Acid Precipitation Project | Plant Biology | SIU

Acid Precipitation Project

Chautauqua Site, Carbondale, Illinois

Collection Technique

• polyurethane (or lab quality plastic) containers are used as a rain gauge in the field
• rain depth measured with a ruler or graduated container at weekly intervals
• water collected from the container and transported to lab
• rain gauge container reset in field after rinse with distilled water
• pH tested with a meter within two hours of collection
• water should be at room temperature to measure pH

The Data

Date........................Precipitation (mm)........pH
September 22, 1997..............87.0..................6.0
September 29, 1997..............12.0..................6.0
October 6, 1997..................0.0..................---
October 10, 1997................21.2..................6.1
October 20, 1997.................6.8..................6.8
October 27, 1997................35.7..................6.1
November 3, 1997................29.0..................5.6
November 10, 1997...............20.0..................6.3
November 17, 1997...............16.4..................5.9
November 24, 1997................3.6..................5.9
December 1, 1997................24.4..................5.8
December 8, 1997.................8.0..................6.2
December 12, 1997................0.0..................---
December 15, 1997................6.0..................6.4
December 29, 1997...............19.8..................6.0
January 1, 1998.................23.0..................5.9
January 12, 1998................40.5..................6.1
January 19, 1998.................9.4..................6.3
January 27, 1998................11.2..................6.1
February 3, 1998.................0.0..................---
February 10, 1998................1.4..................6.5
February 17, 1998...............62.0..................5.7
February 24, 1998................4.2..................5.9
March 3, 1998...................27.2..................6.2
March 10, 1998..................13.0..................6.0
March 17, 1998..................18.6..................6.0
March 24, 1998..................67.0................. 5.8
March 31, 1998..................35.0..................6.8
April 7, 1998...................13.8..................7.1
April 14, 1998..................16.0..................5.4
April 21, 1998..................52.0..................7.5
April 28, 1998..................61.1..................7.1
May 5, 1998.....................36.0..................7.1
May 12, 1998....................16.6..................7.0
May 19, 1998.....................0.0..................---
May 26, 1998....................47.0..................7.2
June 2, 1998.....................1.0..................---
June 9, 1998....................27.2..................6.1
June 15, 1998...................67.2..................6.4
June 22, 1998...................35.2..................6.0
June 29, 1998....................0.0..................---
July 6, 1998...................108.8..................7.0
July 13, 1998...................15.6..................6.6
July 20, 1998....................1.6..................---
July 27, 1998...................27.4..................6.8
August 3, 1998..................22.8..................6.2
August 10, 1998.................54.2..................6.4
August 17, 1998..................0.6..................---
August 24, 1998..................0.0..................---
August 31, 1998..................0.0..................---
September 7, 1998................0.0..................---
September 14, 1998...............0.0..................---
September 21, 1998..............25.4..................6.3
September 28, 1998...............6.0..................6.1
October 5, 1998..................0.0..................---
October 12, 1998................57.6..................6.6
October 19, 1998................30.0..................6.7
October 26, 1998.................0.0..................---
November 2, 1998.................3.2..................---
November 9, 1998.................9.0..................6.0
November 16, 1998...............19.4..................6.6
November 23, 1998...............16.2..................6.9
November 30, 1998................3.6..................6.7
December 7, 1998................27.8..................6.8
December 14, 1998................7.6..................6.3
December 23, 1998...............42.7..................6.4
December 28, 1998................8.8..................5.9
January 6, 1999.................38.1..................5.5
January 11, 1999.................6.0..................6.4
January 18, 1999................19.6..................6.0
January 25, 1999................94.9..................6.6
February 1, 1999................33.7..................7.0
February 8, 1999................35.8..................7.0
February 15, 1999...............12.0..................6.4
February 22, 1999................3.9..................6.2
March 1, 1999...................22.4..................6.0
March 8, 1999...................20.8..................6.1
March 16, 1999..................27.5..................5.6
March 22, 1999...................0.0..................---
March 29, 1999...................7.4..................5.6
April 5, 1999...................66.0..................6.1
April 13, 1999..................39.7..................6.2
April 19, 1999..................34.4..................6.5
