Legacy Phosphorus and Harmful Algal Blooms in Lake Erie
Legacy Phosphorus and Harmful Algal Blooms in Lake Erie
Legacy Phosphorus and Harmful Algal Blooms in Lake Erie
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<strong>Lake</strong> <strong>Erie</strong> Total <strong>Phosphorus</strong> Load<strong>in</strong>g, 1967-2008<br />
30,000<br />
25,000<br />
Annual load, metric tons<br />
20,000<br />
15,000<br />
10,000<br />
TP target load<br />
11,000 metric tons<br />
5,000<br />
0<br />
1967<br />
1969<br />
1971<br />
1973<br />
1975<br />
1977<br />
1979<br />
1981<br />
1983<br />
1985<br />
1987<br />
1989<br />
1991<br />
1993<br />
1995<br />
1997<br />
1999<br />
2001<br />
2003<br />
2005<br />
2007<br />
Direct Po<strong>in</strong>t Sources Atmospheric Deposition <strong>Lake</strong> Huron Input<br />
Indirect Po<strong>in</strong>t Sources Tributary Monitored NPS only Adjustment for Unmonitored Area<br />
Load, all sources<br />
Data from Dave Dolan, UWGB
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