Photochemical air pollution over Vancouver, Canada
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Photochemical air pollution over Vancouver, Canada
Air pollution over Vancouver. View of the city of Vancouver, Canada, showing photochemical air pollution (smog). The pollution results from hydrocarbons and oxides of nitrogen, mainly from motor vehicles exhausts, reacting together in the presence of sunlight. Here, the pollution has been trapped by an inversion layer, a very stable atmospheric condition in which air temperature increases with altitude. The hazy smog limits visibility, damages plants and irritates the eyes. High levels of smog pose a very serious health hazard, especially to the very young and old, and those with existing respiratory complaints. For Vancouver on a clear day see image E780/739
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6368369
© KAJ R. SVENSSON/SCIENCE PHOTO LIBRARY
Air Pollution Atmospheric City Environmental Pollution Smog Vancouver Inversion
EDITORS COMMENTS
This print captures the alarming reality of photochemical air pollution hanging over the beautiful city of Vancouver, Canada. The smog-filled skyline is a result of hydrocarbons and oxides of nitrogen, primarily emitted by motor vehicle exhausts, reacting with sunlight. Unfortunately, this pollution has been trapped by an inversion layer, which creates a stable atmospheric condition where temperature increases with altitude. The hazy smog not only limits visibility but also wreaks havoc on both plants and human health. It irritates the eyes and poses a serious health hazard to vulnerable populations such as the very young, old, and those already suffering from respiratory ailments. This image serves as a stark reminder that we must take immediate action to combat air pollution for the sake of our environment and well-being. Vancouver's clear skies are often celebrated for their breathtaking beauty; however, this photograph sheds light on the darker side of urban development. As we witness this scene unfold before us, it becomes evident that urgent measures need to be taken to reduce emissions from vehicles and other sources in order to preserve both our natural surroundings and public health. Science Photo Library brings attention to these pressing environmental concerns through thought-provoking imagery like this one. By capturing moments like these in photographs, they inspire us all to reflect upon our impact on Earth's delicate balance while encouraging positive change towards cleaner air for future generations.
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