April 26, 1999..................26.1..................6.0
May 5, 1999.....................66.0..................5.8
May 10, 1999....................34.8..................5.9
May 17, 1999....................24.0..................6.0
May 24, 1999.....................9.4..................7.0
June 1, 1999.....................6.4..................6.7
June 7, 1999....................47.6..................7.0
June 14, 1999...................27.2..................6.9
June 21, 1999....................5.8..................7.0
June 28, 1999...................32.4..................6.1
July 6, 1999.....................9.0..................6.5
July 12, 1999...................35.2..................6.7
July 19, 1999....................5.8..................6.8
July 26, 1999....................0.0..................---
August 1, 1999...................0.6..................---
August 9, 1999...................1.0..................---
August 16, 1999..................1.2..................6.9
August 23, 1999..................0.0..................---
September 1, 1999................0.0..................---
September 8, 1999................0.0..................---
September 15, 1999...............2.3..................6.9
September 23, 1999...............3.1..................7.0
October 1, 1999.................11.8..................5.9
October 6, 1999..................0.0..................---
October 13, 1999................81.2..................5.2
October 20, 1999.................0.0..................---
October 27, 1999.................0.0..................---
November 3, 1999.................4.6..................5.8
November 10, 1999................0.0..................---
November 17, 1999................0.0..................---
November 23, 1999................5.0..................7.1
December 1, 1999.................3.4..................6.2
December 8, 1999................23.4..................4.9
December 15, 1999..............102.8..................4.7
December 22, 1999................0.6..................---
December 29, 1999................0.0..................---
January 6, 2000.................57.2..................7.2
January 12, 2000.................0.2..................---
January 19, 2000.................4.0..................6.8
January 26, 2000.................2.4..................6.9
February 2, 2000.................2.2..................6.8
February 9, 2000.................0.0..................---
February 16, 2000...............33.7..................6.7
February 23, 2000...............47.6..................6.4
March 1, 2000...................48.7..................6.5
March 8, 2000....................6.8..................6.5
March 14, 2000..................16.4..................6.2
March 21, 2000..................45.0..................6.0
March 29, 2000...................8.4..................6.7
April 5, 2000....................2.0..................6.9
April 12, 2000..................22.2..................6.8
April 19, 2000..................14.7..................7.2
April 26, 2000..................18.2..................7.1
May 3, 2000.....................18.2..................6.8
May 11, 2000....................19.6..................7.2
May 18, 2000.....................5.8..................8.2
May 24, 2000....................77.8..................7.7
May 31, 2000....................36.4..................8.5
June 7, 2000.....................4.6..................7.2
June 14, 2000...................14.2..................6.8
June 21, 2000..................257.0..................7.0
June 28, 2000...................40.2..................6.6
July 5, 2000.....................3.7..................7.3
July 12, 2000....................7.8..................7.1
July 19, 2000...................28.6..................6.5
July 26, 2000....................0.4..................---
August 3, 2000..................33.1..................6.6
August 10, 2000.................35.4..................5.7
August 17, 2000..................0.2..................---
August 23, 2000.................25.2..................5.1
August 31, 2000.................22.5..................4.6
September 6, 2000................0.0..................---
September 14, 2000..............11.0..................6.0
September 21, 2000...............7.6..................5.5
September 27, 2000..............35.6..................4.7
October 4, 2000..................0.0..................---
October 11, 2000.................5.8..................6.4
October 18, 2000................26.0..................6.6
October 25, 2000.................1.8..................6.0
November 1, 2000.................2.0..................6.3
November 8, 2000................35.8..................6.3
November 13, 2000...............40.0..................5.3
November 19, 2000................0.5..................---
November 27, 2000...............39.2..................5.3
December 3, 2000.................4.2..................5.3
December 12, 2000...............43.2..................4.0
December 21, 2000...............40.1..................4.7
December 27, 2000................1.7..................5.9
January 3, 2001..................0.4..................---
January 10, 2001.................0.0..................---
January 15, 2001.................4.3..................5.7
January 22, 2001.................0.5..................---
January 29, 2001.................2.4..................6.4
