pollutant

• We will not consider radioactive pollutants because of their special nature .
  我们不研究放射性污染物，原因是它们的性质特殊。
• The increase of pollutants in the environment follows an upward sloping curve .
  环境污染物的增加是按照倾斜上升的曲线变化的。
• We will display all descriptive and identifying date for each pollutant source .
  我们列出每个污染源的所有说明性和标准性的数据。
• Knowledge of any given exposure to air pollutant mixtures is largely inadequate .
  关于任何特定的暴露于空气污染混合物中的知识，都是极为欠缺的。
• Once pollutants become airborne they are subject to the dispersing action of the atmosphere .
  一旦污染物被空气携带，它们就受到大气层的散布作用。
• Each of the preceding classifications of polluted air masses involves primarily particulate pollutants .
  上述每类被污染空气基本都含有粒状污染物。
• At any time the macrophage system might be injured by viral infection or air pollutant exposure .
  巨噬细胞随时都可能受病毒感染或空气污染物所损伤。
• Sulfur dioxide has a more venerable history as an air pollutant than any other chemical .
  作为一种空气污染物来说，二氧化硫比任何其它化合物历史更悠久。
• The term photochemical oxidants refers to the secondary pollutants formed in photochemical smog .
  光化学氧化剂这一词是指在光化学烟雾中生成的次生污染物。
• An example of the effect that nearby, mountain ridges may have on pollutant transport is give in fig. 7－4 .
  图74例示了附近山峰对污染物输送可能有的影响。