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Hi Guy“I have a chart in front of me that says that in 2013 all of road transport in LBH produced about 40% of the NOX, aviation about 30% and the rest (industry, domestic, rail, 'non road mobile machinery') about the same.”I’d be interested to see this, is it email-able?30% from aviation means where I wrote ‘a fine rain of background toxicity falling on us from the Heathrow flight paths’ perhaps I should actually have written ‘a constant deluge  of toxic lethality’.  Guess it’ll go from deluge to waterfall if Runway 3 gets built.You’re right that all road transport including electric vehicles produce particulates.  Tyres and brake pads wear down as abrasion turns them into very small airborne particles.  Diesels pump it out of their exhaust as well though.  I remember seeing some graphs showing very dramatic drops in NOX and particulates in London during the bus strikes.Loved the comment on your weekly blog about the Heathrow chap trying to say that adding 40,000 extra parking spaces will reduce road traffic.  At some point absolute bleeding common sense really does out trump any statistical analysis based on biased and skewed initial assumptions!Also understand that it’s not in the council’s power to block Heathrow expansion.  It is within their power though not to promote it quite so enthusiastically.I for one, formally objected to the expansion and equally responded to the Major’s ULEZ consultation with a request to encompass the A4/M4 corridor through Brentford.

Lorne Gifford ● 2718d

It's idling vehicles and slow moving traffic that cause avoidable pollution.Too many traffic schemes and poor road infrastructure have created more congestion and slowing of traffic where safety is not compromised.The huge growth in delivery vans is also a factor. They use diesel and not just for the engines but also for the chilling units.Whilst a big stick is used on residents whose parked car is not polluting. Nothing is going to change on those who drive through the town or use vehicles  in the area.In my view the solution like the ULEZ is knee-jerk and again fiscally based and won't really achieve much apart from raising a few bob which will, like other promises get put into showboat projects which seldom achieve much. Then most of the revenue gets sucked up in admin costs.It would be better to insist all delivery vehicles are, at the very least hybrid and subsidy provided to allow solar panels on van roofs to operate chiller units to minimise the need for fossil fuel consumption.Large 4WDs and SUVs registered in urban areas should pay a much larger CPZ charge as they are simply status symbols and not working vehicles. Some are so far removed from their original roots of working vehicles that they will never be fit for purpose.Buses Taxis and Minicabs and trucks.The private car is being targeted simply because it is the easiest option  But it is the least polluting group.  Just like homes, the problem not being addressed is over concentration of population and the uneven spread of the economy in this smallish island.

Raymond Havelock ● 2721d

If you’re referring to the type of pollution that kills people, then the most polluting vehicles are diesels.  Specifically, any diesel more than a couple of years old as particulate output increases with age, as well as any diesel that’s just started up and is running with a cold catalyser.  Particulates and NOX are lethal to humans and at about the same level of human damage in Brentford as smoking a half a pack of fags a day; babies, children and the infirm included.  Buses, lorries and taxi’s are perhaps the very worst offenders, as well as those white vans you often see billowing sooty exhaust as they cut you up.  Since jet fuel is very close to diesel in its composition and jets don’t have catalisers or particulate filters, there’s also a fine rain of background toxicity falling on us from the heathrow flight paths.However, if your referring to the type of pollution that causes global warming, then petrol engines are more offending because then generate more CO2.  Not much more, but still a greater output than diesel.Living in Brentford, my concern is that we almost constantly exceed the legal pollution limits that are allowed to be inflicted on a population.  I’m sure there’s a duty of care somewhere within the Councils obligations that means it should be prioritising not killing its citizens and getting the toxic sewer that is the A4/M4/Heathrow expansion/excessive building under control.  Perhaps now that the development, regeneration & environment department appears to have been split up (nice pay off to the former director by the way), some proper environmental control will be exercised.

Lorne Gifford ● 2725d