山东发布《DB37/T 3786-2019 环境空气 硫化氢等气态污染物的测定开放光程紫外吸收光谱法》
p 在无组织污染物排放(控制)标准方面,《大气污染物综合排放标准》(GB 16297-1996)对苯、甲苯、二甲苯、甲醛等制订了排放限值 《恶臭污染物排放标准》(GB 14554-93)对氨、三甲胺、硫化氢、甲硫醇、甲硫醚、二甲二硫醚、二硫化碳、苯乙烯等制订了排放标准。/pp 无组织逃逸监测一直是环境监测领域的盲区,国内有相关的仪器已经实现自动监测,并且在部分工业园区已经安装,但多以空气质量监测为主,而且监测部署多为点位法,由于气象条件的复杂性,几乎无法完成无组织排放逃逸监测。开放光程紫外吸收光谱法的多气体测量系统,可实现远距离、长光程条件测量,分析一条光谱即可得到监测路径内的多种气态污染物的定量分析结果,且现场作业方式灵活,可满足对环境空气中无组织逃逸监测的需要,因此有必要制定标准以规范自动监测方法,并出台相关仪器方法标准,正确指导环境监测机构选择合适的仪器对无组织逃逸排放监测监管。/pp 气态污染物测量仪器目前采用的分析技术主要有:PID法、非分散红外吸收法(NDIR)、FID法、GC-MS和开放光程吸收光谱法(OP-DOAS及OP-FTIR)等,各方法技术特点对比及应用见下表。/ptable border="1" cellspacing="0" cellpadding="0" style="margin-left:0 border-collapse:collapse border:none"tbodytr style=" height:21px" class="firstRow"td width="93" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="21"p style="text-align:center line-height:normal"span style=" font-family:宋体"分析技术/span/p/tdtd width="75" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="21"p style="text-align:center line-height:normal"span style=" font-family:宋体"监测对象/span/p/tdtd width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="21"p style="text-align:center line-height:normal"span style=" font-family:宋体"技术特点分析对比/span/p/tdtd width="133" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="21"p style="text-align:center line-height:normal"span style=" font-family:宋体"应用/span/p/td/trtr style=" height:23px"td width="93" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="23"p style="text-align:center line-height:normal"spanFID/span/p/tdtd width="75" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="23"p style="text-align:center line-height:normal"spanVOC/spanspan style=" font-family:宋体"、/spanspanNMTHC/span/p/tdtd width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="23"p style="line-height:normal"span style=" font-family:宋体"对/spanspanHC/spanspan style=" font-family:宋体"响应灵敏,线性范围宽、稳定、结构简单、使用方便;/span/p/tdtd width="133" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="23"p style=" text-align:center text-indent:0 line-height:normal"span style=" font-family:宋体"实验室/span span style=" font-family:宋体"便携/span/pp style="text-align:center line-height:normal"span style=" font-family:宋体"固定源在线/span/p/td/trtr style=" height:23px"td width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="23"p style="line-height:normal"span style=" font-family:宋体"废气中/spanspanOsub2/sub/spanspan style=" font-family:宋体"、/spanspanHsub2/subO/spanspan style=" font-family:宋体"及含有/spanspanN/spanspan style=" font-family:宋体"、/spanspanO/spanspan style=" font-family:宋体"、/spanspanX/spanspan style=" font-family:宋体"的有机物有干扰/span/p/td/trtr style=" height:20px"td width="93" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="text-align:center line-height:normal"spanPID/span/p/tdtd width="75" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="text-align:center line-height:normal"spanTHC/spanspan style=" font-family:宋体"、/spanspanTVOCs/span/p/tdtd width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="line-height:normal"span style=" font-family:宋体"检测器体积小、无需辅助气体,现场便携,可用于室内气体、应急监测、危险泄漏气体检测,无组织排放源/spanspanTVOCs/spanspan style=" font-family:宋体"追踪/span/p/tdtd width="133" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="text-align:center line-height:normal"span style=" font-family:宋体"便携应急/span/p/td/trtr style=" height:20px"td width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="line-height:normal"span style=" font-family:宋体"无法判定气体组分,监测无组织排放源无法厘清排放主体/span/p/td/trtr style=" height:18px"td width="93" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="18"p style="text-align:center line-height:normal"span style=" font-family:宋体"催化氧化/spanspan-NDIR/span/p/tdtd width="75" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="18"p style="text-align:center line-height:normal"spanTHC/span/p/tdtd width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="18"p style="line-height:normal"span style=" font-family:宋体"稳定性灵敏度不高,现场应用少/span/p/tdtd width="133" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="18"p style="text-align:center line-height:normal"span style=" font-family:宋体"固定源在线/span/p/td/trtr style=" height:26px"td width="93" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="26"p style="text-align:center line-height:normal"spanGC-MS/span/p/tdtd width="75" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="26"p style="text-align:center line-height:normal"spanHAPs/spanspan style=" font-family:宋体"、/spanspanTVOCs/spanspan style=" font-family:宋体"、/spanspanVOCs/span/p/tdtd width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="26"p style="line-height:normal"span style=" font-family:宋体"灵敏度高,选择性强,多组分同时测定,烷烃、烯烃、芳香烃、氯代烃、醛、酮、醚、酯、等/spanspan200/spanspan style=" font-family:宋体"多种有机物/span/p/tdtd width="133" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="26"p style="text-align:center line-height:normal"span style=" font-family:宋体"实验室/span/pp style="text-align:center line-height:normal"span style=" font-family:宋体"便携、应急/span/pp style="text-align:center line-height:normal"span style=" font-family:宋体"固定源在线/span/p/td/trtr style=" height:21px"td