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Ambient air pollutant analyses-integral part of an environmental impact study. 环境空气污染物分析——环境影响研究的组成部分。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509437435
R L Grob, M A Kaiser, C M Kelly
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引用次数: 0
Contributions to an environmental impact statement. 对环境影响报告书的贡献。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509437433
R L Grob, J J Schuster
{"title":"Contributions to an environmental impact statement.","authors":"R L Grob,&nbsp;J J Schuster","doi":"10.1080/00139307509437433","DOIUrl":"https://doi.org/10.1080/00139307509437433","url":null,"abstract":"<p><p>Assessment of the effects on land use, social, economic, historic and natural environment as a result of highway construction are discussed. Predictions of these effects on the various categories twenty years hence are also presented. Information of this type is a necessary segment of an environment impact study soas to conform to EPAand Department of Rransportation (DOT) guidelines.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"8 3","pages":"189-209"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509437433","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12305405","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
The effect of a proposed transportation facility on noise levels in a suburban community. 拟建的交通设施对郊区社区噪音水平的影响。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509437434
J J Schuster, M A Kaiser
{"title":"The effect of a proposed transportation facility on noise levels in a suburban community.","authors":"J J Schuster,&nbsp;M A Kaiser","doi":"10.1080/00139307509437434","DOIUrl":"https://doi.org/10.1080/00139307509437434","url":null,"abstract":"<p><p>A nine month study of current noise levels was made at twenty-two sites within a community in Eastern Pennsylvania to evaluate the noise pollution factors for a proposed highway. An attempt was made to correlateamnient noise levels for each day of theweek with each location. Computer programs were utilized for datareduction, statistical calculations, and prediction of future noise levels. The prediction analyses were composed of contour analyses, sensitive receptor sites analyses, and the \"Do Nothing\" analysis. Results indicated no noise pollution problems existed during the survey, but future noise levels may exceed Federal Standards for certain sections of the proposed alignments. Factors that cause the unacceptable future noise levels are identified and modifications may be incorporated for adherence to the standards.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"8 3","pages":"211-34"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509437434","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12305406","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: 1
Lead levels in human deciduous teeth in Tennessee. 田纳西州人类乳牙中的铅含量。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509437430
T Chatman, D J Wilson
{"title":"Lead levels in human deciduous teeth in Tennessee.","authors":"T Chatman,&nbsp;D J Wilson","doi":"10.1080/00139307509437430","DOIUrl":"https://doi.org/10.1080/00139307509437430","url":null,"abstract":"<p><p>Deciduous teeth were analyzed by atomic absorption spectroscopy for lead content to ascertain the extent of lead exposure in certain areas in Tennessee. The data were analyzed to clarify the relationships between tooth lead content and race, sex, age, tooth type, economic status, and place of residence. Results indicated that blacks had slightly higher lead concentrations than whites; however, the age and sex of the person or the type of tooth analyzed had little effect upon the lead content. The major factors were shown to be economic status and, indirectly, place of residence.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"8 2","pages":"173-83"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509437430","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12311387","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: 16
A simplified phosphorus analysis technique. 一种简化的磷分析技术。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509437455
S J Elisenreich, R T Bannerman, D E Armstrong
{"title":"A simplified phosphorus analysis technique.","authors":"S J Elisenreich,&nbsp;R T Bannerman,&nbsp;D E Armstrong","doi":"10.1080/00139307509437455","DOIUrl":"https://doi.org/10.1080/00139307509437455","url":null,"abstract":"<p><p>A simplified method for the analysis of total P(TP), total dissolved P(TDP) and dissolved reactive P (DRP) in multiple water samples has been developed. The reported modification utilizes a single digestion reagent and a single \"mixed reagent\" to eliminate neutralization, transfer and dilution steps normally required in total P analyses. The method results in a 70 percent decrease in analysis time for multiple samples, a reduction in the glassware required, and about a 30 percent increase in sensitivity. The method can be directly applied to water samples with P levels of 2 to 1100 ug P/l. Reproducibility and precision measurements compare to or exceed commonly used P techniques.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"9 1","pages":"43-53"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509437455","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12360534","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: 102
