John Wenger's Avatar

John Wenger

@johnwenger9

Professor of Chemistry University College Cork Atmospheric scientist, clean air advocate

378
Followers
234
Following
86
Posts
11.11.2024
Joined
Posts Following

Latest posts by John Wenger @johnwenger9

Post image

Good to see this information board in the entrance to UCC Library raising awareness of indoor environmental quality.

Fresh air and comfortable temperatures improve study performance, while controlled humidity looks after all those books & archives.

@ucc.ie @ucclibrary.bsky.social

04.03.2026 06:34 ๐Ÿ‘ 6 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Superglue packaging with plastic replaced by card

Superglue packaging with plastic replaced by card

Great to see Loctite replace the plastic packaging with card. More of this please!

28.02.2026 12:49 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Post image

Just when you think you've seen the most brain-dead hysterical media reporting on nonsensical anti-renewables "fears" whipped up on deranged Facebook groups, along comes the epic nonsense below:

24.02.2026 11:29 ๐Ÿ‘ 482 ๐Ÿ” 144 ๐Ÿ’ฌ 28 ๐Ÿ“Œ 47
Preview
Tess Finch Lees: From the Winter Olympics to Nasa, wearing masks is back โ€“ except when it comes to our hospitals Masks are back: at the Olympics, at Nasa and with A-listers.

Tess Finch Lees: From the Winter Olympics to Nasa, wearing masks is back โ€“ except when it comes to our hospitals.

Respirator masks (FFP2/N95) should be mandatory in hospitals and other healthcare settings when covid and flu are in the air.

www.independent.ie/opinion/comm...

22.02.2026 08:16 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Tess Finch Lees: From the Winter Olympics to Nasa, wearing masks is back โ€“ except when it comes to our hospitals Masks are back: at the Olympics, at Nasa and with A-listers.

1. Outstanding article from Tess Finch Lees:

'Meanwhile, when asked why sheโ€™s masking during chemo, Meg now says, โ€œIโ€™m training for the Olympicsโ€ '.

Please click on the paywalled link first, archived link in next post. Also consider sharing.

m.independent.ie/opinion/comm...

21.02.2026 10:01 ๐Ÿ‘ 204 ๐Ÿ” 80 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 7
Preview
Clean Air, Strategy, Policy, Public Health, Indoor Air Quality, PM2.5, CO2, Ventilation, HEPA โ€” Clean Air Advocacy Ireland As most people spend 90% of their time indoors, we must consider and include our indoor environments as part of our environment when developing a National Clean Air Strategy.

Last day to submit to Ireland's Clean Air Strategy here: ziply.pk/o7hDzg

Our submission to the Public Consultation on Ireland's Clean Air Strategy is available here:
www.cleanairadvocacyireland.org/clean-air-bl...

#CleanAir #IndoorAirQuality #PublicHealth #Speirgorm

20.02.2026 13:04 ๐Ÿ‘ 3 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Just been asked to moderate panels at a big event with a high ticket price. But "sorry, they cannot offer a fee" to the moderators who make it possible. I didn't say no because of the money for me, but because of the exploitative business model (similar to academic publishing). This needs to stop.

18.02.2026 10:10 ๐Ÿ‘ 382 ๐Ÿ” 38 ๐Ÿ’ฌ 10 ๐Ÿ“Œ 5
Preview
Norovirus Can Spread Through The Air โ€” Clean Air Advocacy Ireland Here are some tips for avoiding it.

Did you know that Norovirus can be spread through the air? It occurs when infected people ๐Ÿคฎ

There is a surge in noroviral infections in Ireland right now, so we've published this blog with tips on how to avoid #airborne transmission of Norovirus.

www.cleanairadvocacyireland.org/clean-air-bl...

15.02.2026 17:57 ๐Ÿ‘ 9 ๐Ÿ” 10 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Good thread explaining a novel measurement based approach for assessing the risk of airborne transmission of infectious diseases.

08.02.2026 09:15 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Winter Olympics Faces New Climate Reality Unpredictable conditions are limiting where itโ€™s physically and financially possible to host the Winter Olympics.

Alpine areas are heating up faster than the rest of the planet: all the cities that staged the #WinterGames since 1950 have heated up in the years since by an average of 2.7C, according to scientists. Thatโ€™s well above 1.4C, the warming average for the entire planet www.bloomberg.com/graphics/202...

04.02.2026 14:40 ๐Ÿ‘ 16 ๐Ÿ” 6 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
I inhaled traffic fumes to find out where air pollution goes in my body BBC health correspondent James Gallagher gets his blood analysed to understand how air pollution is killing us.

Air pollution particles don't just enter your lungs, they attach themselves to red blood cells and move around the whole body.

We don't breathe them out, so pollution accumulates in the body causing organ damage, dementia and more.

Reduce emissions and clear the air.

www.bbc.com/news/article...

07.02.2026 18:44 ๐Ÿ‘ 7 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

New research paper on transmission of respiratory viruses in schools.

Results - extended periods spent in poorly ventilated classrooms are a stronger driver of within-school transmission than individual contact rates.

Solution - monitor air quality and ensure classrooms are well ventilated.

