the stain and water-resistant chemical known as pfa is used to keep the box sturdy even when they ared with grease. several environmental and health groups are petitioning the fda to get rid of the boxes. they say the chemicals to lead to health problems. the chemical industry insists those chemicals are safe. >>> i hope so. because i love my pizza. let's take a look at our saturday morning forecast. here is the roof top cam, the transamerica building, socked in with fog. a lot of it through the bay area. here is what you can expect. low clouds and fog, sunshine away from the coast. this cooling trend is going to continue, even into the work week. but first, let's look at the highs. we're going to get close to the low 80, in the south bay. 79 in santa clara, 73 palo alto. 77 in union city. as we slide on over to the east bay, brentwood 83, san ramone 74, danville 72, concord 75 degrees today. oakland, 68 degrees, berkeley 67; daly city, a cool 56 and the north bay, 72 degrees today. so, that cooling trend continues this weekend. today and tomorrow as we head on into sunday, more cloud