title: California's shifting sands.
authors.forename: Rebecca
authors.initials: R
authors.lastname: Renner
mesh_terms: D001493:Bathing Beaches / Q000592:standards*; D002140:California; D004782:Environmental Health; D012499:Sanitation; D012822:Silicon Dioxide / Q000737:chemistry*
chemical_list: D012822:Silicon Dioxide