"third most polluted"

#12992224

16 November 2025

Thick smog covers Delhi, India, on July 24, 2024. India's capital, with 18 million residents, has the world's most polluted air with six times the amount of small particulate matter (pm2.5) than what the World Health Organization (WHO) considers safe. The air's hazardous amount of pm2.5 can reach deep into the lungs and enter the blood, causing serious long-term health effects. The WHO declares that India has the world's highest death rate from chronic respiratory diseases. India, home to 13 of the world's top 20 polluted cities, is also the third largest emitter of greenhouse gases behind the United States and China.

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#12992250

16 November 2025

Thick smog covers Delhi, India, on July 24, 2024. India's capital, with 18 million residents, has the world's most polluted air with six times the amount of small particulate matter (pm2.5) than what the World Health Organization (WHO) considers safe. The air's hazardous amount of pm2.5 can reach deep into the lungs and enter the blood, causing serious long-term health effects. The WHO declares that India has the world's highest death rate from chronic respiratory diseases. India, home to 13 of the world's top 20 polluted cities, is also the third largest emitter of greenhouse gases behind the United States and China.

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#12992266

16 November 2025

Thick smog covers Delhi, India, on July 24, 2024. India's capital, with 18 million residents, has the world's most polluted air with six times the amount of small particulate matter (pm2.5) than what the World Health Organization (WHO) considers safe. The air's hazardous amount of pm2.5 can reach deep into the lungs and enter the blood, causing serious long-term health effects. The WHO declares that India has the world's highest death rate from chronic respiratory diseases. India, home to 13 of the world's top 20 polluted cities, is also the third largest emitter of greenhouse gases behind the United States and China.

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#12992322

16 November 2025

Thick smog covers Delhi, India, on July 24, 2024. India's capital, with 18 million residents, has the world's most polluted air with six times the amount of small particulate matter (pm2.5) than what the World Health Organization (WHO) considers safe. The air's hazardous amount of pm2.5 can reach deep into the lungs and enter the blood, causing serious long-term health effects. The WHO declares that India has the world's highest death rate from chronic respiratory diseases. India, home to 13 of the world's top 20 polluted cities, is also the third largest emitter of greenhouse gases behind the United States and China.

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#12992359

16 November 2025

Thick smog covers Delhi, India, on July 24, 2024. India's capital, with 18 million residents, has the world's most polluted air with six times the amount of small particulate matter (pm2.5) than what the World Health Organization (WHO) considers safe. The air's hazardous amount of pm2.5 can reach deep into the lungs and enter the blood, causing serious long-term health effects. The WHO declares that India has the world's highest death rate from chronic respiratory diseases. India, home to 13 of the world's top 20 polluted cities, is also the third largest emitter of greenhouse gases behind the United States and China.

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#12992362

16 November 2025

Thick smog covers Delhi, India, on July 24, 2024. India's capital, with 18 million residents, has the world's most polluted air with six times the amount of small particulate matter (pm2.5) than what the World Health Organization (WHO) considers safe. The air's hazardous amount of pm2.5 can reach deep into the lungs and enter the blood, causing serious long-term health effects. The WHO declares that India has the world's highest death rate from chronic respiratory diseases. India, home to 13 of the world's top 20 polluted cities, is also the third largest emitter of greenhouse gases behind the United States and China.

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#12992363

16 November 2025

Thick smog covers Delhi, India, on July 24, 2024. India's capital, with 18 million residents, has the world's most polluted air with six times the amount of small particulate matter (pm2.5) than what the World Health Organization (WHO) considers safe. The air's hazardous amount of pm2.5 can reach deep into the lungs and enter the blood, causing serious long-term health effects. The WHO declares that India has the world's highest death rate from chronic respiratory diseases. India, home to 13 of the world's top 20 polluted cities, is also the third largest emitter of greenhouse gases behind the United States and China.

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#12992368

16 November 2025

Thick smog covers Delhi, India, on July 24, 2024. India's capital, with 18 million residents, has the world's most polluted air with six times the amount of small particulate matter (pm2.5) than what the World Health Organization (WHO) considers safe. The air's hazardous amount of pm2.5 can reach deep into the lungs and enter the blood, causing serious long-term health effects. The WHO declares that India has the world's highest death rate from chronic respiratory diseases. India, home to 13 of the world's top 20 polluted cities, is also the third largest emitter of greenhouse gases behind the United States and China.

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#12451319

7 June 2025

A food delivery driver wears a face mask as haze from wildfire smoke is visible in Toronto, Ontario, Canada, on June 06, 2025. Toronto's air quality ranks among the worst in the world today as smoke from wildfires burning in Manitoba, Saskatchewan, and Alberta drifts into the region. Toronto's air quality is currently the second most polluted major city in the world, according to a ranking by IQAir, a Swiss air quality technology company. This places it below Santiago, Chile, and above Montreal, which is in third place as it also faces wildfire smoke from western provinces. Environment Canada urges residents to limit their time spent outdoors and suggests that people consider reducing or rescheduling outdoor sports, activities, and events. Environment Canada notes that smoke may cause mild irritation to the eyes, nose, and throat, and may lead to headaches or a mild cough as well as wheezing, chest pains, or severe cough.

