苯乙烯、邻苯二甲酸酐(苯酐)、顺丁烯二酸酐(酸酐)是塑料、树酯等产品的生产原料及溶剂或中间体。这3种化学物的共同特点是对眼、上呼吸道粘膜等有损伤作用。长期接触引起鼻炎、结膜炎、支气管炎等,如短时间内接触一定量,除引起呼吸道炎症外,严重者可导致急性肺水肿甚至死亡。 Styrene, phthalic anhydride (phthalic anhydride), maleic anhydride (anhydride) is the production of raw materials and solvents or intermediates for plastics, resins and other products. The common feature of these three chemicals is the eye, upper respiratory tract mucosa and other injury. Long-term exposure to rhinitis, conjunctivitis, bronchitis, etc., such as a short amount of exposure to a certain amount, in addition to causing respiratory inflammation, severe cases can lead to acute pulmonary edema and even death.