"Quality"

#13229427

22 January 2026

KRAKOW, POLAND – JANUARY 20: A view of Krakow from Krakus Mound as the city experiences 'Very Unhealthy' air pollution levels (AQI over 200), ranking it among the world’s most polluted cities on January 20, 2026, in Krakow, Poland.

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#13229429

22 January 2026

KRAKOW, POLAND – JANUARY 20: A view of Krakow from Krakus Mound as the city experiences 'Very Unhealthy' air pollution levels (AQI over 200), ranking it among the world’s most polluted cities on January 20, 2026, in Krakow, Poland.

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#13229278

22 January 2026

View of Wawel Castle and the city covered in smog in Krakow, Poland, on January 19, 2026.

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#13228871

22 January 2026

KRAKOW, POLAND – JANUARY 22: An information board displays very high PM10 air pollution levels, showing a reading of 144, in the center of Krakow, Poland, on January 22, 2026. A thick layer of smog persisted throughout the day as air quality indicators reached 'Very Unhealthy' levels, varying by location across the city, with some areas recording AQI readings above 190 and other monitoring stations reporting values between 150 and over 200, ranking Krakow again among the world’s most polluted cities on the date.

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#13228879

22 January 2026

KRAKOW, POLAND – JANUARY 22: An information board displays very high PM10 air pollution levels, showing a reading of 144, in the center of Krakow, Poland, on January 22, 2026. A thick layer of smog persisted throughout the day as air quality indicators reached 'Very Unhealthy' levels, varying by location across the city, with some areas recording AQI readings above 190 and other monitoring stations reporting values between 150 and over 200, ranking Krakow again among the world’s most polluted cities on the date.

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#13228888

22 January 2026

KRAKOW, POLAND – JANUARY 22: An information board displays very high PM10 air pollution levels, showing a reading of 144, in the center of Krakow, Poland, on January 22, 2026. A thick layer of smog persisted throughout the day as air quality indicators reached 'Very Unhealthy' levels, varying by location across the city, with some areas recording AQI readings above 190 and other monitoring stations reporting values between 150 and over 200, ranking Krakow again among the world’s most polluted cities on the date.

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#13226704

22 January 2026

Fog covers the sky of Cairo on the Nile Corniche in the capital, downtown Egypt, on January 22, 2026, in Cairo, Egypt.

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#13226705

22 January 2026

Fog covers the sky of Cairo on the Nile Corniche in the capital, downtown Egypt, on January 22, 2026, in Cairo, Egypt.

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#13226706

22 January 2026

Fog covers the sky of Cairo on the Nile Corniche in the capital, downtown Egypt, on January 22, 2026, in Cairo, Egypt.

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#13226707

22 January 2026

Fog covers the sky of Cairo on the Nile Corniche in the capital, downtown Egypt, on January 22, 2026, in Cairo, Egypt.

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#13226708

22 January 2026

Fog covers the sky of Cairo on the Nile Corniche in the capital, downtown Egypt, on January 22, 2026, in Cairo, Egypt.

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#13226709

22 January 2026

Fog covers the sky of Cairo on the Nile Corniche in the capital, downtown Egypt, on January 22, 2026, in Cairo, Egypt.

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#13226710

22 January 2026

Fog covers the sky of Cairo on the Nile Corniche in the capital, downtown Egypt, on January 22, 2026, in Cairo, Egypt.

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#13226711

22 January 2026

Fog covers the sky of Cairo on the Nile Corniche in the capital, downtown Egypt, on January 22, 2026, in Cairo, Egypt.

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#13226712

22 January 2026

Fog covers the sky of Cairo on the Nile Corniche in the capital, downtown Egypt, on January 22, 2026, in Cairo, Egypt.

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#13226713

22 January 2026

Fog covers the sky of Cairo on the Nile Corniche in the capital, downtown Egypt, on January 22, 2026, in Cairo, Egypt.

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