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大量研究表明,暴露于高浓度的臭氧可导致哺乳动物肺组织中胶原的聚集。慢性毒性试验显示,大鼠暴露于0.4～1.3ppm臭氧为期几周至六个月,其肺组织中胶原合成和蛋白质合成速率均增加。然而,有关城市环境中存在的臭氧浓度的毒性作用的试验证据不多。作者选用接近污染严重的城市环境中的
Numerous studies have shown that exposure to high concentrations of ozone can lead to the accumulation of collagen in mammalian lung tissue. Chronic toxicity tests showed that exposure of rats to 0.4-1.3 ppm of ozone for weeks to six months increased collagen synthesis and protein synthesis rates in the lung tissue. However, there is little empirical evidence on the toxic effects of ozone concentrations present in urban settings. The author chooses to approach the polluted urban environment