "Superbug" cases in Ireland.
2. Covid wastewater levels in Ireland.
3. The charts overlaid & roughly synced for the same time period.
The pattern appears to show a connection between the peaks of Covid and peaks of superbug infections.
1/
June 17, 2025 at 6:33 PM
3 charts below:
1. Antibiotic-resistant "Superbug" cases in Ireland.
2. Covid wastewater levels in Ireland.
3. The charts overlaid & roughly synced for the same time period.
The pattern appears to show a connection between the peaks of Covid and peaks of superbug infections.
1/
1. Antibiotic-resistant "Superbug" cases in Ireland.
2. Covid wastewater levels in Ireland.
3. The charts overlaid & roughly synced for the same time period.
The pattern appears to show a connection between the peaks of Covid and peaks of superbug infections.
1/
Reposted by Nick Gray
Influenza A and B were reliably detected in wastewater, closely aligning with clinical trends📈. Novel methods to define flu seasons using wastewater data show promise for complementary community-level disease surveillance👩🔬. #PublicHealth #WastewaterSurveillance #Luxembourg
June 26, 2025 at 6:22 AM
Influenza A and B were reliably detected in wastewater, closely aligning with clinical trends📈. Novel methods to define flu seasons using wastewater data show promise for complementary community-level disease surveillance👩🔬. #PublicHealth #WastewaterSurveillance #Luxembourg
This is very disconcerting when at last we can check the health of the population with a real chance of minimising disease outbreaks which is good for health and the economy. Also the other data we can get, including level of drug use etc., is invaluable in prioritising help at community level
First confirmation I’ve seen for a potential reason of why we are seeing so many wastewater facilities not reporting data.
It is possible that like in San Diego, that the DOGE cuts are impacting funding and the ability of those facilities to do their important work.
It is possible that like in San Diego, that the DOGE cuts are impacting funding and the ability of those facilities to do their important work.
Very thankful to @sandiegouniontribune.com for covering the termination of our wastewater surveillance in San Diego.
If we don't want to lose sight of infectious diseases in our community, we need new funding - please reach out: searchcovid.info
www.sandiegouniontribune.com/2025/04/07/d...
If we don't want to lose sight of infectious diseases in our community, we need new funding - please reach out: searchcovid.info
www.sandiegouniontribune.com/2025/04/07/d...
June 29, 2025 at 5:25 PM
This is very disconcerting when at last we can check the health of the population with a real chance of minimising disease outbreaks which is good for health and the economy. Also the other data we can get, including level of drug use etc., is invaluable in prioritising help at community level
What an amazing WWTP. Thanks for sharing #wastewater #environment
Beckton Sewage Treatment Works - United Kingdom
🌍 : maps.app.goo.gl/ean7PUaVia8j...
4K link : i.imgur.com/JAzjzC1.jpeg
🌍 : maps.app.goo.gl/ean7PUaVia8j...
4K link : i.imgur.com/JAzjzC1.jpeg
June 29, 2025 at 5:18 PM
What an amazing WWTP. Thanks for sharing #wastewater #environment
Claire is quite right. It is far more sensible to prioritize the control methane emissions over CO2 emissions. #climateaction
Methane is a potent greenhouse gas. Over a 20-year period, it traps about 80 times more heat in the atmosphere than the same amount of carbon dioxide. It's also associated with air #pollution and #health risks. #ourkidsair #CutMethane #cdnpoli phys.org/news/2025-06...
Methane leaks from dormant oil and gas wells in Canada are seven times worse than thought, study suggests
Methane emissions from Canada's non-producing oil and gas wells appear to be seven times higher than government estimates, according to a new study led by researchers at McGill University. The finding...
phys.org
June 29, 2025 at 5:11 PM
Claire is quite right. It is far more sensible to prioritize the control methane emissions over CO2 emissions. #climateaction
One planet, one ocean, one atmosphere. We need to do the very best we can in the #wastewater industry to minimise what we discharge, especially when it comes to antibiotic resistant bacteria. So come on guys, let's make our effluents the very best we can.
‘Almost untreated #sewage’ can be discharged to the #ocean under proposed new #NZ #wastewater rules-part of #NZGovt’s ‘LocalWaterDoneWell’ #nzpol #health #pollution #NZGovtFail #NZAtlasGovt #AtlasNetwork
www.thepress.co.nz/nz-news/3607...
www.thepress.co.nz/nz-news/3607...
‘Almost untreated sewage’ can be discharged to the ocean under proposed rules
New national wastewater standards will allow almost 40 times more contamination by a dangerous bacteria than the standard attained by the Christchurch City Council.
www.thepress.co.nz
June 29, 2025 at 5:08 PM
One planet, one ocean, one atmosphere. We need to do the very best we can in the #wastewater industry to minimise what we discharge, especially when it comes to antibiotic resistant bacteria. So come on guys, let's make our effluents the very best we can.
Great example of low cost (passive) acid mine drainage treatment. The potential of #AMD is huge. Such small scale systems make a big difference and could be run by local communities with sensible funding. #wastewater #Circulareconomy
I recently revisited my home state, West Virginia, to report on one of the biggest environmental pollution problems you may not have heard of and the incredible work being put in to clean it up.
www.nytimes.com/interactive/...
www.nytimes.com/interactive/...
Streams Were Dying in West Virginia. Here’s How They’re Coming Back. (Gift Article)
Abandoned coal mines had left waterways acidic and rusty orange. Local residents are cleaning them up, and recovering rare earths in the process.
www.nytimes.com
June 27, 2025 at 3:01 PM
Great example of low cost (passive) acid mine drainage treatment. The potential of #AMD is huge. Such small scale systems make a big difference and could be run by local communities with sensible funding. #wastewater #Circulareconomy