This value,measured as ozone ,was initially set at an hourly average concentration not to exceed 80 ppb more than once per year.

 
  • “毒理學(xué)試驗表明,臭氧的濃度高于環(huán)境值可能對血液的生化活動(dòng)產(chǎn)生危害,降低肺功能,增加一般呼吸系統的不適感?!?/strong>
目錄
附錄 查詞歷史
    国内精品美女A∨在线播放xuan