我国生态环境监测行业空气和废气中非甲烷总烃检测能力浅析

Analysis of the detection capacity of ambient air and stationary source emission nonmethane hydrocarbons in China ecological environment monitoring industry

为了解生态环境监测行业空气和废气中非甲烷总烃的检测能力现状,为我国实现碳中和目标提供可靠的技术支撑,在全国范围内组织生态环境监测行业实验室开展非甲烷总烃检测能力验证,其中环境空气和废气非甲烷总烃分别有230家和201家实验室参加。该次能力验证的样品采用钢瓶气的形式,测试结果采用迭代稳健统计方法进行分析和评价。结果表明,环境空气和废气非甲烷总烃结果满意率分别为92.6%和91.0%;不同省份地区中环境空气非甲烷总烃满意率达100%的占64.5%,废气非甲烷总烃满意率达100%的占67.9%。由此可见,生态环境监测行业实验室环境空气和废气非甲烷总烃的总体检测能力和技术水平较好。

To understand the current status of detection capacity in ambient air and stationary source emission nonmethane hydrocarbons and provide technical support for achieving carbon neutrality goals in China, the laboratories of the ecological environment monitoring industry have been organized nationwide to carry out nonmethane hydrocarbons proficiency testing. In the proficiency testing, 230 and 201 laboratories participated in the ambient air and stationary source emission nonmethane hydrocarbons, respectively. The samples of this proficiency testing are in the form of cylinder gas, and the test results are analyzed and evaluated by an iterative robust statistical method. The experimental results show that the satisfaction rate of the nonmethane hydrocarbons in ambient air and stationary source emission is 92.6% and 91.0%, respectively. In different provinces regions, the ambient air nonmethane hydrocarbons satisfaction rate of 100% accounts for 64.5%, and the stationary source emission nonmethane hydrocarbons satisfaction rate of 100% accounts for 67.9%. It can be seen that the overall detection ability and technical level of nonmethane hydrocarbons in ambient air and stationary source emission of laboratories in the ecological environment monitoring industry are relatively good.