width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="21"p style="line-height:normal"span style=" font-family:宋体"样品分析时间长,响应速度慢,仪器购置运营成本高/span/p/td/trtr style=" height:37px"td width="93" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="37"p style="text-align:center line-height:normal"spanFTIR/span/pp style="text-align:center line-height:normal"spanOP-FTIR/span/p/tdtd width="75" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="37"p style="text-align:center line-height:normal"spanVOCs/spanspan style=" font-family:宋体"、/spanspanHAPs/span/p/tdtd width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="37"p style="line-height:normal"span style=" font-family:宋体"技术成熟,多种/spanspanVOCs/spanspan style=" font-family:宋体"及/spanspanHAPs/spanspan style=" font-family:宋体"同时监测,现场测定周期短,响应时间快,烷烃、烯烃、芳香烃、氯代烃、醛、酮、醚、酯及/spanspanHCl/spanspan style=" font-family:宋体"、/spanspanHF/spanspan style=" font-family:宋体"、/spanspanCO/spanspan style=" font-family:宋体"、/spanspanNH3/spanspan style=" font-family:宋体"、/spanspanH2S/spanspan style=" font-family:宋体"等/spanspan2000/spanspan style=" font-family:宋体"多种有机物、无机物/span/p/tdtd width="133" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="37"p style="text-align:center line-height:normal"span style=" font-family:宋体"便携、应急/span/pp style="text-align:center line-height:normal"span style=" font-family:宋体"固定源在线/span/p/td/trtr style=" height:20px"td width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="line-height:normal"span style=" font-family:宋体"灵敏度依据各气体吸收强度,部分气体强度较低,仪器成本高/span/p/tdtd width="133" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="text-align:center line-height:normal"span style=" font-family:宋体"厂界在线/span/p/td/trtr style=" height:31px"td width="93" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="31"p style="text-align:center line-height:normal"spanDOAS/span/pp style="text-align:center line-height:normal"spanOP-DOAS/span/p/tdtd width="75" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="31"p style="text-align:center line-height:normal"spanVOCs/spanspan style=" font-family:宋体"、/spanspanHAPs/span/p/tdtd width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="31"p style="line-height:normal"span style=" font-family:宋体"技术成熟,多组分同时测定。现场非接触式直接连续测量,无需预处理,响快,烯烃、芳香烃、氯代烃、醛、酮、醚及/spanspanNH3/spanspan style=" font-family:宋体"、/spanspanH2S/spanspan style=" font-family:宋体"、三甲胺、硫醚、硫醇类/spanspan200/spanspan style=" font-family:宋体"多种气体/span/p/tdtd width="133" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="31"p style="text-align:center line-height:normal"span style=" font-family:宋体"便携/span/pp style="text-align:center line-height:normal"span style=" font-family:宋体"固定源在线/span/pp style="text-align:center line-height:normal"span style=" font-family:宋体"厂界无组织在线/span/p/td/trtr style=" height:21px"td width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="21"p style="line-height:normal"span style=" font-family:宋体"监测灵敏度依据各气体吸收强度/span/p/td/trtr style=" height:20px"td width="93" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="text-align:center line-height:normal"span style=" font-family:宋体"离子迁移谱/span/p/tdtd width="75" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="text-align:center line-height:normal"spanVOCs/spanspan style=" font-family:宋体"组分/span/p/tdtd width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="line-height:normal"span style=" font-family:宋体"灵敏度高,无需真空系统,仪器结构简单,成本低/span/p/tdtd width="133" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="text-align:center line-height:normal"span style=" font-family:宋体"便携、应急/span/p/td/trtr style=" height:20px"td width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="20"p style="line-height:normal"span style=" font-family:宋体"特异性差,/spanspanVOCs/spanspan style=" font-family:宋体"种类少,干扰多/span/p/td/trtr style=" height:10px"td width="93" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="10"p style="text-align:center line-height:normal"spanTDLAS/span/p/tdtd width="75" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="10"p style="text-align:center line-height:normal"spanCH4/span/p/tdtd width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="10"p style="line-height:normal"span style=" font-family:宋体"灵敏度高,选择性强,干扰少,现场非接触式直接连续测量,无需预处理,相应快/span/p/tdtd width="133" rowspan="2" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="10"p style="text-align:center line-height:normal"span style=" font-family:宋体"便携/span/pp style="text-align:center line-height:normal"span style=" font-family:宋体"固定源在线/span/pp style="text-align:center line-height:normal"span style=" font-family:宋体"厂界在线/span/p/td/trtr style=" height:10px"td width="343" style="border: 1px solid rgb(0, 0, 0) padding: 5px " height="10"p style="line-height:normal"span style=" font-family:宋体"一种光源只能监测一种气体/span/p/td/tr/tbody/tablep 此次山东省发布的《DB37/T 3786-2019 环境空气 硫化氢等气态污染物的测定开放光程紫外吸收光谱法》规定了测定环境空气中硫化氢、氨气、苯、甲硫醚、二甲苯、甲硫醇、苯乙烯、甲醛、甲苯、二甲二硫、三甲胺、二硫化碳12种气态污染物的开放光程紫外吸收光谱法。本标准适用于环境空气中上述气态污染物的预警、应急监测测定。/pp 标准全文:a href="https://www.instrument.com.cn/download/shtml/948251.shtml" target="_blank"DB37/T 3786-2019 环境空气 硫化氢等气态污染物的测定开放光程紫外吸收光谱法/a/p