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Sediment Quality in Puget Sound Year 2 - Center for Coastal ...

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Table 39. Spatial extent of toxicity (km2 and percentages of total area) <strong>in</strong> cytochrome P450<br />

HRGS tests per<strong>for</strong>med with solvent extracts of sediments from 8 U. S. bays and estuaries.<br />

Cytochrome P450 Cytochro<strong>in</strong>e<br />

HRGS (>11.1 P450 HRGS<br />

(>3 7.1 pglg)<br />

Survey areas <strong>Year</strong> No. of Total Toxic PCT. of Toxic PCT. of<br />

sampled sediment area of area area area area<br />

samples survey (km2) toxic (km2) toxic<br />

(km2)<br />

northern Chesapeake Bay<br />

Delaware Bay<br />

central <strong>Puget</strong> <strong>Sound</strong><br />

Sab<strong>in</strong>e Lake<br />

northern <strong>Puget</strong> <strong>Sound</strong><br />

Southern Cal. Estuaries<br />

Biscayne Bay, 1996<br />

Galveston Bay<br />

Cumulative national estuar<strong>in</strong>e averages based upon data collected through: -<br />

1997 627 8023.5 1604.2 20.0<br />

Page 197

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