Lead pollution in Tokyo--the pigeon reflects its amelioration
| Autor: | Hironobu Seki, Isao Mizoguchi, Gen Ohi, Masanobu Ohsawa, Keiko Minowa, Fumio Sugimori |
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| Rok vydání: | 1981 |
| Předmět: |
Pollution
Erythrocytes media_common.quotation_subject Lead pollution Legislation as Topic Biochemistry Lead poisoning Toxicology Lag time medicine Feral pigeon Animals Tetraethyl Lead Columbidae Tokyo General Environmental Science media_common biology Chemistry Aminolevulinic Acid medicine.disease biology.organism_classification Biological materials Lead Environmental chemistry Environmental Pollutants Gasoline Half-Life |
| Zdroj: | Environmental research. 26(1) |
| ISSN: | 0013-9351 |
| Popis: | To monitor lead pollution in the Tokyo metropolitan area, we checked the feral pigeon Columba livia var. blood lead levels and δ-aminolevulinic acid dehydratase activities (ALA-D) of the erythrocytes over the period from 1971 to 1980. The pigeons gave much more magnified pictures of lead pollution than atmospheric lead concentrations indicated, even after addition of tetraethyl lead to the regular gasoline was totally banned in 1975. Since the biological half-life of lead in the pigeon was determined to be relatively short, this was considered mainly due to their habit of ingesting gizzard stones polluted with lead. The amelioration of lead pollution, reflected in the pigeons in downtown Tokyo, was observed with a few years of lag time after the improvement of the atmospheric lead concentration was first noted. |
| Databáze: | OpenAIRE |
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