Summary for San Francisco Bay Yerba Buena Island (SFYB)

The following graphs show trends at San Francisco Bay Yerba Buena Island from

years 1986-2009 for the following constituents: Chlordane, Total DDT, Dieldrin,

Total PAH, PCBs, Zinc (Zn), Silver (Ag), Aluminum (Al), Arsenic (As), Cadmium (Cd) ,

Chromium (Cr), Copper (Cu), Iron (Fe), Mercury (Hg), Manganese (Mn), Nickel (Ni),

Lead (Pb), Selenium (Se), Antimony (Sb) and Tin (Sn).

San Francisco Bay Yerba Buena Island (SFYB)

Trend of Total PAHs concentration at San Francisco Bay

Yerba Buena Island

y = 2116.2x - 4E+06

R2 = 0.0777

0

10000

20000

30000

40000

50000

60000

2002 2004 2006 2008 2010

Year

Co

nc

en

tra

tio

n (

ug

/ d

ry g

)

Total

PAHs

Trend of Hg concentration at San Francisco Bay Yerba

Buena Island

y = 0.004x - 7.8712

R2 = 0.0232

0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

2002 2004 2006 2008 2010

Year

Co

nc

en

tra

tio

n (

ug

/ d

ry g

)

HG