Nitrogen deposition impacts on a nutrient-poor grassland ... - Cal-IPC
Nitrogen deposition impacts on a nutrient-poor grassland ... - Cal-IPC
Nitrogen deposition impacts on a nutrient-poor grassland ... - Cal-IPC
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Problem is not going away so<strong>on</strong><br />
NO x Emissi<strong>on</strong>s<br />
T<strong>on</strong>s/day<br />
180<br />
160<br />
140<br />
120<br />
100<br />
80<br />
60<br />
40<br />
20<br />
0<br />
1975 1980 1985 1990 1995 2000 2005 2010<br />
Santa Clara<br />
San Mateo<br />
San Francisco<br />
2001 <strong>Cal</strong>ifornia Almanac of Emissi<strong>on</strong>s and Air Quality<br />
Amm<strong>on</strong>ia emissi<strong>on</strong>s likely to get worse