07/10/2026
Dear Deirdre Costigan MP
Re: Environmental and health impacts of the Trident Way data centre development, Southall
I am writing to you as a constituent in Ealing Southall to express my deep concern regarding the rapid expansion of data centres in our local area, specifically the redevelopment on Trident Way, which is close to my home. I was disheartened to watch your appearance on BBC 1’s Politics London show on 4th October 2026, where you openly declared your support for data centre developments. I strongly urge you to rethink this stance and prioritise the health of your constituents.
The planned installation of 218 back-up diesel generators at the Trident Way site poses a severe and direct threat to local air quality. While these generators are intended for emergency use and periodic testing, their collective emissions will drastically compound the ambient air pollution in an area that is already heavily overburdened. Specifically, Southall is already suffering from significant point source air pollution generated by the two asphalt plants in nearby Hayes.
When the wind is westerly, a pungent, overpowering diesel odour blankets our residential streets. This toxic mix of air pollution is actively damaging the health of vulnerable local residents, particularly children, the elderly, and those living with chronic respiratory conditions like asthma and COPD. The location of the data centre is adjacent to residential homes on Brent Road and understandably residents are concerned about the impact of background noise on their lives.
While the economic narrative surrounding these facilities is often highlighted, it cannot come at the expense of our right to breathe clean air. Southall should not become a sacrifice zone for resource-heavy digital infrastructure.
As our elected representative, I urge you to:
* Rethink your blanket support for these mega data centres and acknowledge the compounding environmental toll they take on West London.
* Advocate for strict, legally binding mitigations to protect residents, including a transition away from diesel backup systems toward zero-emission battery storage or green hydrogen alternatives.
* Demand rigorous, transparent independent air quality monitoring that specifically measures the cumulative impact of the Trident Way testing schedule alongside Hayes industrial emissions.
I look forward to hearing your position on how you plan to protect the respiratory health and wellbeing of the people who voted for you to represent them.
Yours sincerely,