Vlod,We are not saying that the industrial area doesn't contribute towards the PM10 readings, but that the railway, and the major roads near-by also contribute. I know the pollution levels are unacceptable, and I am against expansion of the industrial site, but a 'witch - hunt' against just those companies does not help resolve the issues.The pollution monitor at Southall near the railway line does not have the other factors near it, and so will record less PM10, also by this point the HSTs are generally up to speed and so not accelerating. Southall doesn't have the same 'goods yard' as Acton Main Line. The description of the Southall one is 'roadside', the Horn Lane one is 'industrial', so not really a fair comparison, the areas are very different.The pollution is a mixture of factors and that has to be addressed. None of us want the industrial sites to expand, but it seems unfair to put the blame totally on to Hanson/Gowing and Pursey. Their pollution output is a contributing factor, but not the only one.To improve the air quality at the Horn lane site, we need the railway to be fully electrified (which is going to happen), for there to be less in the way of diesel emissions from lorries/cars/buses, and for Gowing and Pursey/Hansons to clean up their act. If the latter can be achieved by the site meetings, then that is a big step forward.As you say, producing good comprehensive data is a problem and always will be, as there is always going to be other factors affecting the readings from the surrounding area.Sorry, but this is the way I see it!. It is probably not a popular view, but so be it!
Amanda Knights ● 4745d