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化学污染物相互作用的提出至今已有40多年历史,在1952年发生的伦敦烟雾事故中,更证实了研究毒物联合作用的重要性,当时测定大气中SO_2平均浓度仅1.7PPm(SO_2阈限值为5PPm),不到发病的浓度,但事故中出现了广泛的呼吸道疾病,通过进一步研究发现SO_2与空气中的铁、锰、钒的可溶性盐形成的气溶胶联合作用于机体,才造成这一严重后果。一、联合作用的表现形式。
The chemical pollutant interaction has been proposed for more than 40 years so far. In the London accident in 1952, the importance of studying the joint action of poison was confirmed. At that time, the average concentration of SO 2 in the atmosphere was only 1.7 ppm (SO 2 threshold 5PPm), less than the concentration of the disease, but the accident occurred in a wide range of respiratory diseases, through further research found that SO2 and air in the iron, manganese, vanadium soluble salts formed aerosol joint action on the body, it caused this Serious consequences. First, the combined effect of the manifestations.