Environmental Risk assessment of Chlorpyrifos and TCP in Aquatic Ecosystems

Abstract

Chlorpyrifos is a commonly used pesticide that belong to the organophosphorus pesticides (OPPs) group. Chlorpyrifos is widely used in residential environments and agriculture for pest control. As many OPPs, Chlorpyrifos degrades faster to more complex and toxic compounds under natural conditions, thus diverse effects of these compounds over aquatic species are unknown. Due to the risk that pesticides as Chlorpyrifos, which mainly breaks down to 3,5,6- trichloro-2-pyridinol (TCP) on the ecosystems, there is an increasing need to intensify the environmental monitoring and ecotoxicological risk assessment for both substances. Risk assessment provides a systematic approach for characterizing the nature and magnitude of the risks associated with environmental health hazards. However, in countries like Colombia, where the use of Chlorpyrifos is widespread, the number of investigations on the dynamics and risk involved in the presence of this class of substances in water bodies is limited.

Isolation, Identification and Use of Bacterial Strain Ochrobactrum intermedium PDB-3 for Degradation of the Pesticide Chlorpyrifos

“…In the 1970s, after the ban on the production and use of organochlorine pesticides (due to their high toxic effects), the amount of organophosphorus pesticides increased significantly, especially in developing countries [64]. The insecticide chlorpyrifos has been widely used worldwide since the 1960s in agriculture to control crops such as cotton, grain plants, vegetables, and fruits.…”

Remediation of chlorpyrifos-contaminated soils by crude secondary metabolites of Trichoderma harzianum T213 and its effect on maize growth

“…Further studies on the repellent effect of chlorpyrifos under standard agricultural conditions include aerial spraying of chlorpyrifos on outdoor plants causes the pesticide to drift onto the ground and become residue in the soil (Aktar et al 2009). In addition, chlorpyrifos may enter the environment through volatilization, spills, and the disposal of chlorpyrifos waste (Arguello et al 2020). Chlorpyrifos from contaminated environments causes acute toxicity to aquatic organisms (especially fish).…”