Sze Yee WeeAhmad Zaharin Aris2024-05-202024-05-202017Wee, S. Y., & Aris, A. Z. (2017). Ecological risk estimation of organophosphorus pesticides in riverine ecosystems. Chemosphere, 188, 575-581.https://repoemc.ukm.my/handle/123456789/1525The risk quotient (RQ) method was applied to assess the potential risk of organophosphorus pesticides (OPPs), primarily focusing on riverine ecosystems. Using the available ecotoxicity data, aquatic risks from OPPs (diazinon and chlorpyrifos) in the surface water of the Langat River, Selangor, Malaysia were evaluated based on general (RQm) and worst-case (RQex) scenarios. Since the ecotoxicity of quinalphos has not been well established, quinalphos was excluded from the risk assessment.enOrganophosporus pesticide (OPP)Pesticide exposureRiverine ecosystemAquaticRisk assessmentRisk quotientJournal