论文部分内容阅读
环境监测的主要任务是测定空气中(或水中)的微量或痕量有害物质,并确定其含量,从而采取有效措施进行治理.要测定空气中的有害物质,首先要准确采集样品.大气采样器(以下简称采样器)就是一种常用的采样工具.它在环境保护、劳动卫生等部门得到广泛应用,主要原因是它的结构
Environmental monitoring of the main task is to measure the air (or water) trace or trace of harmful substances, and determine its content, so take effective measures to control. To determine the harmful substances in the air, the first accurate sample to be collected. (Hereinafter referred to as sampler) is a commonly used sampling tool.It is widely used in environmental protection, labor and health departments, mainly because of its structure