| 1. | Air pollution level roadside
路边空气污染指数 |
| 2. | The roadside air pollution index reached the " very high " band nine times in february 1999
路边空气污染指数于1999年2月达到甚高水平有9次之多。 |
| 3. | The roadside air pollution index reached the " very high " band nine times in february 1999
路边空气污染指数于1999年2月达到甚高水平有9次之多。 |
| 4. | The roadside air pollution index reached the " very high " band nine times in february 1999
路边空气污染指数于1999年2月达到甚高水平有9次之多。 |
| 5. | The epd has also introduced roadside monitoring stations and announced the roadside api , in advance of many other countries and cities
环保署且率先很多国家和城市设立路边监测站和发布路边空气污染指数。 |
| 6. | The index gives an indication of the level of air pollution which is present in the outdoor environment . the general api reflects the level of air pollution which most people in hong kong are exposed to most of the time
空气污染指数显示室外的空气污染水平，一般空气污染指数代表了我们大部份时间所接触的空气污染情况，而路边空气污染指数则提供繁忙街道旁的污染水平。 |
| 7. | The index gives an indication of the level of air pollution which is present in the outdoor environment . the general api reflects the level of air pollution which most people in hong kong are exposed to most of the time
空气污染指数显示室外的空气污染水平，一般空气污染指数代表了我们大部份时间所接触的空气污染情况，而路边空气污染指数则提供繁忙街道旁的污染水平。 |
