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Oct. 12th, 2004 06:19 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
theweaselkingA global map of nitrogen dioxide in the atmosphere has revealed the most precise view yet of pollution hotspots around the world.
The map, based on 18 months’ worth of satellite data, shows very high levels of NO2 above major European and North American cities and across much of north-east China. South-east Asia and Africa also have raised concentrations of the gas due to their burning of vegetation.
But perhaps more surprising are the oceans. "Ship tracks are visible in some locations," says Steffen Beirle, one of the research team at the University of Heidelberg, Germany. "Look at the Red Sea and the Indian Ocean between the southern tip of India and Indonesia."
The map, based on 18 months’ worth of satellite data, shows very high levels of NO2 above major European and North American cities and across much of north-east China. South-east Asia and Africa also have raised concentrations of the gas due to their burning of vegetation.
But perhaps more surprising are the oceans. "Ship tracks are visible in some locations," says Steffen Beirle, one of the research team at the University of Heidelberg, Germany. "Look at the Red Sea and the Indian Ocean between the southern tip of India and Indonesia."
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Date: 2004-10-12 06:43 pm (UTC)(no subject)
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