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Whatever happened to acid rain?
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cancer boy
cancer boy
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Re: Whatever happened to acid rain?
Aug 01, 2006, 12:35
Sulphur dioxide emissions in western Europe have gone down by over 70% since 1970, and nitogen oxide emissions have dropped by over a third across the same period. The main reasons are the replacement of coal generation by nuclear and gas generation, less use of oil and solid fuel for domestic heating, replacement of waste incinerators by more modern designs and landfill, and as caramelsauce observed use of flues to reduce harmful emissions from the remaining large coal power stations such as Drax.

Rain is slightly acidic naturally (pH typically between 5.0 and 6.0) but there's a lot less that falls into the "tastes nice on chips" category these days. This means it's a not really a problem for the UK and Scandinavia now, and many of the areas that were badly affected in the past are starting to recover.

The north-eastern states of the US still have a big problem with it though, as this pH map illustrates:

http://pubs.usgs.gov/gip/acidrain/2.html
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