The World’s Most Polluted Cities

Worlds Most Polluted Cities

The air pollution in these cities can be deadly for people and animals. Not to mention that it can damage plants and water resources. It is therefore important to protect our planet from air pollution. We are all affected by air pollution to some extent. That’s why we need to protect the environment and the health of our population.

Buenos Aires

Despite its reputation as one of the world’s most pollutes cities, Buenos Aires has taken several steps to combat the problem. For one, it has invested in the construction of holding reservoirs and urban drainage systems. It also makes use of technology to monitor the threat of flooding. It has set a target to install 28 hydro-meteorological sensors by 2020. These sensors collect data on rainfall, pipe capacity, and weather conditions and feed that data to a central control center.

Pollution in Buenos Aires is caused by various factors, including transport, industrial activity, and the activities of the population. The city’s air quality is monitored by the Air and Noise Monitoring Network, which allows for a comprehensive analysis of street pollution, urban background, and human exposure to various pollutants. The network also monitors nitrogen and carbon monoxide levels, and atmospheric variables such as temperature and atmospheric pressure. In the near future, it will also monitor ozone levels.


Delhi is one of the world’s most heavily polluted cities, according to the latest Air Quality Index report. The report ranks 7,239 cities in terms of air quality, based on data from ground-based monitoring stations and satellite imagery. The report also looks at the causes of air pollution, including crop burning, which accounts for more than 45 per cent of the pollution in Delhi.

In Delhi, pollution levels are more than double WHO guidelines for 80% of the city’s residents. Even the trendiest part of the city, Khan Market, is awash with anti-pollution mask shops. Hundreds of people have queued up for the specialized masks, and people have been vocal on social media about their concerns.


According to a new report, Kolkata is one of the world’s most pollution-ridden cities. This pollution causes health problems, including respiratory conditions and impaired vision. Its residents have higher levels of fine particulate matter (PM2.5), which is dangerous because it clogs the airways. Furthermore, a high level of PM2.5 is associated with premature death.

The study used data collected from ground-based sources and computer models to estimate air quality in cities around the world. It found that Kolkata has the eighth highest attributable death rate from PM2.5 – the amount of fine particulate matter that causes respiratory problems. The report ranked the city below cities like Beijing, Kano, and Lima in the list of cities with the highest levels of PM2.5.

The report also found that Delhi and Kolkata are two of the world’s most polluted areas. The study measured PM2.5 levels in 7,000 cities around the world. In India, Delhi was ranked as the world’s most polluted city, while Kolkata came second with an average of 84 mg/m3. In China, Beijing, Shanghai, and Chengdu were also ranked as one of the world’s most polluted cities.


Xinxiang’s air quality was one of the worst in the world in 2017, but it has subsequently improved. The city’s mean air quality in 2018 was 61.4 ug/m3, while its mean readings for 2019 and 2020 were 55.7 ug/m3 and 51.5 ug/m3, respectively. However, the readings for 2020 may have been artificially low due to the COVID-19 pandemic, which limited air travel and prevented some industrial activities.

Air pollution in the Yangtze River Delta region is getting worse, with some cities now reaching levels twice the national standard. In 2014, Xinxiang was ranked as the world’s second-most-polluted city. But the pollution level in the city has improved in recent years, and its average PM2.5 reading has dropped by more than ten percent.


Ulaanbaatar, Mongolia, is the coldest capital in the world, yet it is also one of the world’s most pollute cities. During the winter, the air quality in Ulaanbaatar is so bad that it can make it difficult for people to breathe. This has led to many health problems, including bronchitis, asthma, and pneumonia.

The pollution in Ulaanbaatar is primarily caused by dust from the desert and unpaved roads. It is also exacerbated by the burning of coal and wood in homes. Nearly 175,000 households in the city’s ger districts use coal and wood to heat their homes.

The National Agency for Meteorology and Environmental Monitoring in Mongolia operates 42 monitoring stations. These sites measure particulate matter, nitrogen dioxide, and sulfur dioxide on a regular basis. However, ozone and carbon monoxide levels are measured at only a few sites.