| 大气硝酸测量方法研究进展 |
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| 引用本文： | 安士健,马志强,林伟立.大气硝酸测量方法研究进展[J].中国环境监测,2022,38(2):67-78. |
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| 作者姓名： | 安士健 马志强 林伟立 |
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| 作者单位： | 中央民族大学, 民族地区生态环境国家民委重点实验室, 北京 100081;中央民族大学生命与环境科学学院, 北京 100081;京津冀环境气象预报预警中心, 北京 100089 |
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| 基金项目： | 国家自然科学基金资助项目(91744206,21876214) |
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| 摘 要： | 大气中硝酸(HNO3)的生成是排放到空气中氮氧化物(NOx)的主要沉降途径,对降水酸化、二次细颗粒物中硝酸盐的形成以及在研究光化学污染和霾形成等大气复合污染过程之间的联系中具有重要作用.获得高时间分辨率、准确的大气HNO3测量数据对研究和认识大气中NOx的循环机理是十分必要和迫切的.大气中的HNO3浓度低且具有很强的吸...
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| 关 键 词： | 大气硝酸 测量方法 综述 |
| 收稿时间： | 2021/3/22 0:00:00 |
| 修稿时间： | 2021/12/10 0:00:00 |
Review on the Measurement Methods of Gaseous Nitric Acid |
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| AN Shijian,MA Zhiqiang,LIN Weili.Review on the Measurement Methods of Gaseous Nitric Acid[J].Environmental Monitoring in China,2022,38(2):67-78. |
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| Authors: | AN Shijian MA Zhiqiang LIN Weili |
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| Institution: | Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), Beijing 100081, China;College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China;Beijing-Tianjin-Hebei Environmental Meteorological Forecast and Warning Center, Beijing 100089, China |
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| Abstract: | Atmospheric nitric acid (HNO3) is the main sink of nitrogen oxides (NOx) emitted into the air.It plays an important role in the acidification of precipitation,the formation of nitrates in the secondary fine particles,and the atmospheric compound pollution process of photochemical pollution and haze formation.It is very necessary and urgent to obtain high time-resolution and accurate atmospheric nitric acid measurement data to study and understand the circulation mechanism of nitrogen oxides in the atmosphere.Due to its low concentration in the atmosphere,its strong adsorption on surfaces,and being highly influenced by the thermal equilibrium process of ammonium nitrate present in particulate matter,the accurate and high-time resolution nitric acid measurement has always been a challenge for modern atmospheric measurement technology.This study reviews the factors influencing the accuracy of nitric acid measurement,the advantages and disadvantages of different HNO3 measurement methods,and their application prospects.Under the quickly development and with the advantages in detection limit and measurement stability of laser measurement technique on NO2,the method of quickly converting HNO3 to NO2 for indirect measurement of HNO3 has received more more attention by many researchers. |
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| Keywords: | gaseous nitric acid measurement methods review |
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