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Results for “AIR POLLUTION, RADIOACTIVE”

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PubMedDate not supplied

The problems of environmental hazardous substances: an overview.

It was decided to present an overview of problems of environmental hazardous substances by selecting three areas of concern which represent different aspects of the overall subject. All three are topics of great interest at the present time. They provide examples of different causes of the hazards and different approaches to their resolution or containment. Aerial and water contamination by radon gas are a natural hazard only recently recognized. Radon can be contained, but it will require cooperative action and expenditure. Herbicides are a continuing problem demanding increased research activity to establish risk-benefit decisions. Pollution of estuaries and oceans require new development of models for establishing safe levels of some pollutants and prohibition of others.

Air Pollutants, Radioactive↗
PubMed1994

[Long-term integrated radon measurement on a small scale in Vienna and communication with the population].

Long-term integrated radon measurements (alpha-track) were carried out in two housing blocks in Vienna diagonally across from each other. The arithmetic mean was 41 becquerels/cubic metre (= Bq/m3), concentrations ranging from 157 to 9 Bq/m3. The largest variation found within one block came up to a factor of 13, within one house to a factor of 8 and within one floor of one and the same house to a factor of 4. The measurements gave the opportunity to practice risk communication with the residents of the two housing blocks.

Air Pollutants, Radioactive↗
PubMed1994

Radon and man-made vitreous fibers.

Epidemiologic studies of miners have established a causal association between radon exposure and development of lung cancer. During the past decade the focus of attention has turned to the potential risks from exposure to radon in indoor air. Governmental involvement thus far has primarily been aimed at gathering further data and issuing voluntary guidelines for radon control in the indoor environment. The federal government's most recent risk assessment for exposure to indoor radon published in 1992 concluded that exposure to indoor radon results in 13,600 radon-induced lung cancer deaths in the United States each year. As public awareness of such environmental issues continues to grow, physicians will be faced with the need to respond to inquiries regarding potential health effects. Man-made vitreous fibers are silicate glass that have a noncrystalline structure. They have been in production for more than 100 years and are used in numerous applications in residential and commercial settings. The health risks from man-made vitreous fibers that are used in residential and commercial settings are limited to skin and occasional respiratory tract irritation under circumstances of improper installation or maintenance. When glass fiber contaminates an indoor environment, proper repair measures and thorough cleaning of the indoor environment will lead to resolution of any resultant irritant symptoms.

Air Pollutants, Radioactive↗
PubMedDate not supplied

[The radon problem].

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Air Pollutants, Radioactive↗
PubMedDate not supplied

Residential radon-222 exposure and lung cancer: exposure assessment methodology.

Although occupational epidemiological studies and animal experimentation provide strong evidence that radon-222 (222Rn) progeny exposure causes lung cancer, residential epidemiological studies have not confirmed this association. Past residential epidemiological studies have yielded contradictory findings. Exposure misclassification has seriously compromised the ability of these studies to detect whether an association exists between 222Rn exposure and lung cancer. Misclassification of 222Rn exposure has arisen primarily from: 1) detector measurement error; 2) failure to consider temporal and spatial 222Rn variations within a home; 3) missing data from previously occupied homes that currently are inaccessible; 4) failure to link 222Rn concentrations with subject mobility; and 5) measuring 222Rn gas concentration as a surrogate for 222Rn progeny exposure. This paper examines these methodological dosimetry problems and addresses how we are accounting for them in an ongoing, population-based, case-control study of 222Rn and lung cancer in Iowa.

Air Pollutants, Radioactive↗
PubMed1996

Radon and cancer.

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Air Pollutants, Radioactive↗
PubMedDate not supplied

[The radon level of the living quarters in the city of Lermontov and the irradiation doses of the population].

The paper presents the results of determination of the levels of radon in the air of living spaces in the town of Lermontov, Stavropol Territory. Radon was determined by integral determination. Living space radon concentrations were found to be related to the season. The highest levels of air radon pollution were observed in the individual houses.

Air Pollutants, Radioactive↗