James Allan
@jamesallanatmos.bsky.social
Long haired atmospheric scientist at the University of Manchester and NCAS. Opinions my own.
I've only just recently got round to playing Control, which as a fan of the Max Payne games, was far too late.
November 28, 2025 at 12:30 PM
I've only just recently got round to playing Control, which as a fan of the Max Payne games, was far too late.
If it's work related, you can find my profile and contact details at both the University of Manchester and NCAS websites. Google is pretty good at finding them (rather not post direct links here, sorry).
November 25, 2025 at 2:26 PM
If it's work related, you can find my profile and contact details at both the University of Manchester and NCAS websites. Google is pretty good at finding them (rather not post direct links here, sorry).
Noticed you namechecked my 2010 paper there! 😁 Cheers!
November 14, 2025 at 3:03 PM
Noticed you namechecked my 2010 paper there! 😁 Cheers!
That is a fantastic graphic. Says what needs to be said!
November 12, 2025 at 10:07 AM
That is a fantastic graphic. Says what needs to be said!
In situations like that, the AQI is likely to be "many". 😷
October 27, 2025 at 1:50 PM
In situations like that, the AQI is likely to be "many". 😷
The study here doesn't use the type of model that can predict acute short term exposure, which is why it's not evaluated, but the overall population health burden from long term exposure alone is quantifiable. (2/2)
October 23, 2025 at 6:52 PM
The study here doesn't use the type of model that can predict acute short term exposure, which is why it's not evaluated, but the overall population health burden from long term exposure alone is quantifiable. (2/2)
Just to clear one point up, PM2.5 causes BOTH long term and short term harm. Acute high concentrations do trigger asthma attacks and so on, but sustained long term exposure increases the risk of heat attacks, cancer, strokes, etc. and even small changes in the average make a difference. (1/2)
October 23, 2025 at 6:52 PM
Just to clear one point up, PM2.5 causes BOTH long term and short term harm. Acute high concentrations do trigger asthma attacks and so on, but sustained long term exposure increases the risk of heat attacks, cancer, strokes, etc. and even small changes in the average make a difference. (1/2)
I use images like that from LS Lowry paintings in presentations to show how much Manchester has improved over the years!
October 23, 2025 at 11:42 AM
I use images like that from LS Lowry paintings in presentations to show how much Manchester has improved over the years!
The big caveat in all of this is that this research isn't peer-reviewed. Furthermore, rather frustratingly, it doesn't even say what model they used to predict the impacts. I'd assume it's either PCM or CMAQ, but if anyone happens to know, I'd be interested. (3/3)
October 23, 2025 at 11:35 AM
The big caveat in all of this is that this research isn't peer-reviewed. Furthermore, rather frustratingly, it doesn't even say what model they used to predict the impacts. I'd assume it's either PCM or CMAQ, but if anyone happens to know, I'd be interested. (3/3)
This one for me is the most interesting bit. The second panel is what would happen to PM2.5 if people ditched the wood burners and only relied on their primary domestic heat source (usually gas). The numbers don't look huge, but in dense population centres the health impacts can add up. (2/3)
October 23, 2025 at 11:35 AM
This one for me is the most interesting bit. The second panel is what would happen to PM2.5 if people ditched the wood burners and only relied on their primary domestic heat source (usually gas). The numbers don't look huge, but in dense population centres the health impacts can add up. (2/3)