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Reference Waterbase - Monitoring stations for rivers and lakes: Water quality monitoring stations in rivers and lakes
Located in Data and maps › Maps and graphs
Reference Waterbase - Monitoring stations for rivers and lakes: Water quality monitoring stations in rivers and lakes
Located in Data and maps › Maps and graphs
Marine and coastal environment - key fact 5: The current reduction of 0.1 in pH that has occurred over the industrial era translates to a 30 % increase in ocean acidity. This change has occurred at a rate that is about a hundred times faster than any change in acidity experienced during the past 55 million of years. A further decline of 0.3-0.4 pH units, projected for surface waters during the 21st century, represents a 100-150 % increase in acidity.
Located in The European environment – state and outlook 2010 › … › Marine and coastal environment — SOER 2010 thematic assessment › Key facts
Ocean acidification (CLIM 043) - Assessment published Nov 2012: Surface-ocean pH has declined from 8.2 to 8.1 over the industrial era due to the growth of atmospheric CO 2 concentrations. This decline corresponds to a 30 % change in oceanic acidity. Observed reductions in surface-water pH are nearly identical across the global ocean and throughout Europe’s seas. Ocean acidification in recent decades is occurring a hundred times faster than during past natural events over the last 55 million years. Ocean acidification already reaches into the deep ocean, particularly in the high latitudes. Average surface-water pH is projected to decline further to 7.7 or 7.8 by the year 2100, depending on future CO 2 emissions. This decline represents a 100 to 150 % increase in acidity. Ocean acidification may affect many marine organisms within the next 20 years and could alter marine ecosystems and fisheries.
Located in Data and maps › Indicators › Ocean acidification
Decline in pH measured at the Aloha station as part of the Hawaii Ocean time-series: Aloha station pH time series. Changes here are similar to those that are observed at a much shorter time scale in Europe.
Located in Data and maps › Maps and graphs