Hanoi, the capital of Vietnam, is a city that offers tourists an array of experiences – from its delectable cuisine and vibrant nightlife to its rich cultural heritage. However, it also holds the dubious distinction of being one of the most polluted cities globally.

The air quality in Hanoi is severely compromised due to smog and burning rubbish. Air pollution is gauged by the level of PM2.5 particulates – tiny particles in the air that are 2.5 micrometers or less in diameter.

These minute particles can enter the bloodstream when inhaled. As per the Air Quality Index, which assesses the harmful small air particles, Hanoi’s PM2.5 concentration is 24.3 times higher than the World Health Organization’s annual PM2.5 guideline value.

So, what causes such high air pollution in Hanoi?

This bustling city is a centre for industrial production and heavy traffic, both of which contribute significantly to the smog levels. Additionally, the practice of burning trash in Hanoi further exacerbates the air pollution, reports the Express.

Residents are advised to wear masks when outdoors, keep their windows shut to prevent the poor-quality air from entering their homes, use air purifiers indoors, and avoid exercising outside. Despite the alarming pollution levels, Hanoi continues to attract tourists.

A busy street in Hanoi
Hanoi is one of the most polluted cities in the world (Image: Getty)

According to the Vietnam Investment Review, on 16 January, as many as 160,000 tourists visited Hanoi, marking a 17% increase from the previous year.

Of these, approximately 28,400 were international tourists, marking a 67% increase, while the number of domestic visitors was around 132,000, a rise of 10%. The total income from tourism was roughly $24.7 million, indicating a 26 per cent year-on-year increase.

It’s not hard to understand why Hanoi is such a hit. This vibrant city was named the best Asian city getaway by the World Travel Awards in 2024 for the third year running.

Established 1000 years ago, Hanoi offers everything from excellent shopping opportunities to museums and even beaches: Halong Bay is just a short trip away from this bustling metropolis. Hanoi’s Old Quarter is a must-see for tourists with its cafes, restaurants and hundreds of market stalls.

Each street has its own unique offerings. For instance, Han Gai Street is well-known for custom-made silk clothing, while Lan Ong Street specialises in traditional herbal medicines.

Just two hours away from Hanoi is Halong Bay – perhaps Vietnam’s most renowned beach. A UNESCO World Heritage site, this breathtaking cove boasts white sandy beaches, beautiful caves and rock formations.

While it’s certainly feasible to make a day trip from Hanoi, spending a day or two in this stunning location will ensure you fully experience all it has to offer.