XN000022-1997-03-14 — Page 19

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locations close to road traffic in built-up urban areas;

combined commercial and residential districts; and

districts close to industrial areas.

Air pollutants reported include sulphur dioxide, nitrogen dioxide, total suspended particulates, and the respirable suspended particulates. All these pollutants can affect respiratory health in sufficient concentration.

Air pollution originated from various sources, including combustion, industrial and construction processes. In terms of impact on local air quality, motor vehicle exhaust is the most important source of nitrogen dioxide and airborne particulate matter, especially the smaller respirable particles.

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Parents also Appreciate Teachers' Drive kicks off

The Assistant Director of Education (Schools), Mr Tong Kai-hong; the Chairman of the Committee on Home-School Co-operation, Mr Tik Chi-Yuen; and committee member, Professor Wong Chung-kwong; will tomorrow (Saturday) kick off "The Parents also Appreciate Teachers' Drive 1997" at the Hong Kong Teachers' Centre.

Representatives from parent-teacher associations will join a round-the-territory bus parade after the Kick-off Ceremony.

They will distribute specially designed thank-you cards to the public in order to arouse public awareness of respecting teachers.

parents.

Last year, a total of 100,000 appreciation cards had been sent to teachers by

This year, parents will send some 600,000 cards to teachers from 686 participating schools.

In response to the Education Department's "Respect our Teachers" Campaign, the annual event is organised by the Committee on Home-School Co-operation and Sing Tao Daily.

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