Zipjet’s Top 5: Dirtiest Places

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If you’ve ever used public transport in a big city, you’re aware that it’s not always the cleanest place to be.

Trash, pigeons and other unmentionables abound, but how dirty is your daily commute?

With the help of Limbach Analytics GmbH, we conducted a study in London, Paris and Berlin to see what the top five dirtiest parts of your daily commute are, and you might be surprised by the results!

Below, we’ll list London’s top five dirtiest public places – are you ready?

1. London Black Cab


You may be surprised to find out that the London Black Cab actually had the highest concentration of bacteria.

From non-fermenting gram-negative rods to Enterobacteriaceae and enterococci – the cabs had a lot of germs to analyse.

Now, if we really think about it, it’s not too shocking. With the thousands of people who pass through the back seats of cabs every day, some germs are bound to be left behind.

But – as, arguably, the most expensive form of travel in the city, it’s strange to think it’s also the dirtiest!

2. London Victoria


Now this one may not be all that unexpected.

Millions of people pass through the station each year – with dirty shoes, various illnesses and trash galore, it’s no wonder London Victoria isn’t the cleanest place in the city.

While it has a high concentration of spore-forming gram positive rods, it’s level are various germs was somewhat low.

Thank heavens for small mercies.

3. The Underground


Perhaps the most efficient, and at times the most confusing, form of London transport, the Underground isn’t what you might call an impeccably clean place to spend your time.

Housing non-fermenting gramnegative rods, enterobacteriaceae and enterococci, the Underground has its fair share of germs to go around.

How to stay bacteria-free here? Try your hardest not to touch many surfaces, which is where these bacteria and germs call home.

4. Buses


We’re as surprised as you are that the bus isn’t higher on the list – but coming in at #4, London buses aren’t the city’s dirtiest place.

Though they have their fair share of germs to go around, they weren’t home to the highest concentration of bacteria.


5. Uber


Of all the public transport tested, Uber had the lowest concentration of bacteria, hooray!

As someone’s personal car, it’s most likely a good bit easier to keep germ and bacteria-free with regular cleaning.

So next time you take an Uber, remember to enjoy the cleanliness!


Now, it’s no shock to anyone that cities are home to millions of germs – as they’re also home to millions of people, flora & fauna. But there are simple ways to stay clean and healthy.

After using public transport, refrain from eating or touching your face until you can properly wash your hands with warm water and antibacterial soap. If you need to cough or sneeze, have a tissue on hand to cover your mouth and nose.

Always wash your hands after touching animals and remember to clean your desk and other work surfaces regularly – you never know what you’re bringing in from your commute.

And finally, make sure to wash your clothing on a weekly basis at 30-60 degrees Celcius to ensure that bacteria isn’t building up in your fabric.

If you’re interested in more details and the methodology of this study, check out the full Dirty Cities Index on our website.

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