用于大气NO2测量的低成本传感器:一篇综述
Coşkun Ayvaz1, Ülkü Alver Şahin2, Prashant Kumar3
1Department of Environmental Engineering, Faculty of Engineering, Istanbul University-Cerrahpaşa, Istanbul, Turkiye; Global Centre for Clean Air Research (GCARE), School of Engineering, Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH, Surrey, United Kingdom.
Environmental pollution (Barking, Essex : 1987)
|May 11, 2025
概括
低成本传感器 (LCS) 对城市二氧化 (NO2) 污染的监测非常有希望. 电化学传感器通常性能优于金属氧化物传感器,但性能受环境因素的影响.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 传感器技术 传感器技术
背景情况:
- 二氧化 (NO2) 是一个重要的城市空气污染物,需要有效的监测策略.
- 化学发光方法是二氧化测量的标准,但低成本传感器 (LCS) 为广泛部署提供了新的可能性.
- 与参考方法对LCS性能进行评估对于可靠的NO2监测至关重要.
研究的目的:
- 审查和评估低成本传感器 (LCS) 在城市环境中测量二氧化 (NO2) 的性能.
- 确定比较LCS与参考NO2监测方法的研究.
- 分析影响LCS性能的因素,并建议改进.
主要方法:
- 在Scopus,Web of Science,PubMed和ScienceDirect进行了系统的文献搜索.
- 65项符合特定标准的初级研究 (现实世界数据,传感器的同位) 被选择进行分析.
- 提取了传感器类型,性能评估技术和影响因素的数据.
主要成果:
- 主要使用的是电化学 (EC) LCS (95%),通常性能优于金属氧化物半导体 (MOS) 传感器.
- 机器学习和回归技术是评估传感器性能的常见方法.
- 环境温度和湿度对LCS测量有显著影响;与臭氧共同测量是经常发生的 (79%).
结论:
- 液压控制系统,特别是EC类型,为城市NO2监测提供了可行的选择,但需要进一步开发以减轻环境干扰.
- 提高LCS可靠性可以帮助决策者识别污染源,检测热点和分析趋势.
- 未来的研究应该专注于提高传感器对外部因素的稳定性,以便更准确地测量NO2.
相关概念视频
01:13Gas Chromatography: Overview of Detectors
Detectors in gas chromatography (GC) help identify and quantify the components of a mixture by translating chemical properties into measurable signals, which are displayed on a chromatogram. Detectors can be categorized into two main types: destructive and non-destructive.
A non-destructive detector allows a sample to be analyzed without altering or consuming it, meaning the sample can be collected after detection for further analysis. Examples include thermal conductivity detectors and...
A non-destructive detector allows a sample to be analyzed without altering or consuming it, meaning the sample can be collected after detection for further analysis. Examples include thermal conductivity detectors and...
01:19Gas Chromatography: Types of Detectors-II
In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...