It is one of a range of measures suggested to prevent the 28-36,000
deaths per year in the UK attributed to long-term exposure to air
pollution. Air pollution is 'the biggest environmental threat to
health in the UK' according to the BBC report, and causes heart
disease, stroke, respiratory disease, and lung cancer, and
exacerbates asthma.
Other recommendations include:
redesigning cities so people aren't so close to roads, with
wider streets, or hedges used to screen against pollutants
investing in clean public transport as well as foot and cycle
paths
encouraging uptake of low-emission vehicles, and installing
electric car charging points
discouraging highly polluting vehicles from entering populated
areas
Public Health England on air pollution: the report itself
Paul Cosford's foreword says that the report provides
evidence-based advice, focused on actions available to local
authorities, and national actions. He says that there is '...a
simple truth, that the evidence and technology are available to make
delivery of cleaner air feasible for all of us. A key challenge to
this is the commonly-held view that actions to reduce air pollution
run counter to economic growth and development. In my view the
evidence presented in this report highlights that this is not the
case.'
Cosford adds that air pollution is an '...unacceptable, serious and
avoidable source of harm to our health.'
The executive summary says that it is best to tackle pollution at
source, rather than trying to reduce concentrations of pollutants
after they have been emitted, or rely on individuals to avoid
exposure by personal actions or behaviour.
Actions should be focused on children, because exposure to air
pollution in early life can have a long-lasting effect on lung
function.
The vehicle/fuel interventions recommended are on page 50 of the
report. They include providing school buses, promoting walking and
cycling, local congestion charging, increasing fuel duty/target at
diesels, and improved anti-idling enforcement. The report says that
the most cost-effective single intervention is road pricing.
The 'behavioural interventions' section states: 'There is strong
evidence for the health benefits of physical activity associated
with active travel, such as walking and cycling.' Raising awareness
is not enough to effect change: it must be done in conjunction with
other interventions.
Besides walking and cycling, no idling campaigns are mentioned as
behavioural interventions. Anyone who has walked along any street in
the UK will have noticed that sitting in a stationary car with the
engine running while glued to a mobile phone, is at epidemic levels.
It is perhaps the national pastime.
The 'promising intervention strategies' has a section on transport
priorities. It says that the highest public health benefit comes
from measures aimed at '...reducing the most polluting forms
of transport, such as low emission zones, road pricing and low
emission modes of transport. Investment in infrastructure and public
transport is required along with the promotion of active travel and
complementary behavioural interventions at the design stage.'
The planning interventions section talks about producing a pattern
of land use that reduces the demand for polluting car journeys.
Sir Gary Verity says 2019 will be huge for Harrogate, as it will
be the centre of the cycling world. He wants local businesses to
seize the opportunity.
NICE recommendations on physical activity have some truly
revolutionary ideas in them, about reallocation of road space, and
priority for active travel over private cars.