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File:Aerial view of Air Pollution in North India, Agriculture Fires, November 2013.jpg

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When the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite passed over the region on November 12, 2013, numerous such fires were burning. In the image above, red outlines show the approximate locations of active burning. Fields generally appear brown. See the lower image
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The Indian state of Punjab has two growing seasons: one from May to September and another from November to April. In November, farmers in Punjab typically sow crops such as wheat and vegetables. They often set fire to their fields to clear them before planting, a practice known as stubble burning.
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On November 9, 2013, the Times of India reported that smoke was heavy enough in Chandigarh to ground a handful of flights. In addition, engineers from the Indian Institute of Technology recently published a report noting that air pollution posed a threat to the Harmandir Sahib (Golden Temple), an
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A smoke plume extended far to the southeast, obscuring the satellite’s view of cities in Uttar Pradesh such as Lucknow and Kanpur. Smoke from agricultural burning contains numerous substances that can harm human health, including carbon monoxide, nitrogen oxides, and particulate matter.
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Although the smoke appeared to originate primarily from the agricultural fires, other factors such as urban and industrial smog may have contributed. According to a study published in Environmental Pollution, Punjab farmers most often burn stubble from rice plants in November.
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Credits: NASA image courtesy Jeff Schmaltz, LANCE MODIS Rapid Response Team at NASA GSFC. Caption by Adam Voiland.
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Aerial view of Air Pollution in North India, Agriculture Fires, November 2013.jpg
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File:Aerial view of Air Pollution in North India, Agriculture Fires, November 2013.jpg
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