一種非系統性有機磷殺蟲劑,透過接觸和內服作用來控制多種害蟲。它用於農業、園藝和林業,用於防治蚜蟲、薊馬、毛蟲和甲蟲等害蟲。 「20 EC」係指濃度為20%的毒死蜱乳油製劑,使用前需用水稀釋。毒死蜱會抑制昆蟲體內的乙醯膽鹼酯酶,導致神經系統過度刺激和麻痺。
「甲基陶斯松」和「陶斯松」(Chlorpyrifos) 是國際間廣泛使用的有機磷殺蟲劑,常作為環境用藥,用來防治蚊子、孑孓、蟑螂、螞蟻、跳蚤、白蟻、蟑螂等。
陶斯松是透過影響昆蟲的神經傳導,讓昆蟲麻痺、死亡。但如果人類長期、過度暴露在這類藥劑中,也會危害人體的神經傳導,特別是嬰幼兒、孕婦等族群。
有關禁用陶斯松的議題在國際間已討論多年,目前在歐洲、美國已逐步禁用。本港預告修正《環境用藥禁止含有之成分及檢驗方法》,將「陶斯松」和「甲基陶斯松」列為禁用成分。草案預告後,待正式公告後,將禁止陶斯松在環境用藥的製造、加工、輸入,不再核發許可證。
"Methyl chlorpyrifos" and "chlorpyrifos" are widely used organophosphate insecticides internationally, commonly used as environmental pesticides to control mosquitoes, larvae, cockroaches, ants, fleas, termites, etc.
Chlorpyrifos works by affecting the nerve conduction of insects, causing them to become paralyzed and die. However, long-term and excessive exposure to these pesticides can also harm human nerve conduction, especially in infants, young children, and pregnant women.
The issue of banning chlorpyrifos has been discussed internationally for many years, and it has been gradually banned in Europe and the United States. Hong Kong is expected to amend the "Prohibited Ingredients and Testing Methods for Environmental Pesticides," listing "chlorpyrifos" and "methyl chlorpyrifos" as prohibited ingredients. After the draft is announced and formally promulgated, the manufacture, processing, and import of chlorpyrifos into environmental pesticides will be prohibited, and licenses will no longer be issued.