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Sources, distribution, and risk assessment of organochlorine pesticides in Nairobi City, Kenya

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dc.contributor.author Ayodi Lisouza, Fred
dc.contributor.author Okinda Owuor, P
dc.contributor.author Lalah O, Joseph
dc.date.accessioned 2020-07-15T09:15:49Z
dc.date.available 2020-07-15T09:15:49Z
dc.date.issued 2020-01-10
dc.identifier.uri https://repository.maseno.ac.ke/handle/123456789/1494
dc.description.abstract The distribution and sources of organochlorine pesticides (OCPs) in air and surface waters were monitored in Nairobi City using triolein-filled semipermeable membrane devices (SPMDs). The SPMDs were extracted by dialysis using n-hexane, followed by cleanup by adsorption chromatography on silica gel cartridges. Sample analysis was done by GC-ECD and confirmed by GC–MS. Separation of means was achieved by analysis of variance, followed by pair-wise comparison using the t-test (p≤ 0.05). The total OCPs ranged between 0.018 – 1.277 ng/m3 in the air and <LOD – 1391.000 ng/m3 in surface waters. Based on the results, the means of Industrial Area, Dandora and Kibera were not significantly different (p≤ 0.05), but were higher (p≤ 0.05) than those of City square and Ngong’ Forest. The results revealed non-significant (p≤ 0.05) contribution of long-range transport to OCP pollution in Nairobi City … en_US
dc.publisher Elsevier en_US
dc.subject organochlorine, pesticides,Kenya en_US
dc.title Sources, distribution, and risk assessment of organochlorine pesticides in Nairobi City, Kenya en_US
dc.type Article en_US


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