| Die Biologische Wirkung Von Staub- Und Gasförmigen Immissionen/Die Technik Im Dienste Moderner Kardiologischer Diagnostik 1963 Edition Contributor(s): Kikuth, Walter (Author) |
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ISBN: 3322982955 ISBN-13: 9783322982957 Publisher: Vs Verlag Fur Sozialwissenschaften OUR PRICE: $56.99 Product Type: Paperback Language: German Published: January 1963 |
| Additional Information |
| BISAC Categories: - Science - Reference - Non-classifiable |
| Dewey: 050 |
| Series: Arbeitsgemeinschaft Fur Forschung Des Landes Nordrhein-Westf |
| Physical Information: 0.19" H x 6.69" W x 9.61" (0.35 lbs) 91 pages |
| Descriptions, Reviews, Etc. |
| Publisher Description: Important among the various sources of emission are domestic heating and motor vehicles. Incomplete combustion causes most emissi n. Macro-climatic and micr -climatic conditions are highly significant in the spread and density f air polluti n. Although nly unpleasant smell or soiling air polluti n have caused offen ce, we must recognize and examine the main harmful gaseous and powdery ingredients, particularly th se with lasting harmful effect. Thus, of interest am ng powdery emissions are only the suspended particles 5 p), because only they can penetrate the lungs. Sedimentation methods are therefore n t suited to inf rm us n dust aero- soles injurious to health. The m st important emissions are cancerogenic substances such as 3,4-benzpyren. Under special conditi ns, animal experi- ments sh w that these substances are able to cause bronchial tumours. The increase in lung cancer appears t be ass ciated with high air p llution in cities; the m st frequently and increasingly proved gaseous emissions are S02, CO and N0 . 2 M re imp rtant than the individual components is the examinati n of the combinati n of various gaseous and p wdery air polluti ns. The catastrophes in London, Donora and in the Maas valley, and special conditions in Los Angeles, are significant examples f the importance f air hygiene. Towards the maintenance of clean air, filters can be mounted in chimneys, although filter efficiency drops appreciably with a grain size f |