Excessive pesticides on vegetables and fruits will cause great harm to people's lives. Then, what kinds of pesticides may be left behind in vegetables and fruits? According to reports, pesticides currently produced and used in China are roughly classified into:
The first category: organophosphorus pesticides (which are phosphates or phosphorothioates). It is the most widely used pesticide. Organophosphorus pesticide poisoning is divided into acute and chronic. Ingestion, inhalation or contact with large amounts of organic phosphorus pesticides in a short time will cause acute poisoning symptoms. The main manifestations are: muscarinic symptoms - nausea, vomiting, abdominal pain, diarrhea, and more Sweat, runny nose, blurred vision, difficulty breathing; nicotine-like symptoms - muscle fibrillation, later developed into systemic convulsions, respiratory paralysis and death; central nervous system symptoms - headache, dizziness, fatigue, drowsiness, convulsions, coma, Central respiratory failure and death; long-term exposure to organophosphorus pesticides will cause symptoms of chronic poisoning, manifested as neurasthenia syndrome - headache, dizziness, fatigue, nausea, loss of appetite, blurred vision.
The second category: carbamate pesticides. These pesticides are moderately and low-toxicity pesticides that can invade the human body through the respiratory and digestive tracts and can be absorbed slowly through the skin and mucous membranes. Symptoms of poisoning are similar to those of mild organophosphorus pesticides poisoning. Headaches, dizziness, fatigue, and nausea can occur. Spit, runny nose, sweating, blurred vision. Symptoms are easily restored in normal circumstances, such as severe oral poisoning, pulmonary edema, brain edema, coma, and respiratory depression.
The third category: insecticide. It is a pesticide that is absorbed through the skin or poisoned by oral administration. The main causes of death may be direct anesthetic effects and damage to the myocardium and vascular smooth muscles and severe hypoxia caused by methaemoglobinemia, which eventually leads to tissue or organ damage. Those who showed lightness were: headache, dizziness, apathy, weakness in the extremities, nausea, and vomiting. Severe cases are: drowsiness, skin purpura, urinary frequency, urinary urgency; even worse, coma, obvious cyanosis and hematuria.
The fourth category is deltamethrin (Kelzin); it is also a pesticide that is absorbed through the skin or poisoned orally. The symptoms of poisoning are: skin irritation, burning sensation, erythema, papules, and nervous system symptoms: nausea, Vomiting, abdominal pain, headache, dizziness, fatigue, muscle beating, runny nose, blurred vision. The cause of death is mostly convulsions and coma.
The fifth category: paraquat. It is also a pesticide that is poisoned by oral or skin absorption. Its toxicity is very strong. It not only damages the renal tubules, leading to proteinuria, hematuria, renal function damage, but also easily causes progressive dyspnea and eventually leads to respiratory failure and death. Can cause heart, liver, adrenal poisoning, causing the corresponding symptoms and signs.
The first category: organophosphorus pesticides (which are phosphates or phosphorothioates). It is the most widely used pesticide. Organophosphorus pesticide poisoning is divided into acute and chronic. Ingestion, inhalation or contact with large amounts of organic phosphorus pesticides in a short time will cause acute poisoning symptoms. The main manifestations are: muscarinic symptoms - nausea, vomiting, abdominal pain, diarrhea, and more Sweat, runny nose, blurred vision, difficulty breathing; nicotine-like symptoms - muscle fibrillation, later developed into systemic convulsions, respiratory paralysis and death; central nervous system symptoms - headache, dizziness, fatigue, drowsiness, convulsions, coma, Central respiratory failure and death; long-term exposure to organophosphorus pesticides will cause symptoms of chronic poisoning, manifested as neurasthenia syndrome - headache, dizziness, fatigue, nausea, loss of appetite, blurred vision.
The second category: carbamate pesticides. These pesticides are moderately and low-toxicity pesticides that can invade the human body through the respiratory and digestive tracts and can be absorbed slowly through the skin and mucous membranes. Symptoms of poisoning are similar to those of mild organophosphorus pesticides poisoning. Headaches, dizziness, fatigue, and nausea can occur. Spit, runny nose, sweating, blurred vision. Symptoms are easily restored in normal circumstances, such as severe oral poisoning, pulmonary edema, brain edema, coma, and respiratory depression.
The third category: insecticide. It is a pesticide that is absorbed through the skin or poisoned by oral administration. The main causes of death may be direct anesthetic effects and damage to the myocardium and vascular smooth muscles and severe hypoxia caused by methaemoglobinemia, which eventually leads to tissue or organ damage. Those who showed lightness were: headache, dizziness, apathy, weakness in the extremities, nausea, and vomiting. Severe cases are: drowsiness, skin purpura, urinary frequency, urinary urgency; even worse, coma, obvious cyanosis and hematuria.
The fourth category is deltamethrin (Kelzin); it is also a pesticide that is absorbed through the skin or poisoned orally. The symptoms of poisoning are: skin irritation, burning sensation, erythema, papules, and nervous system symptoms: nausea, Vomiting, abdominal pain, headache, dizziness, fatigue, muscle beating, runny nose, blurred vision. The cause of death is mostly convulsions and coma.
The fifth category: paraquat. It is also a pesticide that is poisoned by oral or skin absorption. Its toxicity is very strong. It not only damages the renal tubules, leading to proteinuria, hematuria, renal function damage, but also easily causes progressive dyspnea and eventually leads to respiratory failure and death. Can cause heart, liver, adrenal poisoning, causing the corresponding symptoms and signs.