Measuring alkalinity determins a stream's ability to neutralize acidic pollution from rainfall or wastewater. Alkalinity refers to the ability of water to resist change in pH. The graphic shows global comparison of alkalinity measured in milligrams per litre, for the years 1976 and 2000.
Using this item and referring to it is encouraged, and please use
it in presentations, web pages, newspapers, blogs and reports.
For any form of publication, please include the link to this
page and give the creator credit
(in this case Philippe Rekacewicz, UNEP/GRID-Arendal)
If the high-resolution file is not available, please contact
email@example.com for request and
permission for usage.