State of California Devertuent of Public Health Air samples were taken and msasured by methods set forth by the USPHS. (Field estimate gives 5 hr decay; USPHS assay is back extrapolated to 5 hrs decay. All data expressed in mcf.)
State of California Devertuent of Public Health Air samples were taken and msasured by methods set forth by the USPHS. (Field estimate gives 5 hr decay; USPHS assay is back extrapolated to 5 hrs decay. All data expressed in mcf.)