PM 2.5 is invading the world. There are only 7 cities with good air. Top-5 of “Thailand” with the worst air in “ASEAN”.

The 2023 Climate Report from IQAir, a global air quality monitoring company, presents the 100 cities with the worst air. There are 99 cities in Asia and 83 cities in “India”. The city with the worst air in Thailand is Pan District of Chiang Rai Province, in 115th place.

  • IQAir's 2023 climate report reveals that Begusarai, India is the most polluted city in the world. With PM2.5 concentrations 23 times higher than WHO standards, Bangladesh has become the country with the worst air quality in the world. 16 times more than WHO standards.
  • Thailand has the 36th worst air quality in the world and 5th in Southeast Asia, with Chiang Rai Province's Pan and Mae Hong Son Province's Pai District ranked among the 5 worst air quality areas. PM2.5 toxic dust. worst in Southeast Asia.
  • Of the 134 countries and regions surveyed in the report, only 7 cities have clean air, PM 2.5 levels within WHO guidelines, meaning annual average PM 2.5 levels should not exceed 5 micrograms per cubic meter.

The 2023 Climate Report from IQAir, a global air quality monitoring company, presents the 100 cities with the worst air. There are 99 cities in Asia and 83 cities in “India”. The city with the worst air in Thailand is Pan District of Chiang Rai Province, in 115th place.

IQAir tracking companyAir quality around the world The 2023 climate report lists the 100 cities with the worst air. There are already 99 cities in Asia, and 83 cities inIndia“back”PM2.5:“It is more than 10 times higher than the standards of the World Health Organization or WHO.The city with the worst airIn Thailand, Pan District in Chiang Rai Province ranks 115th.

Nevertheless,climate crisisIt plays an important role in causing poor air quality. It is harmful to the health of billions of people around the world.

“South Asia” has the most toxic air in the world.

This study only collected dataand small dust particlesOr PM2.5, the smallest pollutant measuring just 2.5 microns, or 1/30th the diameter of a strand of hair. But it is the most dangerous. Collecting data on 7,812 cities, covering 134 countries, regions and territories, it found that only 9% of cities have air quality that meets the WHO standard of no more than an annual average of PM2.5 5 micrograms per cubic meter.

The city of Begusarai with about 500 thousand inhabitants is located in the northern Indian state of Bihar. It was named the world's most polluted city in 2023, with an annual average PM2.5 concentration of 118.9, which is 23 times higher than WHO standards.

Positions 2-4 continue to be cities in India, including No. 2 Guwahati in the state of Assam, No. 3 Delhi and No. 4 Mulanpur in the state of Punjab.

The report states that India's 1.3 billion people, or 96% of the country, live in environments where PM2.5 value 7 times higher than stated

The 10 countries with the highest PM2.5 values ​​in 2023 will be found.

1. “Bangladesh“, became Countries with the worst air quality in the world With PM2.5 values ​​of 79.9, which is 16 times higher than WHO standards.

  1. Pakistan (73.7)
  2. India (54.4)
  3. Tajikistan (49)
  4. Burkina Faso (46.6)
  5. Iraq (43.8)
  6. United Arab Emirates (43)
  7. Nepal (42.4)
  8. Egypt (42.4)
  9. DR Congo (40.8)

It can be seen that all the countries are located in the regions of South Asia, Central Asia and Africa, but the most worrying.South Asiabecause among the 30 cities with the most air pollution, 29 cities are in India, Pakistan or Bangladesh.

“We have seen that air pollution affects every part of our lives. And extreme weather conditions can kill people in three to six years, causing suffering to citizens,” said IQAir Global CEO Frank Hames.

Small dust particles come from many sources, including: the burning of fossil fuels Examples include coal, oil and gas, dust storms, garbage burning and forest fires when PM2.5 enters the body. Small dust This can get into the lung tissue. and can enter the blood There are many studies that show that PM2.5 causes asthma. Heart and lung diseases, cancer and other respiratory diseases, as well as intellectual disabilities in children

air pollution It kills approximately 7 million people worldwide each year. That's more than AIDS and malaria combined. The most affected are developing countries andpoor countrywhich rely on dirty fuels for heating Cook and light the family. This will lead to air pollution inside the residence as well.

