The harm of herbicides to humans

Nowadays, farmers use herbicides to remove weeds when growing crops. Because if the grass grows in large quantities, it will take away nutrients from the crops, making it impossible for the crops to grow normally. Herbicides can eliminate most of the grass in the fields. Herbicides are very toxic, so human body should try to avoid contact with herbicides. So, what harm do herbicides do to humans?

1. The symptoms of systemic poisoning caused by various routes of absorption are similar, but the symptoms of poisoning caused by field spraying are relatively mild and the probability of lung damage is relatively low.

2. Local irritation symptoms

1) Skin contamination can cause contact dermatitis and even burns, manifested as erythema, blisters, ulcers and necrosis. Nails may also be severely damaged or fall off. Oral poisoning may also cause erythema.

3) Inhalation of the respiratory tract may cause nosebleeds, nasopharyngeal irritation symptoms (sneezing, sore throat, congestion, etc.) and irritating cough.

4) Ingestion by mouth may cause corrosion and ulceration of the oral, throat and esophageal mucosa.

3. Systemic signs of poisoning affect multiple organ systems. Except for pulmonary edema and hemorrhage that occur quickly after accidental oral ingestion of large amounts, most of the symptoms develop gradually. Necrosis of the lungs, kidneys, liver, heart and adrenal glands will occur within about 1 to 3 days, and fever may occur during the course of the disease.

4. Digestive system

Nausea, vomiting, abdominal pain, diarrhea and bloody stools appear in the early stages. After a few days (about 3 to 7 days), jaundice, abnormal liver function and other liver damage symptoms appear, and even liver necrosis may occur. A case of oral poisoning death from acute liver necrosis was reported in Dalian, China.

5. Urinary system

Symptoms of bladder irritation such as frequent urination, urgency, and pain when urinating, abnormal urine test results, changes in urine volume, and even acute renal failure may occur, usually 2 to 3 days after poisoning.

1. Choose the right herbicide

Different crops have different sensitivities to different herbicides. Therefore, when choosing a herbicide, you must be aware of its characteristics and performance to see whether it is suitable for the crops that need to be protected.

2. Use herbicides correctly

1) Strictly follow the dosage and concentration instructions on the herbicide instructions. Do not increase the dosage and concentration without authorization, and spray evenly to prevent local crop damage due to excessive dosage and concentration of herbicides.

2) The sprayer that has been used with herbicides must be cleaned. First rinse it with clean water, then wash it repeatedly with soapy water or 2-3% alkaline water several times, and finally rinse it with clean water.