PubMed · 7361091
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
L G Jacobs. 1980-03-28. Environmental analysis.. https://doi.org/10.1126/science.7361092
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
The minor role of the cancer research community in efforts to control human cancer by testing chemicals in rote bioassays and empirical "carcinogen" labelling is discussed. Although the causation of certain cancers by chemical carcinogens was a prominent segment of cancer research for many years this is no longer the case. The field has become the province of governmental regulators and little evidence suggests that an impact on the incidence of human cancer has resulted. In spite of a promising beginning major changes seem necessary; hopefully the cancer research community will become interested again and will reintroduce scientific disciplines into this area.
This paper reviews the recent progress of passive measurement methods of gamma radiation and radon. Relatively cheap and reliable dosimeters are now available. Results from national and world-wide surveys of natural radiation in bedrock and soils and indoor radon concentrations exist. These can be used to more precisely indicate areas with enhanced exposure to gamma radiation, indoor radon levels and radium and radon in household water. Besides direct measurements of the radiation intensity, additional information (e.g., history of residence, house ventilation habits) is required to reconstruct historical exposure levels for epidemiological investigations. The availability and correctness of this information may influence the validity of exposure estimates.
Occupational exposure to carcinogenic agents on the decks on six Norwegian crude oil tankers was examined in five harbors. The purpose of the study was to evaluate the need for improving the working environment on deck on these tankers. Technical arrangements and the work itself on the deck were observed during loading or unloading. Occupational monitoring was performed by active sampling of benzene, polyaromatic hydrocarbons, and some aldehydes. The crew answered a questionnaire concerning their work, use of protective equipment, and occurrence of acute symptoms. The levels of air-borne carcinogenic agents were low, probably due to closed loading systems on all tankers. However, the seamen reported discomfort during the work that may be related to other chemical agents in the cargo. The seamen were frequently painting with lead chromate paint without using personal protective equipment. This type of chemical exposure should be evaluated.