Even low levels of air pollution linked with serious changes in the heart, according to new UK research

ScienceDaily | 8/3/2018 | Staff
nallynally (Posted by) Level 4
The study, led by Professor Steffen Petersen, was part-funded by the British Heart Foundation (BHF) and published in the journal Circulation.

It looked at data from around 4,000 participants in the UK Biobank study, where volunteers provided a range of personal information, including their lifestyles, health record and details on where they have lived. Participants also had blood tests and health scans, and heart MRI (magnetic resonance imaging) was used to measure the size, weight and function of the participants' hearts at fixed times.

Team - Association - Roads - Dioxide - NO2

The team found a clear association between those who lived near loud, busy roads, and were exposed to nitrogen dioxide (NO2) or PM2.5 -- small particles of air pollution -- and the development of larger right and left ventricles in the heart. The ventricles are important pumping chambers in the heart and, although these participants were healthy and had no symptoms, similar heart remodelling is seen in the early stages of heart failure.

Higher exposures to the pollutants were linked to more significant changes in the structure of the heart. For every 1 extra µg per cubic metre of PM2.5 and for every 10 extra µg per cubic metre of NO2, the heart enlarges by approximately 1 per cent.

Study - Exposures - PM2 - UK - Guidelines

In the study, average annual exposures to PM2.5 were well within UK guidelines (25µg per cubic metre), although they were approaching or past World Health Organisation (WHO) guidelines (10µg per cubic metre).

'Doctors and the general public all need to be aware'

Air - Pollution - Risk - Factor - Deaths

Air pollution is now the largest environmental risk factor linked to deaths in England. The UK Government's consultation on their draft Clean Air Strategy closes on 14 August 2018, which commits to halving the number of people...
(Excerpt) Read more at: ScienceDaily
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