these, 27.192 were accidents causing the injured to be off work for more than three days, and were therefore reportable under the work- men's compensation ordinance. Exactly 379 occupational deaths were recorded, but it was found on investigation that 137 occurred among seamen recruited in Hong Kong, and $4 were due to natural causes. 96. Industrial health officers participated on medical boards to assess the degree of disability of 6.731 injured workers. Health visitors and industrial nurses carried out case work, calling on homes and attend- ing at the casualty departments of major hospitals.
97. Monitoring of air pollutants continued, the number of stations being 33. 13 on the Island, 13 in Kowloon and 7 in the New Terri- tories. The use of the Husy plate for sulphation rate was found to be satisfactory, and completely replaced lead candles. The advisory com mittee on air pollution continued to meet regularly at intervals of two months.
98. The industrial health laboratory was designated by the World Health Organization as a national laboratory. It took part in an international study on air pollution in conjunction with other national laboratories throughout the world.
HEALTH EDUCATION
99. A better community appreciation of the basic principles of personal and environmental hygiene, and the prevention of disease, continued to be the main health objective. A wide field was covered by many branches of the department, and the co-operation of all voluntary agencies interested in such topics was actively sought.
100. In February 1972, the department participated in the Fisheries Exhibition at Aberdeen by producing displays on various aspects of preventive medicine. In addition, the health education unit in the New Territories organized a number of local health exhibitions in rural towns. Exhibits included displays on personal and environmental hygiene, prevention of diseases, prevention of home accidents, matemal and child health, nutrition, and so on.
IV. WORK OF THE MEDICAL DIVISION (Tables 47-72)
101. At the end of 1971, a total of 15,916 beds was available in all hospitals in Hong Kong, excluding those maintained by the armed
20
0.
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H.R.H. The Princess Anne inspecting the model of the New Lai Chi Kok
Hospital at the foundation stone laying ceremony on 27th October. 1971.