Avoid Morning Walks in Winter, Experts Advise

December 25, 2024
morning-walk

If you have a habit of going for early morning walks, it might be time to reconsider during winter. Experts warn that stepping out during the early hours in cold weather can harm your health due to increased air pollution at dawn.

Pollution Peaks in Winter Mornings

Compared to summer, winter mornings are more polluted. Before sunrise, cold air traps dust, smoke, and harmful particles closer to the ground, creating unhealthy air conditions. Environmentalist Bhushan Tuladhar explains that during winter, the ground cools quickly at night, and the cold air remains near the surface, preventing pollutants from dispersing. “It’s better to step out after sunrise when the warmer air helps reduce ground-level pollution,” he advises.

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Kathmandu Faces Severe Pollution

In places like Kathmandu Valley, pollution levels are exacerbated because the air circulation is restricted. Burning waste, cooking with firewood, and using coal or gas for heating during winter contribute significantly to air pollution. According to Tuladhar, traditional fuel use is still prevalent in rural areas, with 51% of households using firewood and 3% relying on dung for cooking, as per the 2021 census. He adds that air pollution is responsible for 48,500 annual deaths in Nepal, as revealed by recent studies.

Vehicle emissions also worsen during winter due to reduced fuel efficiency, releasing higher levels of carbon monoxide and nitrogen oxides. Additionally, burning biomass, such as straw and plastics for heating, increases harmful particles in the air. Tuladhar notes that brick kilns, coal-based industries, and cement factories remain active during winter, further intensifying pollution levels.

morning walk kathmandu

Impact on Vulnerable Groups

Winter pollution is particularly dangerous for heart patients and individuals with chronic conditions like high blood pressure, diabetes, and asthma. Cardiologist Dr. Ranjit Sharma warns that early-morning pollution can significantly affect such individuals. “Pollution is harmful at any time, but it’s especially severe in the morning. Heart patients should avoid outdoor activities before sunrise,” he advises.

Dr. Sharma explains that cold weather increases hormone levels, thickens blood, and narrows blood vessels, raising the risk of heart attacks and strokes. He recommends wearing warm clothing, using masks, and stepping out only after the sun is up.

Solutions for Cleaner Air

Addressing winter pollution requires reducing emissions from vehicles and industries, says climate expert Manjit Dhakal. Managing vehicular emissions could help mitigate carbon output, a significant factor in climate change. Environmental activist Barsha Parajuli adds that fog and colder temperatures during winter keep pollutants closer to the ground, making mornings the most hazardous time for outdoor activities.

For a healthier winter, experts suggest adapting your schedule to avoid exposure to polluted air and taking preventive measures to stay safe.

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