While they said action should be taken to tackle air pollution, the study's authors also said the effects of poor air quality were small compared to other risk factors such as smoking and obesity.
A switch to diesel has been widely blamed for continued problems with air pollution in some towns and cities such as London.
But tackling PM10s 50% of which come from road surfaces, tyres and braking, would also need a focus on lighter cars.
Report author Dr John Gulliver suggested.
The study was not able to calculate how many deaths today were down to historic air pollution, but lead author Dr Anna Hansell said Public Health England had warned pollutants caused some 29,000 early deaths a year.
What this study is showing is that the effects of air pollution particular PM10s persist for a very long time, over 30 years in this particular study, and may actually be persisting longer than that.
It's also shown that the more recent exposures appear to be the more harmful to health.
home.bt.com/news/uk-news/19...
In one survey tire wear, 10,000 tonnes of rubber particles end up along the Swedish roads every year. This leads to a diffuse input of emissions of several compounds. Emissions of polyaromatic hydrocarbons (PAHs) are of particular concern.
The toxicity to Daphnia magna from 12 randomly selected car tyres was tested in this study. Rubber from the tread of the tyres was grated into small pieces, to simulate material from tire wear, and the rubber was equilibrated with dilution water for 72 h before addition of test organisms. The 24-h EC50s of the rubber pieces ranged from 0.29 to 32 gl-1, and the 48-h EC50s ranged from 0.0625 to 2.41 gl-1. Summer harder tyres were more toxic than winter tires.
ncbi.nlm.nih.gov/pubmed/156...
As these various reports point out direct us .. why increases in congestion and act of MAKING Tyres BLACK & HARDER.
So INSTEAD OF THE NATURAL WHITE SOFTER COLOR OF RUBBER types like winter tyres that PRODUCES less PM10s toxins
They choose a BLACK TYRE that might be MUCH STRONGER AND last LONGER but is more TOXIX contributing to PM10s & Resporty Diseases, Copd, Emphysema.
And what DO buses car exhaust gases do kick PM10s up of road surfaces into our faces in the inner city's