Sampling Size Determination: Application in Geochemical Sampling for Environmental Impact Assessment.
Quantification of the uncertainties associated with environmental geochemical prediction, such as the function of sample size, remains a concern when performing impact assessments, more specifically Environmental Impact Assessments (EIA). While the determination of sample size in the EIA is limited,...
| Publicado en: | Environmental Management Vol. 75; no. 7; pp. 1886 - 1899 |
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| Autores principales: | , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Jul2025
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=186469050&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 186469050 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 0364152X O5H jtl: Environmental Management issn: 0364152X maglogo: N pubinfo: dt: Jul2025 vid: 75 iid: 7 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 186469050 185412577 10.1007/s00267-025-02195-1 186469050 ppf: 1886 ppct: 13 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Sampling Size Determination: Application in Geochemical Sampling for Environmental Impact Assessment. aug: au: Zhou, Meng Chihobve, Elizabeth Zhao, Baojin Song, Zhen affil: https://ror.org/03h17x602 School of Sciences, Southwest Petroleum University, 8 Xindu Avenue, 610500, Chengdu, China sug: ab: Quantification of the uncertainties associated with environmental geochemical prediction, such as the function of sample size, remains a concern when performing impact assessments, more specifically Environmental Impact Assessments (EIA). While the determination of sample size in the EIA is limited, there is a definite need for the development of a statistical method, together with a protocol, to address geochemical sample sizing and representative analyses. Based on Central Limit Theorem, this article proposes a statistical method to determine sample sizes, by use of the Vaal River tailing dams in the Witwatersrand Basin and slag dumps of Transalloys Co., Witbank, South Africa, as case studies. It also discusses factors such as confidence intervals, acceptable sampling errors, etc., that could influence sample size estimation, and recommends a trade-off strategy to reduce the sample size for economic reasons. A sample size determination formula was derived at to be used for EIA research and practical work, namely n = ( Z α / 2 × S d) 2 (n - sample number taken), Z α / 2 - obtained from confidence level, S - standard deviation from the sample, d - sampling error, and a benchmark for sampling error was proposed: d benchmark = S n for stakeholders to make wise decisions. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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