06.02.2026 06:28 ๐Ÿ‘ 19 ๐Ÿ” 19 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 2

What a wildly stupid idea.

Mandatory helmets and high viz is a proven remedy to reduce the number of people cycling. It effectively kills off things like Dublin Bikes.

That's why no other EU country does anything like this. Pure madness.

04.02.2026 22:19 ๐Ÿ‘ 169 ๐Ÿ” 76 ๐Ÿ’ฌ 12 ๐Ÿ“Œ 1
Preview
Air pollution joins Europeโ€™s list of cancer risks Air pollution has today (4th February) been formally recognised as a cancer risk in Europe for the first time, after being added to the European Code Against Cancer. The update appears in the fifth ed...

Air pollution joins Europeโ€™s list of cancer risks.

Limit your exposure by choosing public transport, walking or cycling instead of driving, opting for low-traffic routes when exercising outdoors, keeping homes free of smoke by avoiding the burning of coal or wood

airqualitynews.com/headlines/ai...

04.02.2026 22:57 ๐Ÿ‘ 3 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Illegal smoky coal and wet wood still being sold in Cork despite 2022 ban Council inspectors target wholesale fuel suppliers as councillors warn illegal smoky coal is still harming vulnerable communities

Smoky coal is still being used in Cork despite the nationwide ban being introduced in 2022!

It seems that local authorities need more resources from government for effective enforcement of the legislation.

www.irishexaminer.com/news/munster...

03.02.2026 11:40 ๐Ÿ‘ 2 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
School of Chemistry researchers play leading role in new โ‚ฌ6.5 Million all-island project for improving air quality | University College Cork Learn, Study and Research in UCC, Ireland's first 5 star university. Our tradition of independent thinking will prepare you for the world and the workplace in a vibrant, modern, green campus.

Delighted to be part of this big and ambitious new project to improve air quality and protect public health across Ireland and Northern Ireland.

PEACE-Air is the first ever all-island Partnership for Evidence and Action on Clean Air.

www.ucc.ie/en/chemistry...

24.01.2026 08:51 ๐Ÿ‘ 11 ๐Ÿ” 5 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
PRESS RELEASE - FOR IMMEDIATE RELEASE

ISSUED 30/11/2025

Urgent Action Needed to Quell Spread of Flu in Schools

Flu is spreading earlier than last year, with children heavily impacted.
Public health advice to schools should be updated to account for airborne transmission of flu.

Clean Air Advocacy Ireland (CAAI) has written to Dr Abigail Collins, the HSEโ€™s clinical lead on child public health, and to Hildegarde Naughton, the Minister for Education and Youth, to ask that public health advice to schools be urgently updated to reduce the spread of the current flu wave.

The appeal comes in the wake of a warning last week from Childrenโ€™s Health Ireland (CHI) that its emergency departments and urgent care centres had witnessed a surge in presentations of children with flu-like symptoms.

Full text available here: 
https://www.cleanairadvocacyireland.org/clean-air-blog/fh3sa8yzo73ra7sn4gitahml3pm9zc-plssg

PRESS RELEASE - FOR IMMEDIATE RELEASE ISSUED 30/11/2025 Urgent Action Needed to Quell Spread of Flu in Schools Flu is spreading earlier than last year, with children heavily impacted. Public health advice to schools should be updated to account for airborne transmission of flu. Clean Air Advocacy Ireland (CAAI) has written to Dr Abigail Collins, the HSEโ€™s clinical lead on child public health, and to Hildegarde Naughton, the Minister for Education and Youth, to ask that public health advice to schools be urgently updated to reduce the spread of the current flu wave. The appeal comes in the wake of a warning last week from Childrenโ€™s Health Ireland (CHI) that its emergency departments and urgent care centres had witnessed a surge in presentations of children with flu-like symptoms. Full text available here: https://www.cleanairadvocacyireland.org/clean-air-blog/fh3sa8yzo73ra7sn4gitahml3pm9zc-plssg

In addition to advising parents to keep symptomatic children at home, CAAI wants schools to be properly informed about how to reduce the spread of common airborne illnesses, including flu, RSV, and Covid-19. This advice includes:

Keeping classrooms well ventilated 

Using air filters in classrooms. 

Using CO2 monitors to measure indoor air quality. CO2 levels should be kept below 800ppm.

โ€œFlu has hit Ireland almost a month earlier than last year,โ€ says Kieran Ryan of CAAI,โ€ and we know that school-acquired infections can lead to flu spreading in the wider community, with children bringing an infection home to their siblings, parents, and older relatives.โ€

โ€œIt would be prudent to issue updated public health advice to schools immediately to try to reduce transmission of flu, or else we can expect a severe flu season that will have a major impact across schools, hospitals, and other parts of our society.โ€

In addition to advising parents to keep symptomatic children at home, CAAI wants schools to be properly informed about how to reduce the spread of common airborne illnesses, including flu, RSV, and Covid-19. This advice includes: Keeping classrooms well ventilated Using air filters in classrooms. Using CO2 monitors to measure indoor air quality. CO2 levels should be kept below 800ppm. โ€œFlu has hit Ireland almost a month earlier than last year,โ€ says Kieran Ryan of CAAI,โ€ and we know that school-acquired infections can lead to flu spreading in the wider community, with children bringing an infection home to their siblings, parents, and older relatives.โ€ โ€œIt would be prudent to issue updated public health advice to schools immediately to try to reduce transmission of flu, or else we can expect a severe flu season that will have a major impact across schools, hospitals, and other parts of our society.โ€

Flu is spreading earlier than last year, with children heavily impacted.
We call on the Minister for Education and the HSE to update public health advice to schools to account for airborne transmission of flu.

