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 |