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#12451320

7 June 2025

Haze from wildfire smoke is seen in Toronto, Ontario, Canada, on June 06, 2025. Toronto's air quality ranks among the worst in the world today as smoke from wildfires burning in Manitoba, Saskatchewan, and Alberta drifts into the region. Toronto's air quality is currently the second most polluted major city in the world, according to a ranking by IQAir, a Swiss air quality technology company. This places it below Santiago, Chile, and above Montreal, which is in third place as it also faces wildfire smoke from western provinces. Environment Canada urges residents to limit their time spent outdoors and suggests that people consider reducing or rescheduling outdoor sports, activities, and events. Environment Canada notes that smoke may cause mild irritation to the eyes, nose, and throat, and may lead to headaches or a mild cough as well as wheezing, chest pains, or severe cough.

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#12451322

7 June 2025

Haze from wildfire smoke is seen in Toronto, Ontario, Canada, on June 06, 2025. Toronto's air quality ranks among the worst in the world today as smoke from wildfires burning in Manitoba, Saskatchewan, and Alberta drifts into the region. Toronto's air quality is currently the second most polluted major city in the world, according to a ranking by IQAir, a Swiss air quality technology company. This places it below Santiago, Chile, and above Montreal, which is in third place as it also faces wildfire smoke from western provinces. Environment Canada urges residents to limit their time spent outdoors and suggests that people consider reducing or rescheduling outdoor sports, activities, and events. Environment Canada notes that smoke may cause mild irritation to the eyes, nose, and throat, and may lead to headaches or a mild cough as well as wheezing, chest pains, or severe cough.

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#12451323

7 June 2025

Haze from wildfire smoke is seen in Toronto, Ontario, Canada, on June 06, 2025. Toronto's air quality ranks among the worst in the world today as smoke from wildfires burning in Manitoba, Saskatchewan, and Alberta drifts into the region. Toronto's air quality is currently the second most polluted major city in the world, according to a ranking by IQAir, a Swiss air quality technology company. This places it below Santiago, Chile, and above Montreal, which is in third place as it also faces wildfire smoke from western provinces. Environment Canada urges residents to limit their time spent outdoors and suggests that people consider reducing or rescheduling outdoor sports, activities, and events. Environment Canada notes that smoke may cause mild irritation to the eyes, nose, and throat, and may lead to headaches or a mild cough as well as wheezing, chest pains, or severe cough.

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#12451324

7 June 2025

Haze from wildfire smoke is seen in Toronto, Ontario, Canada, on June 06, 2025. Toronto's air quality ranks among the worst in the world today as smoke from wildfires burning in Manitoba, Saskatchewan, and Alberta drifts into the region. Toronto's air quality is currently the second most polluted major city in the world, according to a ranking by IQAir, a Swiss air quality technology company. This places it below Santiago, Chile, and above Montreal, which is in third place as it also faces wildfire smoke from western provinces. Environment Canada urges residents to limit their time spent outdoors and suggests that people consider reducing or rescheduling outdoor sports, activities, and events. Environment Canada notes that smoke may cause mild irritation to the eyes, nose, and throat, and may lead to headaches or a mild cough as well as wheezing, chest pains, or severe cough.

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#12451325

7 June 2025

Haze from wildfire smoke is seen in Toronto, Ontario, Canada, on June 06, 2025. Toronto's air quality ranks among the worst in the world today as smoke from wildfires burning in Manitoba, Saskatchewan, and Alberta drifts into the region. Toronto's air quality is currently the second most polluted major city in the world, according to a ranking by IQAir, a Swiss air quality technology company. This places it below Santiago, Chile, and above Montreal, which is in third place as it also faces wildfire smoke from western provinces. Environment Canada urges residents to limit their time spent outdoors and suggests that people consider reducing or rescheduling outdoor sports, activities, and events. Environment Canada notes that smoke may cause mild irritation to the eyes, nose, and throat, and may lead to headaches or a mild cough as well as wheezing, chest pains, or severe cough.

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#12451326

7 June 2025

Haze from wildfire smoke is seen in Toronto, Ontario, Canada, on June 06, 2025. Toronto's air quality ranks among the worst in the world today as smoke from wildfires burning in Manitoba, Saskatchewan, and Alberta drifts into the region. Toronto's air quality is currently the second most polluted major city in the world, according to a ranking by IQAir, a Swiss air quality technology company. This places it below Santiago, Chile, and above Montreal, which is in third place as it also faces wildfire smoke from western provinces. Environment Canada urges residents to limit their time spent outdoors and suggests that people consider reducing or rescheduling outdoor sports, activities, and events. Environment Canada notes that smoke may cause mild irritation to the eyes, nose, and throat, and may lead to headaches or a mild cough as well as wheezing, chest pains, or severe cough.

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#12451328

7 June 2025

Haze from wildfire smoke is seen in Toronto, Ontario, Canada, on June 06, 2025. Toronto's air quality ranks among the worst in the world today as smoke from wildfires burning in Manitoba, Saskatchewan, and Alberta drifts into the region. Toronto's air quality is currently the second most polluted major city in the world, according to a ranking by IQAir, a Swiss air quality technology company. This places it below Santiago, Chile, and above Montreal, which is in third place as it also faces wildfire smoke from western provinces. Environment Canada urges residents to limit their time spent outdoors and suggests that people consider reducing or rescheduling outdoor sports, activities, and events. Environment Canada notes that smoke may cause mild irritation to the eyes, nose, and throat, and may lead to headaches or a mild cough as well as wheezing, chest pains, or severe cough.

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