the Gailey Freight Hub
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Air pollution comes from many sources including wind borne
dust from the sahara. However most pollution in UK is from
vehicles, residential heating and industrial processes. A
large and dangerous increase has been from the proliferation
of diesel engined vehicles (originally promoted by the
Size matters, and HGVs and loco traction produces 20%
of greenhouse gas emissions here. Whereas it would seem more
efficient to transfer goods by rail, this is only the case
if long distances are travelled and electrification used.
Short distances between multiple nodes causes a huge
concentration of inefficient journeys at each node.
freight trains (such as are proposed here) are often
older, larger and more polluting than their HGV
competitors and many are exempt from regulation. They
produce high levels of local pollution in shunting
situations like those proposed. The human cost of
all this comes in the form of lung, heart & brain health
problems from the exhaust byproducts.
Air pollution is usually recorded in terms of an Air Quality
Index based on 5 pollutants (2 sizes of particles and 3
up to 10 micrometers diameter (10μm or PM10) which includes
fine dust, pollen and mold particles. Much smaller particles
below 2.5μm diameter known as PM2.5 which mainly
come from engine exhaust and smoke, and their reactions with
Such tiny particles can penetrate deep into the lungs,
delivering harmful chemicals as they do and being difficult
or impossible for the body to eliminate. Mainly blamed for
exacerbating heart and lung disease 6% of deaths in
Birmingham blamed on such particles.
research has linked iron oxides, especially from
diesel exhaust with Alzheimers disease. See the relative
smallness of PM2.5's below.
Gases: Nitrogen Dioxide (NOx), Sulphur Dioxide (SO2) and Ozone
(O3) from exhaust gases, industrial pollution and secondary
reactions with atmospheric gases. Creating smog and irritants
promoting lung disease. Carbon Monoxide is often measured as
it reduces uptake of oxygen into the blood.
Industrial Pollution tends to be better monitored than other
local forms of pollution. Some of the older processes have
been phased out. The brand new waste incineration plant at
Four Ashes is state of the art. Residual gases are
continuously monitored and combustion adjusted to keep within
environmental guidelines at point of exit. One couldn't help
but wonder what happened to the exhaust plume as it exited the
stack within legal limits only to meet with un-monitored M6
& A5 traffic generated pollution a few hundred metres away
- where testing doesn't occur.
the Gailey Freight Hub group will be measuring air
quality levels at key points around the site.
ECOLOGY (Flora &
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