Publications

Our research findings published in leading environmental science and toxicology journals.

2025Environmental Toxicology and Chemistry

Effects of realistic current-use pesticide mixtures on the springtail Folsomia candida

Paula S. Tourinho, Zuzana Bílková, Petr Kukučka, Olukayode Jegede, Jakub Hofman

Vol. 44 , pp. 1347-1356

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2025Journal of Hazardous Materials

Prioritization of currently used pesticides in soils of main European crop scenarios for assessment of mixture toxicity and risk on terrestrial biota

Olukayode Jegede, Paula S. Tourinho, Violette Geissen, Jakub Hofman

, pp. 138942

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2025Journal of Hazardous Materials

Occurrence of pesticide residues in harvested products of various crops from European conventional and organic farming systems

Paula S. Tourinho; Zuzana Hochmanová; Petr Kukučka; Martina Hronová; Marek Šudoma; Shiva Sabzevari; Francisco Alcon; Josefina Contreras; Nelson Abrantes; Isabel Campos; Isabelle Baldi; Mathilde Bureau; Abdallah Alaoui; Florian Christ; Daniele Mandrioli; Daria Sgargi; Igor Pasković; Marija Polić Pasković; Matjaž Glavan; Paula Harkes; Esperanza Huerta Lwanga; Trine Norgaard; Vivi Schlünssen; Olukayode O. Jegede; Peter Fantke; Violette Geissen; Hans Mol; Coen J. Ritsema; Vera Silva; Paul Scheepers

Vol. 495 , pp. 139113

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2025Environmental Toxicology and Chemistry

Employing the Eco-Indicator sensitivity distribution (EcoSD) to evaluate the ecological risk of chlorpyrifos on grassland soil with a history of pyric herbivory

Hamzat O. Fajana, Ademola A. Adedokun, Philip A. Abiolu, Olukayode O. Jegede, Eric G. Lamb, Steven D. Siciliano

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2023PLoS ONE

Rocks, lichens, and woody litter influenced the soil invertebrate density in upland tundra heath

Olukayode O. Jegede, Katherine M. Standen, Steven Siciliano, Eric G. Lamb, Katherine J. Stewart

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2023Environmental Pollution

Integument colour change: Tracking delayed growth of Oppia nitens as a sub-lethal indicator of soil toxicity

Olukayode Jegede, Hamzat Fajana, Keyhan Najafian, Jin Lingling, Ian Stavness, Steven Siciliano

Vol. 339 , pp. 122772

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2022Environmental Science and Pollution Research

Toxicity and accumulation of lead and cadmium In the land snail, Archachatina papyracea in a tropical Alfisol from Southwestern Nigeria

Olugbenga Owojori, Michael Awodiran, Oluwadunsin Ajana, Olukayode Jegede

, pp. 1-11

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2022Environmental Pollution

Response addition (RA) is more protective of biogeochemical cycles of carbon and phosphorus compared to concentration addition (CA) in metal mixtures

Awuah Kobby, Jegede Olukayode, Mathieu Renaud, Mark Cousins, Beverley A. Hale, Steven D. Siciliano

Vol. 311 , pp. 119935

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2022Science of Total Environment

More than just a substrate for mites: Moss-dominated biological soil crust protected population of the oribatid mite, Oppia nitens against cadmium toxicity in soil

Hamzat O. Fajana, Tara Rozka, Olukayode Jegede, Katherine Stewart, Steven D. Siciliano

Vol. 857 , pp. 159553

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2020Environmental Pollution

Uptake, toxicity and maternal transfer of cadmium in the oribatid mite, Oppia nitens: Implications in the risk assessment of cadmium to soil invertebrates

Hamzat Fajana, Olukayode Jegede, Kyle James, Natasha Hogan, Steven Siciliano

, pp. 113912

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2020Journal of Hazardous Materials

Single metal and metal mixture toxicity of five metals to Oppia nitens in five different Canadian soils

Olukayode O. Jegede, Kobby F. Awuah, Mathieu Renaud, Mark Cousins, Beverley A. Hale, Steven D. Siciliano

Vol. 392 , pp. 122341

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2020PLoS ONE

Evaluating Three Dosing Methods for Fixed-Ratio Metal Mixture Toxicity to Folsomia candida, Enchytraeus crypticus and Oppia nitens

Mathieu Renaud, Mark Cousins, Kobby F Awuah, Olukayode Jegede, Beverley Hale, José P Sousa, Steven D Siciliano

Vol. 15 , pp. e0229794

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2020Environmental Science and Technology

Introducing the adverse ecosystem service pathway (AESP) as a tool in ecological risk assessment

Awuah Kobby F, Jegede Olukayode, Hale Beverley, Siciliano Steven

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2020Science of the Total Environment

The effects of complex metal oxide mixtures on three soil invertebrates with contrasting biological traits

Mathieu Renaud, Mark Cousins, Kobby F Awuah, Olukayode Jegede, José P Sousa, Steven D Siciliano

Vol. 738 , pp. 139921

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2019Environmental Toxicology and Chemistry

Multigenerational exposure of populations of Oppia nitens to zinc under pulse and continuous exposure scenarios

Olukayode O. Jegede, Beverley A. Hale, Steven D. Siciliano

Vol. 38 , pp. 896–904

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2019Chemosphere

The forgotten role of toxicodynamics: how habitat quality alters the mite, Oppia nitens susceptibility to zinc, independent of toxicokinetics

Jegede Olukayode, Awuah Kobby, Fajana Hamzat, Owojori Olugbenga, Hale Beverley, Siciliano Steven

Vol. 227 , pp. 444-454

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2019Chemosphere

Toxicity assessment of metal mixtures to soil enzymes is influenced by metal dosing method

Kobby Fred Awuah, Olukayode Jegede, Mark Cousins, Mathieu Renaud, Beverley Hale and Steven D. Siciliano

Vol. 232 , pp. 336-376

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2019Environmental Toxicology and Chemistry

Oppia nitens C.L. Koch, 1836 (Acari: Oribatida): Current Status of its Bionomics and Relevance as a Model Invertebrate in Soil Ecotoxicology

Hamzat O. Fajana, Amy Gainer, Olukayode O. Jegede, Kobby F. Awuah, Juliska I. Princz, Olugbenga J. Owojori, Steven D. Siciliano

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2018Integrated Environmental Assessment and Management

Effects of deltamethrin, dimethoate and chlorpyrifos on survival and reproduction of the Collembolan, Folsomia candida and the predatory mite, Hypoaspis aculeifer in two African and two European soils

Ikram Jaabiri Kamoun, Olukayode O Jegede, Olugbenga J Owojori, Jalel Bouzid, Radhia Gargouri, Jorg Römbke

Vol. 9999 , pp. 1–13

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2018Chemosphere

Tropical oribatid mites in soil toxicity testing: Optimization of test protocol and the effect of two model chemicals (Cadmium and dimethoate) on Muliercula inexpectata

Olugbenga J. Owojori, Ademosu T. Oluwadamilare, Olukayode O. Jegede, Hamzat O. Fajana, Temitope O. Kehinde, Mosadoluwa A. Badejo

Vol. 218 , pp. 948-954

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