Hames said pollution levels will not improve without changes in energy and agricultural infrastructure.

“Thailand” was ranked among the “top 5” of bad air conditions in “ASEAN”.

Air quality in Southeast Asia is worse in 2023 than in 2022, with PM2.5 dust levels up more than 20 percent and five areas with poor air quality, IQAir found. haveAmount of toxic dust PM2.5 More than 50 micrograms per cubic meter. In 2022, no area has a rate above the annual average.

“Thailand” has the 36th worst air quality in the world and 5th in Southeast Asia. There is an annual average amount of PM2.5 toxic dust of 23.3 µg per cubic meter. This is 4.7 times higher than the WHO air quality recommendation, which is a 28% increase compared to 2022.

meanwhile Phan District in Chiang Rai Province and Pai District in Mae Hong Son Province were ranked among the top 5 areas with the worst PM2.5 dust levels in Southeast Asia. 18.1 μg/m2 The period between February and April 2023 is the period with the worst air quality. In Chiang Mai province, the monthly average of PM2.5 toxic dust rose from 53.4 to 106.4 micrograms per cubic meter. This is more than 150 percent more than the monthly average for the same period in 2022.

As for Bangkok, that's itCities with poor air qualityIt is the 37th most polluted city in the world. There is an annual average amount of PM2.5 toxic dust of 21.7 micrograms per cubic meter.

Thailand says maize expansion is an important driver of cross-border investment and agricultural land expansion in the Mekong sub-region, according to Greenpeace data. After all, it didToxic dust crosses the borderBack to Thailand, the government should urgently require the Clean Air Act to provide a transparent traceability system in the supply chain and implement laws that could criminalize the meat industry for transboundary toxic dust and deforestation. Because this is an urgent crisis, to which the government should prioritize the health of the people. more than the profits of industrial companies.

There are only 7 cities with clean air.

Of the 134 countries and regions surveyed in the report Only 7 cities have clean air with PM 2.5 levels according to WHO guidelines.

1. Puerto Rico's San Juan (2.7) has the best airwaves in the world.

  1. Wellington, the capital of New Zealand (3.1)
  2. Canberra, Australia (3.8)
  3. Reykjavik, the capital of Iceland (3.9)
  4. Hamilton is the capital of Bermuda (4.1)
  5. Tallinn, Estonia (4.6)
  6. Helsinki, Finland

The world's air is generally much cleaner than it was a century ago. But there are still places where pollution levels are extremely dangerous. Developed countries are also affected by it, for example, North America is greatly affectedforest fireinCanadaBetween May and October of last year, the report found that average monthly air pollution levels in Alberta were the same in May. Canada will exceed 9 times by 2022 This is the first time in 2023 that Canada has higher pollution levels than the United States.

at the same time forest fire It also affects cities across the United States. Minneapolis and Detroit also experienced average annual pollution increases of 30% to 50%, respectively. But in 2023, the most polluted city in the US was Columbus, Ohio, which topped the list. This position continues for the second year in a row.

Hames said:transboundary pollution“It is another big problem in the world because toxic fumes can spread from one country to other countries and can lead to air deterioration in the destination country.

For example, US cities were affected by forest fires in Canada. while the northern part of Thailand is affected by birthheat pointIn Myanmar, South Korea has had to contend with PM2.5 pollution from winds that blow smoke from coal-fired power plants in northern China into the country. at the same time, the weather is good in many Caribbean countries. Because the wind blows away air pollution.

Although air pollution has increased in most parts of the world, there are still some areas in the world with better air quality, such as China, where even last year industrial and economic activity began to recover after the outbreak of COVID-19. But it can still handle PM2.5 quite well.Dust levelHowever, Chile, which experienced major forest fires in February 2022, reported a 15% drop in PM2.5 pollution compared to 2022, and South Africa's annual average PM2.5 concentration also decreased by some amount. Like Chile.

from report data Global air quality in 2023 It shows that every country should focus on itSolving the problem of toxic dustseriously address the root causes of PM 2.5 by setting policies and budgets and making it a global issue that requires urgent action. effective Given the interests of people over industrial capital. Because access to clean air is a basic right of all people on this planet.

Source: Bloomberg, CNN, The Guardian

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