| A study on effects of soil physico-chemical properties on cocoa production in Ondo State IA Ololade, IR Ajayi, AE Gbadamosi, OZ Mohammed, AG Sunday Modern Applied Science 4 (5), 35-43, 2010 | 54 | 2010 |
| Natural radioactivity measurements in rock samples of Ondo and Ekiti states in Nigeria IR Ajayi, OO Kuforiji Radiation measurements 33 (1), 13-16, 2001 | 52 | 2001 |
| Measurement of entrance skin doses to patients in four common diagnostic examinations by thermoluminescence dosimetry in Nigeria IR Ajayi, A Akinwumiju Radiation protection dosimetry 87 (3), 217-220, 2000 | 42 | 2000 |
| A survey of environmental gamma radiation levels of some areas of Ekiti and Ondo States, Southwestern Nigeria OS Ajayi, IR Ajayi Nig. J. Phys., 11: 17 21, 1999 | 39 | 1999 |
| Modeling rainfall as a constraining factor for Cocoa yield in Ondo State IR Ajayi, MO Afolabi, EF Ogunbodede, AG Sunday American Journal of Scientific and Industrial Research 1 (2), 127-134, 2010 | 37 | 2010 |
| Estimation of absorbed dose rate and collective effective dose equivalent due to gamma radiation from selected radionuclides in soil in Ondo and Ekiti State, south-western Nigeria IR Ajayi, OS Ajayi Radiation protection dosimetry 86 (3), 221-224, 1999 | 30 | 1999 |
| The natural radioactivity of surface soils in Ijero-Ekiti, Nigeria IR Ajayi, OS Ajayi, AS Fusuyi Nig. J. Phys 7, 101-103, 1995 | 29 | 1995 |
| An evaluation of the equivalent dose due to natural radioactivity in the soil around the consolidated Tin mine in Baukuru-Jos, plateau state of Nigeria IR Ajayi International Journal of Radiation Research 5 (4), 203-206, 2008 | 24 | 2008 |
| Background radioactivity in the sediments of some rivers and streams in Akoko, Southwestern, Nigeria and their radiological effects I Ajayi Health Physics 101 (1), 2011 | 23 | 2011 |
| Evaluation of the 137Cs activity-depth profiles by the diffusion-convection model IR Ajayi, AT Raji Intern J Phys Sci 5 (2), 154-157, 2010 | 17 | 2010 |
| Estimation of indoor radon and its progeny in dwellings of Akoko region, Ondo State, Southwestern Nigeria A Asere, I Ajayi J. Sci. Res. Reports 14, 1-7, 2017 | 11 | 2017 |
| Arsenic, nickel and iron concentration levels in water samples from hand-dug wells from Ugbe Akoko OM Afolabi, IR Ajayi, RS Fayose, O Olubosede, AG Sunday American Journal of Applied Sciences 8 (2), 182, 2011 | 11 | 2011 |
| Absorbed dose rates in air due to U, Th and K in soils in parts of South-Western Nigeria IR Ajayi, MO Oresegun, IA Babalola Nigerian Journal of Physics 8, 1996 | 11 | 1996 |
| Estimation of outdoor gamma dose rates and lifetime cancer risk in Akoko Region, Ondo state, Southwestern Nigeria AM Asere, IR Ajayi Journal of Environmental Science, Toxicology and Food Technology 11 (5), 49-52, 2017 | 10 | 2017 |
| Modeling temperature as a constraining factor for cocoa yield in Ondo State IR Ajayi, OM Afolabi, RS Fayose, AG Sunday, MZ Mohammed American international Journal of contemporary Research 2 (7), 172-178, 2012 | 10 | 2012 |
| Concentration and vertical distribution of 137Cs in the undisturbed soil of southwestern Nigeria IR Ajayi, HW Fischer, A Burak, A Qwasmeh, B Tabot Health physics 92 (1), 73-77, 2007 | 10 | 2007 |
| A review on environmental radon and its potential health risk on humans TJ Ojo, IR Ajayi Journal of Environmental Science, Toxicolology and Food Technology 8, 1-8, 2014 | 9 | 2014 |
| Determination of natural radionuclides in rocks of the Ikogosi Ekiti warm spring area, Ekiti State OS Ajayi, O Adegbuyi, P Farai, IR Ajayi Nigeria Nigerian J Sc 30 (2), 15-21, 1996 | 9 | 1996 |
| Natural background dose and radium equivalent measurements at Ikogosi warm spring, Nigeria MO Isinkaye, IR Ajayi Radiation protection dosimetry 121 (4), 466-468, 2006 | 8 | 2006 |
| Assessment of geoelectric properties and localized geology as indicators on cocoa (Theobroma cacao) yield in a part of southwestern Nigeria AG Osotuyi, MZ Mohammed, IR Ajayi, AO Salako Heliyon 7 (12), 2021 | 7 | 2021 |