Public Health England has been talking about the steps that can be taken to reduce air pollution.
One of his recommendations is to stop vehicles being arrested on places near places such as schools and hospitals.
Little research has been carried out into the prevalence of mystery outside of schools.
It is clear, however, when looking at the effect that the type of vehicle involved is essential, with fewer emissions coming from more modern vehicles.
Many modern cars and buses have stop-start systems, which automatically turn off the device when a vehicle crashes, though people may be disabled.
A project commissioned by the office of the Lord Mayor of London in 2016 identified changes in pollution following a series of "action days", in which volunteer teams set about watching streets in four areas in London, asking drivers to turn their engine.
Finding carbon levels – pollution associated with a car screen, linked to lungs and heart disease – was 36% lower than these "working days" next to a school in Wandsworth.
But the results for this area were less so – in London the first test day rose by 33%, and there was a 22% reduction on the second day.
Researchers said that the Wandsworth site was particularly suited to the study, and in the main areas of the central locations, vans and lorries spread out into the street rather than being targeted. on one place. This made it harder to measure a strong signal.
The report said that school gates were a "problem across the castle and it was pleasing to see the greatest decrease in density" out of school.
A case study in the USA, published in 2013, showed air quality in four schools before and after campaigns to stop vehicles getting on.
He found there was a big reduction in air pollution at more schools – those with fewer buses saw no significant reduction in air pollution congestion.
Local authorities in the UK already have the power to issue driver-based penalty penalties in parked vehicles that refuse to turn their engines on demand.
The consultation on Cambustion emissions has looked at when it is possible to turn engines into reducing emissions.
It found that, in terms of emissions of oxygen nitrogen from a diesel car meeting requirements of Euro 5 (ie, any diesel car made before the end of 2015) it is important that If you are planning to be stationary for at least 30 seconds, you turn off the machine.
For Euro 6 diesel cars (those made after 2015) it is important to turn off if you do not want to move for three seconds.
The company also told the BBC that the biggest distributions come from completely cold at the start of the day and for acceleration of hardness. The rapid beat of emissions is particularly high because of this.
The lead organization for national health, the National Institute of Excellence and Care Care, cannot find compelling evidence to suggest dramatic changes to driving changes in atmospheric atmospheric pollution. But he also agreed that people were more likely to be adversely affected by their style of driving.
Transport for London says it wants motorcyclists to turn their engines at bus stops and when the service regulates them, and makes sure it has zero-rated engines. all buses in London by 2037.
FirstGroup, which runs local bus services around the UK, says it is encouraging motorists to put off their engine "where possible", and without taking up new vehicles t automatically if they are attracted to a particular period of time.
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