Commentary: 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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The Continuous Work History Sample (CWHS) is the oldest major continuous longitudinal sample data source in the Federal statistical system. It was developed to fulfill the need for statistics to be used in planning and operating the old-age insurance system established by the Soda1 Security Act of 1935. This Act led to the establishment of one of the most extensive sets of administrative record...
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The work of Thomas McKeown has spawned a decades-long controversy about the sources of the long-term reduction in mortality, beginning sometime in the 18th century, that, in his view, was undeniably the impetus for the modern rise of population. On one side of the debate, McKeown argues that a changing economic environment, specifically increases in food production resulting in better nutrition...
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I have long felt the need for documentation on the global development—I could probably pin it to the moment I was visiting health technology assessment (HTA) institutions in the United States in 1995, and was looking forward to a trip to the Office of Technology Assessment, only to be told it had just been shut. Instead, I visited the Office of Health Technology Assessment in Washington. In add...
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Measurement in science has a long tradition as described by Lemmerich /LEMM88/. While the measurement of length the meter was defined in 1889 /LEMM88/, p.87, the measurement of temperature was more complicated. The graduation of the distance of the fixpoints was introduced by Fahrenheit in 1714 and by Celsius in 1742. Celsius devided the scale of 100 degrees and 0 degrees in hundred equal secto...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 1974
ISSN: 0091-6765
DOI: 10.2307/3428278