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EDITIONS
 Thursday, 5 December, 2002, 15:51 GMT
The Great Smog of London
Smog
The smog was the result of coal burning

Since Roman times, London has been known to people abroad as a land of mists and fogs. Until recently visitors to the city could take home with them tins of 'London fog'.

But the London smog of 1952 had more serious consequences.

On Friday 5 December 1952 a dense smoke-filled fog shrouded London and brought the city to a standstill for four days.

Motor vehicles were abandoned, trains were disrupted and airports were forced to close.

Cattle casualties

A Ministry of Health report estimated that 4,075 more people had died than would have been expected to under normal conditions.

"In a city traditionally notorious for its fogs there was general agreement on its exceptional severity on this occasion," the Ministry said.

The first reported casualties of the smog were cattle at the Smithfield Show.

At Sadler's Wells, the opera La Traviata had to be abandoned after the first act because the theatre was so full of smog.

Smog
Public transport ground to a halt

But it was the coroners and doctors in the city's hospital who first became aware of its deadly effects.

Most victims died from respiratory or cardiovascular problems but only those "prone to such ailments" were affected.

The main pollutants were believed to be by-products of coal burning which was said to have reached "exceptional levels".

And high pressure, near freezing temperatures and very light winds kept the smog hanging over London.

No school

But to the great majority of healthy individuals, the smog was little more than a nuisance.

One of those that experienced it was Ken Livingstone, the current Mayor of London, who "didn't have to go to school for a few days".

"The fog was simply so thick that parents were advised not to risk letting their children get lost on the way to school, unless it was literally round the corner."

He added: "When my parents went out they had to cover their nose and mouth with a handkerchief.

The Great Smog
5-9 Dec, 1952
Laced with sulphur dioxide, nitrogen oxides and soot
Caused by pollution and extreme cold
"In response to the 1952 smog, the Government passed legislation to phase out coal fires, which meant initially many people transferred to paraffin heaters.

"I have to say that I was quite pleased because it was my job to go out and clean the fire out in the morning - raking out all the bits of unburned coal to save them for the next fire."

The battle for better air quality continues. Mr Livingstone has to meet tough targets imposed by the government and the European Union.

London has 80 monitoring stations dotted all over the city.

Alun Michael MP
Air Quality minister Alun Michael visits a pollution monitoring unit
Inside each are computers and monitoring equipment that suck in air and measure the levels of carbon monoxide, nitrogen dioxide and other pollutants.

They also analyse fine particulates - very small pieces of pollution that can get deep down into the lungs.

On Thursday, after visiting one of these stations on Marylebone Road in central London, air quality minister Alun Michael said: "I remember the smogs Londoners suffered as I visited the capital most autumns as a child. They were awful.

"Nowadays, partly as a result of the Clean Air Act, we are lucky to enjoy much better air quality."

Targets missed

But it is estimated that London will not achieve the annual government targets for nitrogen dioxide (NO2) and daily fine particles.

Levels for both pollutants are expected to exceed their targets along the major road networks.

In addition, NO2 levels are also expected to exceed targets for central London and around Heathrow Airport.

Despite this, Gary Fuller from the environmental research group at King's College London, said: "Air quality has improved vastly in London, simply because we don't burn much coal anymore.

"The main threat is obviously cars. It's a case of can we improve air quality fast enough as more and more cars come onto the roads."

  WATCH/LISTEN
  ON THIS STORY
  The BBC's Tom Heap
"Our air is a lot clearer than it was 50 years ago but it is not clean"

Click here to go to BBC London Online
See also:

05 Dec 02 | Health
05 Dec 02 | UK
05 Dec 02 | England
12 Aug 02 | Science/Nature
10 Jul 01 | Asia-Pacific
Links to more England stories are at the foot of the page.


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