In December 21st, according to the Guangzhou city to carry out the use of high toxic substances in workplaces special governance requirements of the program, District Safety Supervision Bureau held the business of the employer occupation health knowledge training class for the use of high toxic substances, the region's 42 high toxic substances are used by the person in charge of the unit and occupational health management staff of more than 80 people participated in the training. The main content of this training is to interpret the special management work plan, explain the occupational hazard prevention and control evaluation standard and the professional health management business knowledge.