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Data Table
How to Read the Data Table
- The data chart is organized by year, starting with the most recent.
- Ozone injury is reported in code numbers. The numbers are 0-3:
0 = no ozone injury
1 = very little ozone injury (1%-15%)
2 = medium injury (16%-50%)
3 = heavy injury (more than 50%)
- Monarch observations can be eggs, caterpillars, or butterflies.
- The abbreviation "UK" means "unknown."
- The data reported have been corrected where necessary by DNR biomonitoring staff based on samples submitted by the schools.
Spring Harbor School in Madison has been surveying milkweed plants since 1993. To access their data pages, click here (Leaves EEK!).
The Wisconsin DNR, along with the other Lake Michigan states, has developed a series of GIS (Geographic Information Systems) maps to show ozone injury to plants across the region. To see their data, click here (Leaves EEK!).
Milkweed Monitoring Data
|
2009 |
| School Name |
City |
Survey Date |
Total Number of Leaves Collected |
Highest level of Ozone Injury Found |
Average % of Ozone Injured Leaves Per Plant |
Total Number of Monarchs Observed |
| Brookfield Central HS |
Brookfield |
Sept. 2009 |
115 |
3 |
50.8% |
0 |
|
2009 Totals |
1 school |
|
115 |
3 |
50.8% |
0 |
|
2008 |
| School Name |
City |
Survey Date |
Total Number of Leaves Collected |
Highest level of Ozone Injury Found |
Average % of Ozone Injured Leaves Per Plant |
Total Number of Monarchs Observed |
| Brookfield Central High School |
Brookfield |
Sept.10, 2008 |
286 |
2 |
40.2% |
0 |
| Wabeno Elementary School |
Wabeno |
Sept. 25, 2008 |
249 |
1 |
0% |
0 |
|
2008 Totals |
2 schools |
|
535 |
|
- |
0 |
|
2007 |
| School Name |
City |
Survey Date |
Total Number of Leaves Collected |
Highest level of Ozone Injury Found |
Average % of Ozone Injured Leaves Per Plant |
Total Number of Monarchs Observed |
| Whitnall High School |
Greenfield |
Sept.14, 2007 |
10 |
2 |
19.7% |
1 |
|
2007 Totals |
1 school |
|
10 |
2 |
19.7% |
1 |
|
2006 |
| School Name |
City |
Survey Date |
Total Number of Leaves Collected |
Highest level of Ozone Injury Found |
Average % of Ozone Injured Leaves Per Plant |
Total Number of Monarchs Observed |
| South High School |
Sheboygan |
Sept.8, 2006 |
50 |
1 |
2.68% |
0 |
| Urban Middle School |
Sheboygan |
Sept. 20-21, 2006 |
516 |
1 |
76% |
0 |
|
2006 Totals |
2 schools |
|
566 |
|
39.34% |
0 |
|
2005 |
| School Name |
City |
Survey Date |
Total Number of Leaves Collected |
Highest level of Ozone Injury Found |
Average % of Ozone Injured Leaves Per Plant |
Total Number of Monarchs Observed |
| South High School |
Sheboygan |
Sept. 7-8, 2005 |
120 |
3 |
1.8% |
0 |
| Rosholt Middle School |
Rosholt |
October 6, 2005 |
10 |
1 |
4.3% |
0 |
| Urban Middle School |
Sheboygan |
Sept. 19, 2005 |
34 |
3 |
20.4% |
0 |
|
2005 Totals |
3 schools |
|
164 |
|
21.32% |
0 |
|
2004 |
| School Name |
City |
Survey Date |
Total Number of Leaves Collected |
Highest level of Ozone Injury Found |
Average % of Ozone Injured Leaves Per Plant |
Total Number of Monarchs Observed |
| South High School |
Sheboygan |
Sep. 9-10, 2004 |
60 |
1 |
3.2% |
0 |
| Rosholt Middle School |
Rosholt |
Sep. 21, 2004 |
10 |
1 |
1.0% |
0 |
| SPASH |
Stevens Point |
Sep. 20, 2004 |
71 |
3 |
41.7% |
0 |
| Rhinelander High School |
Rhinelander |
Sep. 2004 |
10 |
3 |
39.4% |
0 |
|
2004 Totals |
4 schools |
|
151 |
|
21.32% |
0 |
|
2003 |
| School Name |
City |
Survey Date |
