"smog warning."

#13224947

21 January 2026

An interactive board displaying PM10 dust level is seen in Krakow, Poland on January 21, 2026. For the second day an alert has been issued by the city authorities due to excessive PM10 levels and low air quality.

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#13224948

21 January 2026

An interactive board displaying PM10 dust level is seen in Krakow, Poland on January 21, 2026. For the second day an alert has been issued by the city authorities due to excessive PM10 levels and low air quality.

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#13147306

1 January 2026

A road sign informs about the Clean Transport Zone, SCT or Strefa Czystego Transportu, in Krakow, Poland. A ban on older cars from city streets to reduce pollution comes into force in Krakow, Poland, on January 1, 2026.

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#13147307

1 January 2026

A road sign informs about the Clean Transport Zone, SCT or Strefa Czystego Transportu, in Krakow, Poland. A ban on older cars from city streets to reduce pollution comes into force in Krakow, Poland, on January 1, 2026.

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#13147308

1 January 2026

A road sign informs about the Clean Transport Zone, SCT or Strefa Czystego Transportu, in Krakow, Poland. A ban on older cars from city streets to reduce pollution comes into force in Krakow, Poland, on January 1, 2026.

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#13147309

1 January 2026

A road sign informs about the Clean Transport Zone, SCT or Strefa Czystego Transportu, in Krakow, Poland. A ban on older cars from city streets to reduce pollution comes into force in Krakow, Poland, on January 1, 2026.

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#13113564

20 December 2025

Traffic moves past a layer of dense smog on a winter morning in New Delhi, India, on December 20, 2025.

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#13113565

20 December 2025

Traffic moves past a layer of dense smog on a winter morning in New Delhi, India, on December 20, 2025.

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#13113566

20 December 2025

Traffic moves past a layer of dense smog on a winter morning in New Delhi, India, on December 20, 2025.

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#13113567

20 December 2025

Traffic moves past a layer of dense smog on a winter morning in New Delhi, India, on December 20, 2025.

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#13113569

20 December 2025

Traffic moves past a layer of dense smog on a winter morning in New Delhi, India, on December 20, 2025.

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#13113570

20 December 2025

Traffic moves past a layer of dense smog on a winter morning in New Delhi, India, on December 20, 2025.

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#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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