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.

Autor:	Jaabiri Kamoun I; Laboratory of Environmental Engineering and Eco-Technology, Sfax, Tunisia., Jegede OO; Department of Zoology, Obafemi Awolowo University, Ile-Ife, Nigeria., Owojori OJ; Department of Zoology, Obafemi Awolowo University, Ile-Ife, Nigeria., Bouzid J; National School of Engineering of Sfax, Laboratory of Plant Biotechnologies Applied to Crop Improvement, Sfax, Tunisia., Gargouri R; National School of Engineering of Sfax, Laboratory of Plant Biotechnologies Applied to Crop Improvement, Sfax, Tunisia., Römbke J; ECT Oekotoxikologie, Flörsheim, Germany.
Jazyk:	angličtina
Zdroj:	Integrated environmental assessment and management [Integr Environ Assess Manag] 2018 Jan; Vol. 14 (1), pp. 92-104. Date of Electronic Publication: 2017 Aug 22.
DOI:	10.1002/ieam.1966
Abstrakt:	Indiscriminate use of pesticides is rampant in most parts of Africa, but only scanty ecotoxicological data exist for the protection of soil organisms-and these data were usually obtained under temperate conditions, including the use of Organisation for Economic Co-operation and Development (OECD) standard test protocols. In order to assess the effects of 3 commonly used pesticides (deltamethrin, dimethoate, chlorpyrifos) on soil fauna in Africa, noncontaminated natural soils were collected from Nigeria and Tunisia. In addition, 2 common test soils, OECD artificial soil and European (Landwirtschaftliche Untersichungs- und Forschungsanstalt [LUFA]) 2.3 soil, were used in OECD standard reproduction tests. Two microarthropod species, the springtail Folsomia candida and the predatory mite Hypoaspis aculeifer, were exposed in these 4 soils spiked individually with the 3 insecticides. Results show that the collembolan F. candida was more sensitive than the mite H. aculeifer for all 3 insecticides. The toxicity of each insecticide in the 4 soils differed, with few exceptions, by less than an order of magnitude. However, the pattern of toxicity was not consistent, that is, the lowest toxicity was often but not always found in OECD artificial soil. Soil- and pesticide-specific patterns of toxicity to F. candida and H. aculeifer might be related to the physicochemical properties of the soils and thus the availability of the 3 pesticides. Following the rules laid down in the European Union for the registration of pesticides and using standard European exposure scenarios, neither an acute nor a chronic risk of dimethoate and chlorpyrifos can be excluded (with few exceptions) in all 4 soils. Lower risks were identified for deltamethrin. For pesticide used in Africa, an environmental risk assessment based on data gained in tests with at least 1 additional natural field soil, preferably of African origin, should be performed using the same risk assessment principles as in the European Union. Integr Environ Assess Manag 2018;14:92-104. © 2017 SETAC. (© 2017 SETAC.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu Plný text