Total Number of Leaves Collected |
Highest level of Ozone Injury Found |
Average % of Ozone Injured Leaves Per Plant |
Total Number of Monarchs Observed |
| South High School |
Sheboygan |
Sep. 3, 2003 |
110 |
3 |
21.5% |
7 |
| Rosholt Middle School |
Rosholt |
Sep. 30, 2003 |
5 |
3 |
39.5% |
0 |
| Whitnall High School |
Greenfield |
Sep. 15, 2003 |
60 |
3 |
51.7% |
7 |
| Rhinelander High School |
Rhinelander |
Sep. 3, 2003 |
20 |
2 |
59.1% |
0 |
|
2003 Totals |
4 schools |
|
195 |
3 |
42.9 |
14 |
|
2002 |
| School Name |
City |
Survey Date |
Total Number of Leaves Collected |
Highest level of Ozone Injury Found |
Average % of Ozone Injured Leaves Per Plant |
Total Number of Monarchs Observed |
| South High School |
Sheboygan |
Sept 6 2001 |
120 |
2 |
12.3% |
1 |
| Amery High School |
Amery |
Sept 12 2001 |
200 |
3 |
9.6% |
3 |
| Rosholt Middle School |
Rosholt |
Sept 13 2001 |
10 |
1 |
1.8% |
0 |
| Whitnall High School |
Greenfield |
Sept 13 2001 |
100 |
3 |
21.3% |
3 |
| Rhinelander High School |
Rhinelander |
Sept 21 2001 |
20 |
2 |
42.8% |
0 |
|
2002 Totals |
5 schools |
|
450 |
Range: 1-3 |
Range: 1.8-42.8% |
7 |
|
2001 |
| School Name |
City |
Survey Date |
Total Number of Leaves Collected |
Highest level of Ozone Injury Found |
Average % of Ozone Injured Leaves Per Plant |
Total Number of Monarchs Observed |
| South High School |
Sheboygan |
Sept 6 2001 |
120 |
2 |
10.8% |
1 |
| Eisenhower High School |
New Berlin |
Sept. 2001
|
70 |
3 |
38.8% |
0 |
| Kettle Moraine High School |
Wales |
Sept 18 2001 |
10 |
2 |
12.8% |
UK |
| Morse Middle School |
Milwaukee |
Sept 18 2001 |
96 |
2 |
11.2% |
3 |
| Amery High School |
Amery |
Sept 13 2001 |
210 |
3 |
9.5% |
4 |
| Rosholt Middle School |
Rosholt |
Sept 24 2001 |
10 |
3 |
9.2% |
0 |
| Cooper Elementary |
Milwaukee |
Sept 17 2001 |
90 |
3 |
10.5% |
2 |
|
2001 Totals |
7 schools |
|
606 |
Range: 2-3 |
Range: 9.2-38.8% |
10 |
|
2000 |
|
School Name |
City |
Survey Date |
Total # of Leaves Collected |
Highest Level of Ozone Injury Found |
Average Level of Ozone Injury Found |
Average % Ozone Injured Leaves Per Plant |
Total # of Monarchs Observed |
|
Amery High School |
Amery |
Sept 8 2000 |
218 |
2 |
1 |
1.1% |
4 |
|
Central Middle School |
Hartford |
Sept 12 2000 |
30 |
UK |
UK |
0.97% |
1 |
|
Farmington Elementary |
Kewaskum |
Sept 2000 |
12 |
UK |
UK |
UK |
0 |
|
Jefferson School |
Milwaukee |
Sept 13 2000 |
20 |
2 |
2 |
1.2% |
0 |
|
Lakeland Vocational High School |
Minocqua |
Sept 8
2000 |
210 |
3 |
1 |
15.6% |
1 |
|
Prairie Lane School |
Pleasant Prairie |
Sept 22 2000 |
10 |
3 |
2 |
76.24% |
0 |
|
Rosholt Middle School |
Rosholt |
Sept 13 2000 |
10 |
1 |
1 |
2.5% |
0 |
|
Urban Middle School |
Sheboygan |
Sept 6 2000 |
30 |
0 |
0 |
0 |
3 |
|
2000 Totals |
8 schools |
|
540 |
3 |
Range: 0-2 |
Range: 0-76% |
9 |
|
1999 |
|
School Name |
City |
Survey Date |
Total # of Leaves Collected |
Highest Level of Ozone Injury Found |
Average Level of Ozone Injury Found |
Average % Ozone Injured Leaves Per Plant |
Total # of Monarchs Observed |
|
Amery High School |
Amery |
Sept 10 1999 |
150 |
3 |
1-2 |
13.04% |
4 |
|
Clement Avenue School |
Milwaukee |
Sept 6 1999 |
80 |
3 |
1-2 |
9.32% |
1 |
|
Riverdale School |
Muscoda |
Sept 1999 |
10 |
0 |
0 |
0 |
0 |
|
South High School |
Sheboygan |
Sept 1999 |
98 |
2 |
1-2 |
13.04% |
7 |
|
1999 Totals |
4 schools |
|
338 |
3 |
Range: 0-2 |
Range: 0-13% |
12 |
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