Walk on the windward side of the street where exposure to pollutants can be 50 pcercent less than on the downside 即使只是远离主要污染源?尾气多几米远，空气污染程度都会大大下降。同时，不要走在吸烟人的后面。
Soil quality . pollution detection and characterization methods . general guide for soil gas analyses on site used in land screening 土壤质量.污染程度监测和定性分析.土壤筛选监测时使用的现场土壤气体分析一般指南
If you do decide to buy a car , forming a car pool with your friends or colleagues will help to reduce the pollution that you cause as a group 若你已决定选购汽车，可跟同事或朋友合使用，可减低人均空气污染程度。
Recent studies show that the mediterranean is four times as polluted by oil as the north atlantic , 40 times as bad as the north - east pacific 最近研究表明，地中海的污染程度是北大西洋的4倍，更是东北太平洋的40倍。
Recent studies show that the mediterranean is four times as polluted by oil as the north atlantic , 40 times as bad as the north - east pacific 最近的研究表明地中海的受石油污染程度是大西洋的四倍，东北太平洋的40倍。
Recent studies show that the mediterranean is four times as polluted by oil as the north atlantic , 40 times as bad as the north - east pacific 最近研究表明，地中海的石油污染程度是北大西洋海域的四倍，是东北太平洋海域的四十倍。
The new bioindicators monitoring programme was carried out in six zones which took into account the pollution levels in different areas of hong kong waters 新的生物指标监测计划共包括六个监测区，分别代表本港不同污染程度的海域。
The degree of contamination could only be established at a later date , after the site had been vacated and the government was able to conduct comprehensive soil tests 直至政府接收船厂，进行全面的土壤测试后，才能确定土地受污染程度。
A natural extension of parts cleaning is sub assembly work with the cleaned parts . this minimizes contamination , maximizing production and reduces cost 洁净零件组装是零件清洗的延伸，从而可以将污染程度最小化，生产最佳化进而降低成本。
