climate_presentation

climate_presentation - A c i d Rain Chemistry Effects on a...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: A c i d Rain Chemistry Effects on a Local Ecosystem Causes and Effects Possible Solutions and Costs What is Acid Rain? Atmospheric pollutant concentrations sharply increased with the progression of the Industrial Revolution Originally observed by Robert Angus Smith in Manchester in 1852 Neglected until late 1960s in the United States with the official term acid rain coming along in 1972 Became a topic of popular interest after NY Times article about Hubbard Brook Experimental Forrest in New Hampshire The Hubbard Brook Experimental Forrest Outdoor ecological laboratory in White Mountains of New Hampshire Established in 1955 by United States Forrest Service Initially intended to study relationship between forest land coverage and water quality and supply Introduction and Movement of fauna is monitored at all times to more accurately interpret results of variables introduced HBEF Research Dartmouth professors propose that land set aside for watershed studies be used for closed-system ecological experiments 31km2 of bowl-shaped, hilly terrain that ranges in altitude from 222-1,015m 9 individual watersheds all draining into Hubbard Brook and empty into Pemigewasset River Extensive research of the presence and effects of acid rain published in 1968 About Acid Rain More accurately acid deposition refers Wet Deposits---> rain, snow, sleet and fog Dry Deposits---> acidifying particles and gases Normal acidity for rainwater is considered to be 5.6pH or higher pH, which represents the H+ concentration of a solution has been measured as low as 2.4 in certain industrialized areas Perspective pH Levels Chemistry of Acid Rain Rain is naturally acidic due to the formation of carbonic acid CO2(gas) + H2O(liq) ---> H2CO3(aq) Two major acids contributing to abnormally acidic conditions are sulfuric and nitric acid SO2(gas) + H2O(liq) ---> H2SO3(aq) 2NO2(gas) + 2H2O(liq) ---> HNO2(aq) + HNO3(aq) Natural Sources of SO2 Volcanic Eruptions Forest Fires Plant Decomposition Oxidation of sulfur gases Natural Sources of...
View Full Document

This note was uploaded on 11/10/2011 for the course GEOL 456 taught by Professor Mckinney during the Fall '10 term at University of Tennessee.

Page1 / 35

climate_presentation - A c i d Rain Chemistry Effects on a...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online