Is there a safe level of exposure to a carcinogen?
Article Abstract:
The health risk posed by the smallest conceivable chronic dose of carcinogens is investigated to determine if there is a safe level of exposure to carcinogenic materials. It is shown that the risk of lifetime exposure to one molecule per day of the most carcinogenic materials is negligible. This indicates that there is a safe level of exposure, although the specific amount which can be considered as safe should be the subject of further research.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1995
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Relative uptake of cadmium by garden vegetables and fruits grown on long-term biosolid-amended soils
Article Abstract:
The uptake of cadmium by plants in contaminated soil was analyzed to assess the potential for the development of a cadmium uptake index. Cadmium uptake by lettuce exhibited a linear relationship with the levels of cadmium in soil. Furthermore, the levels of cadmium uptake significantly increased during the growing season. However, the uptake of cadmium by plants in contaminated soils is also dependent on the type of plant species.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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