In Vallejo California the 'Green' Cement mill spews toxins into the San Francisco bay area and surrounding habitats. Trucks moving the cement let out carbon dioxide into the air causing pollution in Vallejo. The factory is also run on fossil fuels, and run off will drain into the Napa river and into the bay areas many river systems. Threatened species of fish such as Salmon and Steel head will be greatly affected by these toxins. The Salmon and Steel head species go up the Napa, Sacramento, and San Joaquin rivers to lay eggs, and Salmon die off in the system, while steel head go back to the ocean. Steel head and salmon are critically endangered in the bay area and the cement factory in Vallejo will help the killing of those two species in the bay area, aswell as the many animal species that rely on salmon and steelhead for food.