Experts at the Consumer Data Research Centre (CDRC) have analysed areas across south west London to show the unhealthiest places in the region.

Specialists at CDRC investigated wellbeing by monitoring pollution levels in each London neighbourhood, as well as the number of parks and recreational spaces.

The availability of health services, such as GP surgeries and pharmacies, and the number of takeaways, pubs and gambling shops was also considered.

An interactive map has now been created to display the findings, showing both the healthiest and unhealthiest areas based on the factors.

How does the map work?

The map tracks a CDRC's health index - also known as Access to Healthy Assets and Hazards (AHAH).

It takes into consideration:

• Retail environment (access to fast food outlets, pubs, off-licences, tobacconists, gambling outlets)

• Health services (access to GPs, hospitals, pharmacies, dentists, leisure services)

• Physical environment (Blue Space, Green Space - Active, Green Space - Passive)

• Air quality (Nitrogen Dioxide, Particulate Matter 10, Sulphur Dioxide).

Each of these factors is tracked and provides an overall AHAH score for that area.

The lower the score the healthier the area is, appearing blue on the map.

Unhealthier areas have higher scores and are shown in red.

Areas are also ranked one to 10 - healthiest areas are given a rank of one while the unhealthiest regions are classed as a 10.

If you want to check out your area in more detail you can view the whole map by clicking here.

Below is the ranking of the five unhealthiest areas in south west London, followed by the scores of the other major areas, including the healthiest:

Balham – 10

Wandsworth Times:

Popular with families and young professionals, Balham has a high concentration of red indicators (the worst performing decile) meaning the area is extremely unhealthy. The AHAH score is 40.06 with very poor air quality scores, including high levels of nitrous oxide and sulphur dioxide. 

Putney - 10

Wandsworth Times:

Putney is in the 10th decile with an AHAH score of 35.19. Areas close to the station and high street are particularly red, becoming less so nearer Roehampton.

Tooting - 9

Wandsworth Times:

Tooting's overall AHAH score is 29.81 with areas reaching as high as 41.72, such as in Tooting Graveney.

Southfields - 9

Wandsworth Times:

Famous for the grounds of Wimbledon Tennis, Southfields is also in the 9th decile. The AHAH score is 29.622 but this is far lower near Wimbledon Park.

Earlsfield - 7

Wandsworth Times:

Lowest on the list, Earlsfield is in the 7th decile. The AHAH score is 24.303 less access to fast food stores, gambling outlets and pubs.