"winter hazard"

#12998343

17 November 2025

People walk through slush on a street following a winter storm in Montreal, Quebec, Canada, on November 16, 2025.

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#12871970

17 October 2025

A portion of Kathmandu, Nepal, is covered by a thin layer of smog that shrouds the atmosphere of the bowl-shaped Kathmandu Valley on October 17, 2025, with the Air Quality Index measuring above 100. The average readings of Kathmandu's pollution exceed the annual average concentrations of PM2.5 of 5 ug/m3, while 24-hour average exposures should not exceed 15 ug/m3 more than 3-4 days per year, as prescribed by the World Health Organization. PM2.5 refers to particulate matter (solid or liquid droplets) in the air less than 2.5 micrometres in diameter. It is among the most dangerous pollutants that can get past the nose and throat to penetrate the lungs and even the bloodstream. PM2.5 particles are small and are also likely to stay suspended in the air for long, increasing the chances of people inhaling them. According to Nepal's Environmental Protection Agency's air quality index, an air quality reading of 151-200 is considered unhealthy, causing everyone to experience problems and sensitive groups to feel more severe effects. When air quality reaches 201-300, it is considered a very unhealthy level, and health risks increase for everyone in the area. When it crosses 300, it becomes hazardous, meaning that the air is of extremely poor quality and poses serious health risks to everyone.

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#12871973

17 October 2025

Smoke billows from a residential area in Kathmandu, Nepal, on October 17, 2025, as a thin layer of smog shrouds the atmosphere of the bowl-shaped valley, with the Air Quality Index measuring above 100. The average readings of Kathmandu's pollution exceed annual average concentrations of PM2.5 of 5 ug/m3, while 24-hour average exposures should not exceed 15 ug/m3 more than 3-4 days per year, as prescribed by the World Health Organization. PM2.5 refers to particulate matter (solid or liquid droplets) in the air less than 2.5 micrometres in diameter. It is among the most dangerous pollutants that can get past the nose and throat to penetrate the lungs and even the bloodstream. PM2.5 particles are small and are also likely to stay suspended in the air for long, increasing the chances of people inhaling them. According to Nepal's Environmental Protection Agency's air quality index, an air quality reading of 151-200 is considered unhealthy, causing everyone to experience problems and sensitive groups to feel more severe effects. When air quality reaches 201-300, it is considered a very unhealthy level, and health risks increase for everyone in the area. When it crosses 300, it becomes hazardous, meaning that the air is of extremely poor quality and poses serious health risks to everyone.

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#12871974

17 October 2025

Smoke billows from a residential area in Kathmandu, Nepal, on October 17, 2025, as a thin layer of smog shrouds the atmosphere of the bowl-shaped valley, with the Air Quality Index measuring above 100. The average readings of Kathmandu's pollution exceed annual average concentrations of PM2.5 of 5 ug/m3, while 24-hour average exposures should not exceed 15 ug/m3 more than 3 to 4 days per year, as prescribed by the World Health Organization. PM2.5 refers to particulate matter (solid or liquid droplets) in the air less than 2.5 micrometres in diameter. It is among the most dangerous pollutants that can get past the nose and throat to penetrate the lungs and even the bloodstream. PM2.5 particles are small and are also likely to stay suspended in the air for long, increasing the chances of people inhaling them. According to Nepal's Environmental Protection Agency's air quality index, an air quality reading of 151-200 is considered unhealthy, causing everyone to experience problems and sensitive groups to feel more severe effects. When air quality reaches 201-300, it is considered a very unhealthy level, and health risks increase for everyone in the area. When it crosses 300, it becomes hazardous, meaning that the air is of extremely poor quality and poses serious health risks to everyone.

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#12871975

17 October 2025

A portion of Kathmandu, Nepal, is covered by a thin layer of smog that shrouds the atmosphere of the bowl-shaped Kathmandu Valley on October 17, 2025, with the Air Quality Index measuring above 100. The average readings of Kathmandu's pollution exceed the annual average concentrations of PM2.5 of 5 ug/m3, while 24-hour average exposures should not exceed 15 ug/m3 more than 3-4 days per year, as prescribed by the World Health Organization. PM2.5 refers to particulate matter (solid or liquid droplets) in the air less than 2.5 micrometres in diameter. It is among the most dangerous pollutants that can get past the nose and throat to penetrate the lungs and even the bloodstream. PM2.5 particles are small and are also likely to stay suspended in the air for long, increasing the chances of people inhaling them. According to Nepal's Environmental Protection Agency's air quality index, an air quality reading of 151-200 is considered unhealthy, causing everyone to experience problems and sensitive groups to feel more severe effects. When air quality reaches 201-300, it is considered a very unhealthy level, and health risks increase for everyone in the area. When it crosses 300, it becomes hazardous, meaning that the air is of extremely poor quality and poses serious health risks to everyone.

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#12295876

23 April 2025

A school kid returns from school wearing a cap for protection from the scorching sun on a hot summer day in Kirtipur, Kathmandu, Nepal, on April 23, 2025.

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#12295877

23 April 2025

A pedestrian uses an umbrella for protection from the scorching sun on a hot summer day in Kirtipur, Kathmandu, Nepal, on April 23, 2025.

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#12295885

23 April 2025

A pedestrian uses an umbrella for protection from the scorching sun on a hot summer day in Kirtipur, Kathmandu, Nepal, on April 23, 2025.

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#12238851

7 April 2025

An aerial view shows an avalanche on Gran Sasso d'Italia National Park, near Fonte Cerreto (L'Aquila) on April 7th, 2025. Heavy snowfall followed by sunny days with mild temperatures increases the risk of avalanches, prompting authorities to issue an avalanche warning to prevent tragedies in the mountains. Precisely due to the avalanche risk, the road had been closed to traffic as a precaution.

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#12222319

3 April 2025

A pedestrian walks near the transit terminal as heavy snow falls in Brampton, Ontario, on April 2, 2025. Environment Canada says most of the Greater Toronto Area is under freezing rain and rainfall warnings on Wednesday.

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#12222320

3 April 2025

A pedestrian walks near the transit terminal as heavy snow falls in Brampton, Ontario, on April 2, 2025. Environment Canada says most of the Greater Toronto Area is under freezing rain and rainfall warnings on Wednesday.

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#12222321

3 April 2025

A pedestrian walks near the transit terminal as heavy snow falls in Brampton, Ontario, on April 2, 2025. Environment Canada says most of the Greater Toronto Area is under freezing rain and rainfall warnings on Wednesday.

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#12221674

2 April 2025

A layer of toxic smog covers the Nepali capital, Kathmandu, as the Air Quality Index (AQI) remains low following the absence of winter rain in the Himalayan nation on April 2, 2025.

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#12210954

30 March 2025

Rain freezes on a tree branch and forms icicles in Brampton, Ontario, on March 30, 2025. Environment Canada issues a freezing rain warning for most of Ontario on Saturday, and tens of thousands of residents are without electricity due to frozen tree limbs falling and severing power lines.

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#12210955

30 March 2025

Rain freezes on a tree branch and forms icicles in Brampton, Ontario, on March 30, 2025. Environment Canada issues a freezing rain warning for most of Ontario on Saturday, and tens of thousands of residents are without electricity due to frozen tree limbs falling and severing power lines.

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#12210956

30 March 2025

Rain freezes on a tree branch and forms icicles in Brampton, Ontario, on March 30, 2025. Environment Canada issues a freezing rain warning for most of Ontario on Saturday, and tens of thousands of residents are without electricity due to frozen tree limbs falling and severing power lines.

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