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Other central London locations feature in the top 50

Cockspur Street near Trafalgar Square registered 138 micrograms Credit: John Stillwell/PA Wire

Other highly polluted areas include Oxford Street near Marble Arch, which registered at 150 micrograms, and Cockspur Street near Trafalgar Square on 138 micrograms.

The fourth and fifth locations were Park Lane and Knightsbridge - which measured 135 and 134 micrograms respectively.

Nearly four times accepted levels of nitrogen dioxide levels around palace

Researchers found 152 milligrams of the gas per cubic metre of air around the palace - the EU legal limit is 40 Credit: Andrew Parsons/PA Archive

Grosvenor Place, which runs alongside the Queen's London residence, had the highest level of the toxic gas nitrogen dioxide in 2012.

Researchers found 152 milligrams of the gas per cubic metre of air, with a main contributor being diesel engine fumes. The EU legal limit is 40.

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Knifeman had a 'fixation' with Buckingham Palace

Sentencing Belmar to 16 months behind bars, Judge Michael Gledhill said that the knifeman had a 'fixation' with Buckingham Palace.

The potential grave danger, either to yourself or others was obvious by what you did.

There are countless other people in exactly the same situation as you following the relatively recent changes to the country's benefit system.

But they don't all arm themselves with knives and go to Buckingham Palace, intending to trespass within the grounds or enter the palace themselves. That is why what you did could be described as a stunt.

Knifeman jailed for Buckingham Palace break in attempt

A knifeman who tried to break into Buckingham Palace to complain about his benefits being cut has been jailed for 16 months. 44-year-old David Belmar jumped over a barrier armed with a six inch knife in October last year.

Aerial view of Buckingham Palace Credit: Press Association

Belmar was rugby tackled to the ground by armed police in the palace forecourt. Horrified tourists and their children looked on at the gates. The knife was found hidden inside a plastic bag in his jacket pocket.

New royal children exhibition

Details of how the royal children lived at Buckingham Palace over the last 250 years will be revealed at an exhibition next summer. The Royal Childhood exhibition will cover the years from the purchase of the palace by George III in 1761 to the birth of Prince George of Cambridge this year.

It will include photographs, clothing and the children's favourite toys. The exhibition will run throughout the summer opening of the Palace in August and September 2014.

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Charles' new scheme to curb gang violence

Charles in Sri Lanka. Credit: : Chris Jackson/PA Wire/Press Association Images

Prince Charles is to launch a campaign to boost the numbers of young volunteers in a bid to curb gang violence.

The Prince of Wales told the The Mail on Sunday that street murders can occur because young people lack structured activities.

Charles will join the Prime Minister, the Deputy Prime Minister and the Leader of the Opposition at Buckingham Palace this week along with 50 young people to launch a pledge campaign called #iwill.

Charles said that currently only 29 per cent of young people volunteer regularly, but wants 50 per cent of youngsters aged 10-20 to volunteer by 2020.

Eleven arrests over Anonymous Million Mask March

  • Scotland yard says eleven people were arrested nine for public order offences and two for criminal damage
  • Officers in riot gear controlled the crowd, which was part of a pre-arranged Anonymous Million Mask March
  • Several similar events were carried out in cities in Japan, Australia, and New Zealand in opposition to austerity cuts, corruption and an increase in state surveillance

Two famous London monuments damaged in protests

Hundreds of masked Anonymous protesters descended on Buckingham Palace and Parliament Square as part of a worldwide march against austerity cuts. A fire was started just yards from the gates of the palace as protesters threw glass bottles during clashes with police last night.

Protestors stand on the Queen Victoria Memorial outside Buckingham Palace Credit: Press Association

Nelson's Column in Trafalgar Square and the Victoria Memorial near the palace were damaged during the demonstrations. Fireworks were also reportedly thrown towards Buckingham Palace.

Fireworks are fired at Buckingham Palace Credit: Press Association
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