科学技术的迅速发展,要求环境卫生工作者不断更新知识,才能跟上时代的步伐。解放以来,我国的环境卫生工作有两个明显特点:(1)工作的深度和广度有很大发展;(2)横向学科的渗透很突出。环境卫生工作的好坏,在很大程度上取决于环卫工作者知识水平的高低。现在有许多同志不熟悉调查设计,取得资料后不擅长统计分析,这在基层工作者尤为突出,一般讲,他们的 The rapid development of science and technology requires environmental health workers to constantly update their knowledge in order to keep pace with the times. Since the liberation, China’s environmental health work has two distinct features: (1) The depth and breadth of the work has greatly improved; (2) The penetration of horizontal subjects is very prominent. The quality of sanitation work depends to a large extent on the level of knowledge of sanitation workers. Many comrades are now unfamiliar with survey design and are not good at statistical analysis after obtaining information. This is particularly prominent among grass-roots workers. Generally, their