The degree of humification of SOM decreased slightly from the summit to lakeshore, and the relatively low degree of humification was due to high precipitation and acidity (Chung et al. 2012).
Acid sulfate components, along with nitric acid, may increase the problem of acidity in precipitation on soils, vegetation, and lakes in certain areas of the eastern United States.
We know that the disease produces a complex syndrome of symptoms involving change in many planetary systems (temperature, precipitation, sea level and acidity balance, ecological regimes, etc).
Increases in the acidity of precipitation in industrialized regions have led to concern over increased H + input to aquatic and terrestrial ecosystems.
Recent increases in the H+ ion content of precipitation have caused increased acidities of freshwater lakes in Scandinavia and eastern North America, which have depleted biota, including fish populations.
Precipitation samples of extremely high acidity were identified - about 5% of samples collected during 12 months showed the acidity below pH = 3 and the lowest recorded pH was 1.4.
During the measurement period the value of pH characterizing the background acidity of the precipitation was about 6.
The U.S. Environmental Protection Agency EPAA) has released the third edition of a report, 'Climate Change Indicators in the United States.' The report pulls together observed data on key measures of our environment, including U.S. and global temperature and precipitation, ocean heat and ocean acidity, sea level, length of growing season, and many others.
The high acidity of carboxylic acid binding groups in the dyes can lead to the dissolution of ZnO and precipitation of dye-Zn2+ complexes.
In California, there have been reports of precipitation falling in Los Angeles and San Jose with roughly 10 times the acidity of normal rain.
