HR: 0800h
AN: ED41A-0080 [Abstracts]
TI: Environmental Analysis Focusing on Nitrate and Phosphate of Lake Merced, San Francisco, California
AU: * Chavez, A
EM: sfrocks@sfsu.edu
AF: John O'Connell High School of Technology, 2355 Folsom Street, San Francisco, CA 94110,
United States
AU: De la Cruz, C
EM: sfrocks@sfsu.edu
AF: Phillip and Sala Burton Academic High School, 400 Mansell Street, San Francisco, CA
94134, United States
AU: Diaz, R
EM: sfrocks@sfsu.edu
AF: Phillip and Sala Burton Academic High School, 400 Mansell Street, San Francisco, CA
94134, United States
AU: Snell, J
EM: sfrocks@sfsu.edu
AF: Mercy High School, 3250 19th Avenue, San Francisco, CA 94132, United States
AU: Bissell, M
EM: sfrocks@sfsu.edu
AF: San Francisco State University, Department of Environmental Studies, 1600 Holloway
Avenue, San Francisco, CA 94132, United States
AU: Rawley, A
EM: sfrocks@sfsu.edu
AF: San Francisco State University, Department of Environmental Studies, 1600 Holloway
Avenue, San Francisco, CA 94132, United States
AU: Kirwin, J P
EM: sfrocks@sfsu.edu
AF: San Francisco State University, Department of Geosciences, 1600 Holloway Avenue, San
Francisco, CA 94132, United States
AB:
Lake Merced is located in the southwest region of San Francisco. The lake is used for recreation by many San
Francisco residents, is home to many animals and plants and is an emergency water source for the City of San
Francisco. We analyzed the lake for nitrate and phosphate concentrations to determine the ecological health of
the lake. High levels of these chemicals increase the risk of eutrophication. Our study finds that the amount of
each chemical is below maximum contaminant levels (MCLs). We tested for arsenic, chromium, copper, lead
and zinc and found that only arsenic and lead were above the MCL. Additionally, we identified the soils and
sands, tested the soil for nitrate and phosphate levels at two sites near large amount of wildlife. We also
identified the native and invasive plants around the lake and found that the lake contains a majority of invasive
plants. Our overall results show that the lake is healthy but could be improved.
UR: http://sf-rocks.sfsu.edu
DE: 6630 Workforce
SC: Education and Human Resources [ED]
MN: 2007 Fall Meeting