In the event of a chlorine leakage, residents in the polluted area should not panic, move upwind to the area, and protect their mouths and noses with wet towels; Rest immediately when you reach a safe place and avoid strenuous exercise, so as not to increase the burden on the heart and lungs and worsen the condition; When the eyes or skin come into contact with liquid chlorine, immediately rinse thoroughly with clean water, and the poisoned person can use calcium, vitamin C and dehydrating agent appropriately; Early and sufficient use of glucocorticoids and antibiotics can reduce respiratory and lung damage; using the ultrasonic spray route to deliver the drug directly to the respiratory tract, the effect is better; Patients should be sent to a large hospital or a medical order with an occupational disease department in time