The 50 most polluted roads in the UK are all in London. Even number 50 on the list is two and a half times the legal EU level.
This is not a place designed for big nights out. It is a research laboratory created by psychologists at London South Bank University.
Depending which part of London you live in, you may find this hard to stomach.
And an estimated 400,000 poor children in London are missing out on support to keep their homes warm, according to a new report.
The Children's Society has called for Government action now to move children in from the cold.
Public Health England said it was pleased that research further supported the use of a new Down's Syndrome test which is being trialed at Great Ormond Street Hospital.
The UK National Screening Committee (UK NSC) is currently working with clinicians to trial the use of NIPT in the NHS and will make a formal recommendation on whether to introduce the test when the results of the trial are known.
The UK NSC welcomes research undertaken by the scientific advisory committee at the Royal College of Obstetricians and Gynecologists to see whether the test would be effective in the identification of chromosomal abnormalities in unborn babies.
– Dr Anne Mackie, director of programmes for the UK National Screening Committee
Early indications suggest that using NIPT to screen women who are found to be at a higher risk of having a baby with Down's syndrome would enable earlier and safer detection of the condition.
A pioneering new test for Down's Syndrome which is undergoing trials at Great Ormond Street Hospital has received further support from a new research published by the Royal College of Obstetricians and Gynecologists.
Non-invasive prenatal testing (NIPT) is currently only available in private hospitals and its makers claim it can predict with 99% accuracy whether a baby has Down's Syndrome or other rare genetic disorders.
Now a team from University Hospitals Bristol NHS Foundation Trust claim it is so accurate it would dramatically cut the need for invasive tests which carry a risk of miscarriage. But the paper also found that a minority of mothers may occasionally be informed of findings of uncertain significance.
– Professor Peter Soothill, consultant in foetal medicine at the University Hospitals Bristol NHS Foundation Trust
This is the most exciting development in pregnancy care in many years.The new test is so accurate that the number of women who will need invasive tests is going to fall very dramatically while still informing those who wish to know about chromosomal abnormalities.The test is not yet available on the NHS but we think it will become a primary screening tool for all women who wish to know about foetal chromosomal abnormalities
– A spokesman for Boris Johnson
Since the Mayor was elected, NO2 emissions have reduced by 20 per cent and the number of people living in areas exceeding NO2 limits has halved but he fully recognises the need to take further action.
This includes the introduction of the world's first Ultra-Low Emission Zone in central London from 2020, tougher requirements for taxis from 2018 and a £20million fund to tackle local problem areas.
These most ambitious measures will deliver enormous economic and environmental benefits for central London and will make this global city an even better place to live, work and visit.
The toxic gas nitrogen dioxide (NO2) can lead to respiratory disease and can cause the lining of the lungs to become inflamed.
The government is the subject of legal action after failing to deal with the high level of the toxic gas in the country's cities.
Most British cities have plans to reduce traffic fumes to within the legal limit by 2020, however London has insisted that it could not meet the NO2 targets set for it in 1999 until at least 2025.
London has the highest levels of NO2 of any European capital city and the UK has the highest proportion of zones breaching legal limits.
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.
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.
A stem cell trial treating heart attack patients will help to see if their "natural environment" can treat the disease. Co-researcher Professor John Martin, from University College London, said:
This trial brings together a powerful partnership of European doctors and scientists to solve a fundamental problem of importance to all people. It will give an answer about whether adult multi-potential stem cells in their natural environment can treat human disease.
Doctors at a London hospital have started treating heart attack patients with their own stem cells in the "biggest and most comprehensive" trial of its kind ever undertaken.
It follows the "Regenerate" series of three smaller charity-funded studies led by Barts Health NHS Trust consultant cardiologist Professor Anthony Mathur:
– Professor Anthony Mathur, Barts Health NHS Trust consultant cardiologist
It has taken two years to get to the point where we are ready to accept patients, but we have now reached that stage and we are all very excited.
Our studies will tell us if adult stem cells from bone marrow can repair damaged hearts and, if so, how these cells should be administered to patients.