Editorial: Science and communications. 社论:科学与传播。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00387017408067291
{"title":"Editorial: Science and communications.","authors":"","doi":"10.1080/00387017408067291","DOIUrl":"https://doi.org/10.1080/00387017408067291","url":null,"abstract":"","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"160 1","pages":"i-ii"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86426902","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
Solvent extraction of organomercury compounds with quaternary amines. 季胺类有机汞化合物的溶剂萃取。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509435811
F L Moore
{"title":"Solvent extraction of organomercury compounds with quaternary amines.","authors":"F L Moore","doi":"10.1080/00139307509435811","DOIUrl":"https://doi.org/10.1080/00139307509435811","url":null,"abstract":"<p><p>Methylmercuric chloride and phenylmercuric acetate extract very efficiently with quaternary amines dissolved in diethylbenzene or other simple solvents. The extraction is effective from either alkaline or acidic solution. The technique considerably extends the scope of conventional solvent extraction practice to permit the extraction and concentration of total mercury in environmental and biological matrices.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"10 2","pages":"77-81"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509435811","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12286311","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: 5
Editorial: Whither air pollution research? 社论:空气污染研究向何处去?
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509437421
M Corn
{"title":"Editorial: Whither air pollution research?","authors":"M Corn","doi":"10.1080/00139307509437421","DOIUrl":"https://doi.org/10.1080/00139307509437421","url":null,"abstract":"","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"8 2","pages":"iii-iv"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509437421","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12310753","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
Solvent extraction of cadmium from alkaline cyanide solutions with quaternary amines. 用季胺萃取碱性氰化物溶液中的镉。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509435806
F L Moore
{"title":"Solvent extraction of cadmium from alkaline cyanide solutions with quaternary amines.","authors":"F L Moore","doi":"10.1080/00139307509435806","DOIUrl":"https://doi.org/10.1080/00139307509435806","url":null,"abstract":"<p><p>Quaternary amines are unique in their ability to extract metal cyanides from highly alkaline solutions. Cadmium cyanide extracts essentially quantitatively at both the subnanogram and macro levels. Regeneration of the amine solvent is achieved by stripping the cadmium with sodium hydroxide, sodium hypochlorite, or alkaline or acidic formaldehyde solutions. Because they readily extract free cyanide as well as anionic metab cyano complexes, the high-molecular-weight quaternary amines show considerable promise for industrial pollution abatement applications.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"10 1","pages":"37-46"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509435806","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12381178","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: 12
Chlorination in dilute aqueous systems; 2,4,6-trichlorophenol. 稀水系统中的氯化作用;2、4、6-trichlorophenol。
Environmental letters Pub Date : 1975-01-01 DOI: 10.1080/00139307509435807
J G Smith, S F Lee, A Netzer
{"title":"Chlorination in dilute aqueous systems; 2,4,6-trichlorophenol.","authors":"J G Smith,&nbsp;S F Lee,&nbsp;A Netzer","doi":"10.1080/00139307509435807","DOIUrl":"https://doi.org/10.1080/00139307509435807","url":null,"abstract":"<p><p>Chlorination of wastewaters can cause extensive transformations of organic contaminants. In the case of phenol, the reaction path is only partially understood. In an effort to elucidate this reaction, 2,4,6-trichlorophenol in dilute aqueous solution was treated with excess hypochlorous acid at pH 3.5-6. The major products were 2,6-dichloroquinone and 2,4,4,6-tetrachloro-2,5-cyclohexadienone. Additional polychlorinated species are formed in minor amounts by the addition of chlorine and/or hypochlorous acid to the aromatic ring.</p>","PeriodicalId":11979,"journal":{"name":"Environmental letters","volume":"10 1","pages":"47-52"},"PeriodicalIF":0.0,"publicationDate":"1975-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/00139307509435807","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12381179","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: 11
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