Environmental quality and safety最新文献_第2页

Approaches to insect control based on chemical ecology--case studies. 基于化学生态学的昆虫防治方法——个案研究。

Environmental quality and safety Pub Date : 1976-01-01

I Yamamoto

引用次数: 0

ECDIN, an EC data bank for environmental chemicals. ECDIN，一个欧共体环境化学品数据库。

Environmental quality and safety Pub Date : 1976-01-01

F Geiss, P Bourdeau

{"title":"ECDIN, an EC data bank for environmental chemicals.","authors":"F Geiss, P Bourdeau","doi":"","DOIUrl":"","url":null,"abstract":"All environmentally relevant information is computer stored for each organic chemical manufactured in quantities above 1.000 tons per year (whether it is considered as potentially toxic or not), known toxic chemicals (independently of their production figures) and certain classes of inorganic chemicals. The main data fields (\"attributes\" for each chemical) are: 1. substance identification and physicochemical data; 2. production and use data; 3. handling, transportation, and disposal; 4. environmental involvement (breakdown under biotic and abiotic conditions, average concentrations in environmental matrices); 5. biological effects and toxicity; 6. protection standards, administrative and regulatory data. Structure and substructure codification permits screening for substances with similar structures and coupling to GC-MS-computer analysis units with full or approximative structure outputs. A pilot project has been started permitting queries via direct and inverted file. It will include all available information on a limited number of compounds (some 5.000) from different chemical and use classes. The further software development foresees automatic indexing, automatic encoding of formatted data, automatic query formulation and search on a probabilistic basis for natural-language source data. Easy data flow is ensured by a networking between the central unit at the EC research Centre in Ispra (Italy) and specialised national data centres (ECDIN = European Chemicals Data and Information Network).","PeriodicalId":75827,"journal":{"name":"Environmental quality and safety","volume":"5 ","pages":"15-24"},"PeriodicalIF":0.0,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12213013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laboratory model ecosystem evaluation of the chemical and biological behavior of radiolabeled micropollutants. 放射性标记微污染物的化学和生物行为的实验室模型生态系统评价。

Environmental quality and safety Pub Date : 1976-01-01

R L Metcalf

引用次数: 0

Radioisotope techniques in delineation of the environmental behavior of cadmium. 放射性同位素技术描述镉的环境行为。

Environmental quality and safety Pub Date : 1976-01-01

R I Van Hook, B G Blaylock, E A Bondietti, C W Francis, J W Huckabee, D E Reichle, F H Sweeton, J P Witherspoon

{"title":"Radioisotope techniques in delineation of the environmental behavior of cadmium.","authors":"R I Van Hook, B G Blaylock, E A Bondietti, C W Francis, J W Huckabee, D E Reichle, F H Sweeton, J P Witherspoon","doi":"","DOIUrl":"","url":null,"abstract":"Radioisotope techniques are being developed and utilized at Oak Ridge National Laboratory (ORNL) for evaluating the environmental behavior of toxic elements such as cadmium in aquatic and terrestrial ecosystems. Tracer techniques using 109Cd in microcosm, field plot, and stream systems are providing information on biogeochemical cycling and distribution of cadmium in the environment. Parameters being measured include adsorption capacity for cadmium in mineral soils and sediments; uptake rates of cadmium in various plant species from both soils and nutrient solutions as affected by pH, competing cations, and chemical form of cadmium; and distribution of cadmium in various components of both aquatic and terrestrial ecosystems following application of 109Cd to soil vegetation, or directly to streams. Food chain parameters being estimated with 109Cd include uptake, assimilation, and turnover by both aquatic and terrestrial organisms. Information obtained in these radiotracer studies is providing insight into the behavior of cadmium in aquatic and terrestrial ecosystems, especially transport rates of cadmium and potential biomagnification or dilution in food chains. The factors which influence the incorporation of cadmium into vegetative material as well as those affecting residence time in ecosystems have been identified. Use of 109Cd also has permitted evaluation of a cadmium specific electrode as a tool for rapid assay of free cadmium ions in soil solutions.","PeriodicalId":75827,"journal":{"name":"Environmental quality and safety","volume":"5 ","pages":"167-82"},"PeriodicalIF":0.0,"publicationDate":"1976-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12212846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modern science for future environment and social university youth activities. 面向未来的现代科学环境与社会大学青年活动。

Environmental quality and safety Pub Date : 1976-01-01

J W Dobrowolski

引用次数: 0

Bioaccumulation of 14C-DDT in a small pond. 小池塘中14c -滴滴涕的生物积累。

Environmental quality and safety Pub Date : 1976-01-01

L Salonen, H A Vaajakorpi

引用次数: 0

The evaluation of the teratogenic effects of 2, 4, 5-trichlorophenoxyacetic acid in the Rhesus monkey. 2,4,5 -三氯苯氧乙酸对恒河猴致畸作用的评价。

Environmental quality and safety Pub Date : 1976-01-01

W J Dougherty, F Coulston, L Golberg