Is steadily improving air and water quality : pollution of both is in long term decline 稳步改进空气与水的质量：从远期的观点来看，空气和水的污染程度在逐渐下降。
Monitoring is the process of checking contamination levels and removing external contamination by showering 监测工作是指检查辐射污染程度和透过淋浴清除表面污染。
Another study showed that visits to hospital emergency rooms rose on days with higher pollution levels 另一项研究显示，医院急症人数的多少，与当天的污染程度有关。
Monitoring is the process of checking contamination levels and removing external contamination by showering 监测工作是指检查辐射污染程度和透过淋浴清除表面污染。
The quality situation and pollution degree of groundwater directly represent its environment quality 摘要地下水水质基本状况和污染程度直接反映地下水环境质量的好坏。
Long - term effects may , however , be observed if exposed at this level persistently for months or years 但如长年累月吸入污染程度偏高的空气，长远来说对健康亦可能引致不良的影响。
Long - term effects may , however , be observed if exposed at this level persistently for months or years 但如长年累月吸入污染程度偏高的空气，长远来说对健康亦可能引致不良的影响。
The change of wind speed and direction has a significantly influence on the oil film trajectory and pollution extent in the port 风速风向的变化对油膜漂移轨迹和港区污染程度影响十分明显。
Be it elastomer , plastic or metals component , cleaning are made possible with our tailored cleaning solution 洁净零件的组装是零件清洗的延伸，从而可以将污染程度最小化，生产最佳化并降低成本。
Water supplies department would take steps to ensure that non - contaminated or least contaminated sources were used preferentially 水务署会采取措施，确保优先使用不受污染或污染程度最低的水源。
