Is it safe to eat vegetables grown at Alameda Point? A little-known EPA study conducted in 2005 around the Big Whites and Alameda Point Collaborative housing tried to answer that question. In the study, researchers collected fruits, vegetables and edible weed plants such as apples, figs, tomatoes, fava bean seeds, and also flowers of Cat’s Ear which people had been observed gathering for food.
The fruits and vegetables were gathered for the study from 15 locations and analyzed to see if PAHs (polycyclic aromatic hydrocarbons) were absorbed by the root systems and transferred to the edible parts. PAHs occur in oil, coal, and tar, and can be produced by forest fires and car exhaust. They are of particular concern in the tested area because rail cars once carried oil products along the northern shore and also because dredge soils from the Oakland Estuary used to form Alameda Point contained byproducts from the coal gasification plant that once operated in Oakland near the estuary. Some of the chemicals in the PAH family, notably benzo(a)pyrene, have been identified as carcinogenic by the federal Environmental Protection Agency.
Even though some of the soil areas contained elevated levels of PAHs, the edible parts of the plants were found not to contain any contaminants. “None of the 16 PAH congeners on the EPA Priority Pollutant List was detected in any of the plant samples collected from the site,” the report says. Continue reading “Point Being: Are Point Veggies Safe?”