Measurement of pollution history.
نویسندگان
چکیده
منابع مشابه
Measurement of pollution history.
We have developed a technique to measure the history of pollution exposure levels in the environment based upon the introduction of a time-clock to glacial, lacustrine, and marine sediments. The technique involves the use of 210 Pb, a radioactive member of the 238 U series, which decays with a half-life of 22 yr. This lead isotope enters surface waters unsupported by its parents in the U-238 se...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 1974
ISSN: 0091-6765,1552-9924
DOI: 10.1289/ehp.749179