Press release is available here: www.cleanairadvocacyireland.org/clean-air-bl...

30.11.2025 21:36 ๐Ÿ‘ 16 ๐Ÿ” 8 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 4
The relative contribution of close-proximity contacts, shared classroom exposure and indoor air quality to respiratory virus transmission in schools - Nature Communications The relative importance of close-proximity interactions, shared space and air quality to the transmission of respiratory viruses is not well understood. Here, the authors investigate this question by ...

New research provides further evidence for the importance of clean air in classrooms.

"Prolonged exposure in shared, poorly ventilated spaces, which potentially includes several infectious sources, drives respiratory virus transmission more than close contact"

www.nature.com/articles/s41...

29.11.2025 07:04 ๐Ÿ‘ 4 ๐Ÿ” 3 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1

Cork needs more green spaces. Sign the petition to turn a derelict site into a park.

24.11.2025 16:12 ๐Ÿ‘ 13 ๐Ÿ” 7 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

This all sounds too familiar...government agency stating bird flu is not airborne despite evidence to the contrary.

18.11.2025 22:59 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

What will you do with them?

16.11.2025 23:50 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

This is just miserable...

15.11.2025 20:01 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Pale text on blue background: Share your air with us using #FridayAirday Let's Clean Our Air

Pale text on blue background: Share your air with us using #FridayAirday Let's Clean Our Air

Post image Post image Post image

We thought it would be fun to run a campaign to share your air quality readings using #FridayAirday on Fridays! Help us create awareness of the importance of indoor/outdoor air quality by capturing an image of your CO2 monitor in whatever contexts you want to share. Some examples below. #CleanTheAir

13.11.2025 21:28 ๐Ÿ‘ 13 ๐Ÿ” 5 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 4
Preview
Clean Air Week 2025 The aim of the Marine Spatial Planning Photo Competition is to find out how you would like to see our ocean and marine environments being used in the future.

What a great range of activities planned by @greenschoolsire.bsky.social for Clean Air Week!
Specially designed challenges & activities for primary & secondary schools.
I am pleased to contribute in a small way to the programme content.
@antaisce.bsky.social

greenschoolsireland.org/clean-air-we...

11.11.2025 18:42 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Blue text on pale blue background: Did you know? COVID-19 is still not recognised as an occupational illness in Ireland 

Let's clean our air

Blue text on pale blue background: Did you know? COVID-19 is still not recognised as an occupational illness in Ireland Let's clean our air

COVID-19 remains unrecognised as an occupational illness in Ireland. The argument is that it's too difficult to prove an infection source, as COVID-19 is so pervasive in our communities. This is an admission of failure and not a justifiable excuse. #cleantheair #cleanairforall

03.11.2025 10:33 ๐Ÿ‘ 14 ๐Ÿ” 5 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 1
Post image

I've finally got around to curating a selection of films about the #climate crisis ๐ŸŽฅ

There's lot of mediocre climate films out there, but for me these stand out head & shoulders above the rest ๐ŸŽž๏ธ

They make excellent resources for classrooms, lecture halls, or community cinema's ๐ŸŽฌ

Thread:๐ŸงตPlz RT

01.11.2025 10:16 ๐Ÿ‘ 591 ๐Ÿ” 401 ๐Ÿ’ฌ 21 ๐Ÿ“Œ 39

Great thread on societal questioning around science.

Key message for me is that the burden of proof lies with the challengers and not with those in mainstream science where things like man-made climate change are proven and widely accepted by the experts.

28.10.2025 23:40 ๐Ÿ‘ 10 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Townair - University of Galway

The #TownAir project is a collaboration between research groups in @ucc.ie and @uniofgalway.bsky.social

To find out more, visit the project webpage: www.universityofgalway.ie/townair/

@uccresearch.bsky.social

23.10.2025 10:50 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Preview
Air quality monitors installed in Enniscorthy after years of alarming air pollution A network of air quality monitors have been installed around Enniscorthy town as part of a UCC and University of Galway research project on emissions called TownAir.

Nice to see our TownAir project covered in the @independent.ie

We installed a low cost sensor network in Enniscorthy, a town in Ireland with a history of wintertime air pollution.

The network shows how pollution from solid fuel burning varies across the town

www.independent.ie/regionals/we...

23.10.2025 10:44 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
Wood burners linked to 2,500 deaths a year in the UK, analysis finds Use of wood-burning stoves and fires in homes is mostly unnecessary and their toxic pollution costs the NHS millions

A home fire might look nice and feel cozy but wood burning costs lives and the economy.

www.theguardian.com/environment/...

23.10.2025 06:49 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0