February 5, 2001................20.0..................5.7
February 15, 2001...............45.0..................5.6
February 19, 2001................5.3..................4.6
February 27, 2001...............32.8..................4.4
March 5, 2001...................10.1..................4.2
March 12, 2001...................3.6..................5.1
March 18, 2001..................14.1..................4.4
March 30, 2001..................16.6..................5.4
April 8, 2001...................42.6..................4.6
April 19, 2001..................11.9..................7.3
April 25, 2001...................5.2..................6.6
May 2, 2001......................0.2..................---
May 11, 2001....................13.9..................7.7
May 15, 2001.....................0.0..................---
May 23, 2001...................131.5..................7.4
May 29, 2001.....................7.0..................5.4
June 6, 2001....................30.0..................4.7
July 6, 2001...................100.6..................4.3
July 13, 2001....................8.0..................4.6
July 20, 2001...................28.2..................4.3
July 27, 2001...................24.6..................4.3
August 3, 2001..................14.4..................4.5
August 10, 2001.................25.4..................4.2
August 17, 2001.................13.9..................4.1
August 24, 2001.................31.2..................6.3
September 2, 2001..............130.4..................4.4 
September 6, 2001................0.8...................---
September 14, 2001..............20.6..................5.1
September 21, 2001..............15.6..................4.2
September 28, 2001...............3.0..................4.6
October 6, 2001.................16.8..................5.0
October 12, 2001................58.0..................5.1
October 20, 2001................81.8..................4.9
October 26, 2001................43.0..................5.8
November 2 2001..................1.0..................6.9
November 9 2001..................1.0..................6.1
November 17, 2001................0.6...................---
November 23, 2001................6.6..................6.9
December 1, 2001................87.2..................6.6
December 8, 2001................15.2..................5.5
December 16, 2001..............142.0..................5.4
December 23, 2001................5.4..................5.2
December 28, 2001................0.1..................---
January 05, 2002.................0.0..................---
January 13, 2002.................8.4..................7.3
January 19, 2002.................1.2..................7.0
January 25, 2002................27.6..................5.7
February 01, 2002...............58.6..................5.4
February 07, 2002................1.4..................6.4
February 15, 2002................0.0..................---
February 22, 2002...............28.4..................6.3
March 01,2002....................6.4..................4.9
March 09,2002...................53.2..................5.7
March 15,2002....................7.4..................5.2
March 22,2002...................66.0..................4.6
March 30,2002...................51.0..................4.5
April 06,2002....................3.8..................4.1
April 14,2002...................83.8..................7.2
April 21,2002...................22.4..................7.4
April 28,2002...................46.8..................5.2
May 5, 2002.....................21.0..................5.2
May 12, 2002...................162.8..................5.6
May 19, 2002....................43.0..................5.5
May 26, 2002.....................0.8..................5.8
June 01,2002.....................4.8..................5.5
June 10,2002....................44.4..................4.8
June 16,2002.....................4.2..................4.5
June 23,2002.....................0.0..................---
June 30,2002....................28.2..................5.5
July 07,2002.....................0.0..................---
July 14,2002....................15.6..................7.6
July 21,2002.....................8.4..................6.6
July 27,2002.....................0.0..................---
August 04,2002...................4.2..................6.6
August 11,2002..................24.6..................6.1
August 18,2002...................5.0..................5.0
August 24,2002...................9.2..................6.5
September 01,2002................0.0..................---
September 08,2002................0.0..................---
September 15,2002................0.0..................---
September 22,2002...............62.2..................---
September 30,2002...............12.2..................7.2
October 07,2002.................12.0..................6.4
October 17,2002.................14.0..................6.9
October 23,2002..................8.6..................6.4
October 30,2002.................75.0..................6.5
November 12,2002................46.2..................6.6
November 20,2002................10.6..................6.1
December 07,2002.................6.0..................6.1
December 14,2002................19.8..................5.0

Comments and questions: dgibson@plant.siu.edu 
Department of Plant Biology e-mail: plant-biology@plant.siu.edu 
Comments and questions related to web server: webmaster@science.siu.edu