The fallout rate of PB-210 on the western coast of the United States
The deposition rate of atmospheric Pb-210 has been measured during a one year period using plastic funnels as collectors. Observed rates were 0.15 dpm cm−2 yr−1 at a site in Palo Alto, California and 0.21 dpm cm−2 yr−1 at a site in Los Angeles. The Palo Alto value agrees well with a long-term average of 0.14 dpm cm−2 yr−1, obtained from a nearby salt marsh core. These rates are only one-third of those previously estimated using global models for Pb-210 fallout and indicate the need to consider both longitude and precipitation as factors controlling fallout rates. More than 75% of the Pb-210 fallout occurs as wet deposition at the Los Angles site.
Citation Information
Publication Year | 1983 |
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Title | The fallout rate of PB-210 on the western coast of the United States |
DOI | 10.1029/GL010i012p01164 |
Authors | Christopher Fuller, Douglas E. Hammond |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Geophysical Research Letters |
Index ID | 70164482 |
Record Source | USGS Publications Warehouse |
USGS Organization | San Francisco Bay-Delta |