EFFECTS OF PO-210 ON DETERMINATION OF ATMOSPHERIC GROSS ALPHA-RADIOACTIVITY

被引：12

作者：

SHEETS, RW

THOMPSON, CC

机构：

[1] Department of Chemistry, Southwest Missouri State University, Springfield, 65804, MO

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1992年 / 161卷 / 02期

关键词：

D O I：

10.1007/BF02040493

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Ingrowth and decay of Po-210 on air filters used for gross alpha-determination can lead to errors in estimation of long-lived airborne radioactivity. Interferences are present to some degree in all samples and change with time, making the gross alpha-technique quantitatively invalid. However, since the degree of equilibrium between Po-210 and its parent Pb-210 can be calculated at any time after filter collection, it should be possible to use the gross alpha-method to estimate past atmospheric concentrations of Pb-210. Measurements on filters after elapsed times of up to 15 years show that such determinations are feasible.

引用

页码：465 / 474

页数：10

共 11 条

[1]

ALBERT RE, 1966, THORIUM ITS IND ASPE

[2] LEAD-212 IN URBAN BOUNDARY-LAYER OF NEW-YORK-CITY [J].

ASSAF, G ;

BISCAYE, PE .

SCIENCE, 1972, 175 (4024) :890-&

[3]

Bateman H, 1910, P CAMB PHILOS SOC, V15, P423

[4] ENGINEERS GUIDE TO ELEMENTARY BEHAVIOR OF RADON DAUGHTERS [J].

EVANS, RD .

HEALTH PHYSICS, 1969, 17 (02) :229-+

[5]

GRAUSTEIN WC, 1986, J GEOPHYS RES, V91, P355

[6]

KATHREN RL, 1984, RADIOACTIVITY ENV

[7]

Lodge J. P., 1989, METHODS AIR SAMPLING

[8] LEAD 210, BISMUTH 210, AND POLONIUM 210 IN ATMOSPHERE - ACCURATE RATIO MEASUREMENT AND APPLICATION TO AEROSOL RESIDENCE TIME DETERMINATION [J].

POET, SE ;

MARTELL, EA ;

MOORE, HE .

JOURNAL OF GEOPHYSICAL RESEARCH, 1972, 77 (33) :6515-+

[9]

1984, QUALITY HDB AIR POLL, V3

[10]

[No title captured]

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