Assessment of nitrogen and phosphorus loading by atmospheric dry deposition to the Lagos Lagoon, Nigeria

Simple item page
dc.contributor.authorOlayinka, K. O.
dc.contributor.authorOladosu, N. O.
dc.contributor.authorAbayomi, A. A.
dc.contributor.authorAlo, B. I.
dc.date.accessioned2019-02-01T15:49:27Z
dc.date.available2019-02-01T15:49:27Z
dc.date.issued2016-07
dc.description.abstractSurface water pollution has been found to be considerably driven by the contributions of airborne particles, open-air waste burning and fossil fuel combustion, ammonia volatilization from excreta, fertilizer and derivatives from explosive factories. Atmospheric deposition into the Lagos Lagoon is suspected to be a major contributor to the nutrient levels of the lagoon. Atmospheric dry nutrient deposition was monitored at six stations around the Lagos Lagoon from January to June 2012 in order to estimate the contribution of atmospheric deposits into the lagoon’s nutrient cycles. Species of phosphorus (P) and nitrogen (N) in the lagoon water were analyzed by colorimetric methods. Mean [NO− 3 + NO− 2]-N was 3.08 ± 2.10 mg m−2 day−1 (0.55–8.73 mg m−2 day−1). The (NO− 3 + NO− 2)-N was only about 2 % of total N but [NH+ 4 + organic]-N was approximately 38 % of total N. Particulate N was about 60 % of total N. Average total N was 144 ± 94.9 mg m−2 day−1 (48.0–285 mg m−2 day−1). Average soluble reactive P was significantly lower than [NO− 3 + NO− 2]-N averaging about 0.12 ± 0.12 mg m−2 day−1. Soluble reactive P (SRP) was less than 2 % of total P but soluble organic P was about 86 % of total P. Particulate P accounted for about 12 % of total P. Average total P was 4.56 ± 10.1 mg m−2 day−1 (0.48–31.6 mg m−2 day−1). This study shows that atmospheric deposition of nutrients into the Lagos Lagoon is taking place and this may represent a considerable proportion of the total nutrient loading of the lagoon.en_US
dc.identifier.citationOlayinka, K. O., Oladosu, N. O., Abayomi, A. A., & Alo, B. I. (2016). Assessment of nitrogen and phosphorus loading by atmospheric dry deposition to the Lagos Lagoon, Nigeria. Environmental monitoring and assessment, 188(7), 423.en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/3544
dc.language.isoenen_US
dc.publisherSpringer Nature Switzerland AG. Part of Springer Natureen_US
dc.subjectDry depositionen_US
dc.subjectSurface-water pollutionen_US
dc.subjectNitrogenen_US
dc.subjectPhosphorusen_US
dc.titleAssessment of nitrogen and phosphorus loading by atmospheric dry deposition to the Lagos Lagoon, Nigeriaen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Assessment of nitrogen and phosphorus loading by atmospheric dry deposition to the Lagos Lagoon, Nigeria.doc
Size:
28 KB
Format:
Microsoft Word
Description:
Main Article
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Chemistry-Scholarly Publications