| Analysis of heavy metals in water and surface sediment in five rift valley lakes in Kenya for assessment of recent increase in anthropogenic activities EZ Ochieng, JO Lalah, SO Wandiga Bulletin of environmental contamination and toxicology 79, 570-576, 2007 | 162 | 2007 |
| Carbofuran and its Toxic Metabolites Provide Forensic Evidence for Furadan Exposure in Vultures (Gyps africanus) in Kenya PO Otieno, JO Lalah, M Virani, IO Jondiko, KW Schramm Bulletin of environmental contamination and toxicology 84, 536-544, 2010 | 131 | 2010 |
| Sources of heavy metal input into Winam Gulf, Kenya JO Lalah, EZ Ochieng, SO Wandiga Bulletin of Environmental Contamination and Toxicology 81, 277-284, 2008 | 109 | 2008 |
| Soil and water contamination with carbofuran residues in agricultural farmlands in Kenya following the application of the technical formulation Furadan PO Otieno, JO Lalah, M Virani, IO Jondiko, KW Schramm Journal of Environmental Science and Health Part B 45 (2), 137-144, 2010 | 85 | 2010 |
| Copper, lead and cadmium concentrations in surface water, sediment and fish, C. Carpio, samples from Lake Naivasha: effect of recent anthropogenic activities TM Mutia, MZ Virani, WN Moturi, B Muyela, WJ Mavura, JO Lalah Environmental Earth Sciences 67, 1121-1130, 2012 | 61 | 2012 |
| The effect of boiling on the removal of persistent malathion residues from stored grains JO Lalah, SO Wandiga Journal of stored products research 38 (1), 1-10, 2002 | 60 | 2002 |
| Organochlorine pesticide residues in Tana and Sabaki rivers in Kenya. JO Lalah, PO Yugi, IO Jumba, SO Wandiga | 56 | 2003 |
| The distribution of organochlorine pesticides in marine samples along the Indian Ocean coast of Kenya SO Wandiga, PO Yugi, MW Barasa, IO Jumba, JO Lalah Environmental technology 23 (11), 1235-1246, 2002 | 51 | 2002 |
| The major environmental factors that influence rapid disappearance of pesticides from tropical soils in Kenya JO Lalah, PN Kaigwara, Z Getenga, JM Mghenyi, SO Wandiga Toxicological & Environmental Chemistry 81 (3-4), 161-197, 2001 | 47 | 2001 |
| The dissipation, distribution and fate of a branched 14C-nonylphenol isomer in lake water/sediment systems JO Lalah, KW Schramm, B Henkelmann, D Lenoir, A Behechti, K Günther, ... Environmental pollution 122 (2), 195-203, 2003 | 46 | 2003 |
| Water quality and trace metal distribution in a Pristine Lake in the Lake Basin in Kenya EZ Ochieng, JO Lalah, SO Wandiga Bulletin of environmental contamination and toxicology 80, 362-368, 2008 | 43 | 2008 |
| Pesticide usage practices as sources of occupational exposure and health impacts on horticultural farmers in Meru County, Kenya GM Marete, JO Lalah, J Mputhia, VW Wekesa Heliyon 7 (2), 2021 | 42 | 2021 |
| Technological tools for sustainable development in developing countries: The example of Africa, a review S Omwoma, JO Lalah, S Kueppers, Y Wang, D Lenoir, KW Schramm Sustainable Chemistry and Pharmacy 6, 67-81, 2017 | 40 | 2017 |
| Variation in indoor levels of polycyclic aromatic hydrocarbons from burning various biomass types in the traditional grass-roofed households in Western Kenya FA Lisouza, OP Owuor, JO Lalah Environmental Pollution 159 (7), 1810-1815, 2011 | 39 | 2011 |
| Impact of fertilizers on heavy metal loads in surface soils in Nzoia nucleus estate sugarcane farms in Western Kenya S Omwoma, JO Lalah, DMK Ongeri, MB Wanyonyi Bulletin of environmental contamination and toxicology 85, 602-608, 2010 | 38 | 2010 |
| High concentrations of polycyclic aromatic hydrocarbons found in water and sediments of car wash and kisat areas of Winam Gulf, Lake Victoria-Kenya BO Kwach, JO Lalah Bulletin of environmental contamination and toxicology 83, 727-733, 2009 | 37 | 2009 |
| Mineralization, volatilization, and degradation of carbofuran in soil samples from Kenya JO Lalah, SO Wandiga, WC Dauterman Bulletin of environmental contamination and toxicology 56, 37-41, 1996 | 37 | 1996 |
| Occurrence of pesticides residues in French beans, tomatoes, and kale in Kenya, and their human health risk indicators GM Marete, VO Shikuku, JO Lalah, J Mputhia, VW Wekesa Environmental Monitoring and Assessment 192, 1-13, 2020 | 35 | 2020 |
| Monitoring the occurrence and distribution of selected organophosphates and carbamate pesticide residues in the ecosystem of Lake Naivasha, Kenya P Otieno, P Okinda Owuor, JO Lalah, G Pfister, KW Schramm Toxicological & Environmental Chemistry 97 (1), 51-61, 2015 | 35 | 2015 |
| Impacts of climate-induced changes on the distribution of pesticides residues in water and sediment of Lake Naivasha, Kenya PO Otieno, PO Owuor, JO Lalah, G Pfister, KW Schramm Environmental monitoring and assessment 185, 2723-2733, 2013 | 35 | 2013 |
