上海市降尘监测中存在的问题

Influencing factors of Dustfall Monitoring in Shanghai

降尘监测是探索大气可自然沉降颗粒物对环境影响的不可缺少的手段之一。降尘监测因其采样设备简便、操作简单易行等优点被广泛运用,但是监测周期长、环节多等因素都会影响降尘监测的准确性。通过对上海市降尘数据分析发现,上海市降尘监测中存在降尘数据波动大、受周边环境影响大、人为破坏多等问题,并就这些问题提出了若干建议和解决办法。

Dusffall monitoring is a necessary way for appraising impact on environment from particles fall in atmosphere. Dustfall monitoring is adopted widely because the equipments are simple and easy to operate. But dusffall monitoring period is long and many processes are involved in dusffall monitoring. So accuracy of dusffall monitoring may be affected by these factors. By the analysis of dusffall data in Shanghai, some questions in dusffall monitoring were found. Variation of dustfall monitoring data was large. Data was easily influenced by environment nearby and equipment may be damaged by artificial factors. At last, some suggestions to solve these questions are given to improve dustfall monitoring.