Pesticides or plant protection products are a category of substances that pose a high risk to living beings, are dangerous because of their harmful effects at low doses, and are polluting because they can spread in the environment in abnormal quantities. In order to protect the environment and public health, good life cycle management of pesticides must be based on effective registration of these chemicals and comprehensive and enforceable legislation. Thus, I have taken the example of zinc phosphide, organophosphates and synthetic pyrethroids, which are heavily used in agricultural activities.