{"title":"Measurement of NO 2 and O 3 ambient concentrations in a project area in Niger Delta Region of Nigeria","authors":"E. Ukpebor, P. Okolo","doi":"10.4314/NJCR.V7I1.35561","DOIUrl":null,"url":null,"abstract":"A pre-impact assessment of NO 2 and O 3 in a proposed project area for associated gas gathering in the Niger Delta region of Nigeria has been conducted. Passive samplers (diffusion tubes) which are devices capable of taking samples of gaseous pollutants from the atmosphere through diffusion to their interior and subsequently trapping them on an adsorbing material without the active movement of the gas through the sampler were utilized for this study. Monitoring was done for 8 months to include the rainy (May - August 2000) and dry (November 2000 - February 2001) seasons. Results available indicate low levels of NO 2 and O 3 in the proposed project area with annual ranges of 4.10 - 11.48 µgm -3 NO 2 and of 2.72 - 3.78µgm -3 O 3 . Temporal and spatial variations were observed in the obtained results. Nigerian Journal of Chemical Research Vol. 7 2002: 1-7","PeriodicalId":102130,"journal":{"name":"Nigerian Journal of Chemical Research","volume":"57 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2005-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nigerian Journal of Chemical Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4314/NJCR.V7I1.35561","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
A pre-impact assessment of NO 2 and O 3 in a proposed project area for associated gas gathering in the Niger Delta region of Nigeria has been conducted. Passive samplers (diffusion tubes) which are devices capable of taking samples of gaseous pollutants from the atmosphere through diffusion to their interior and subsequently trapping them on an adsorbing material without the active movement of the gas through the sampler were utilized for this study. Monitoring was done for 8 months to include the rainy (May - August 2000) and dry (November 2000 - February 2001) seasons. Results available indicate low levels of NO 2 and O 3 in the proposed project area with annual ranges of 4.10 - 11.48 µgm -3 NO 2 and of 2.72 - 3.78µgm -3 O 3 . Temporal and spatial variations were observed in the obtained results. Nigerian Journal of Chemical Research Vol. 7 2002: 1-7
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