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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union

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https://doi.org/10.5194/amt-2017-267
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
Research article
30 Aug 2017
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Measurement Techniques (AMT).
Standard source of atmospheric black carbon aerosol generated from ultrasonic spray of BC suspension
Ruchen Zhu1, Huixiang Wang1, Xiaoyan Wang2, and Hao Liu3 1College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
2China National Environmental Monitoring Center, Beijing 100012, China
3Yangtze River Water Resources Protection Bureau, Wuhan 430010, China
Abstract. Black carbon (BC) aerosol has strong radiative forcing and plays an important role in global climate change and human health. A generator with low levels of BC-air is developed in this study for researchers to calibrate BC monitors. Ultrasonic nozzle is applied to atomize BC suspension to produce quantificational BC-air samples which can be used directly as a standard source of BC. Membrane test conducted by balance is used to check up its feasibility. Results show that the relationship of weight increment of membrane and target concentration of BC-air have very good linearity. This confirms that the ultrasonic spray system is a good source to generate standard concentration of BC-air. The device has good feasibility in the BC concentrations range of 0–200 μg m−3. Multi Angle Absorption Photometer (MAAP) is used to detect the concentration of BC-air generated by the ultrasonic spray of suspension. Target concentrations generated by the device accord with the measured data of MAAP.

Citation: Zhu, R., Wang, H., Wang, X., and Liu, H.: Standard source of atmospheric black carbon aerosol generated from ultrasonic spray of BC suspension, Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2017-267, in review, 2017.
Ruchen Zhu et al.
Ruchen Zhu et al.
Ruchen Zhu et al.

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Short summary
In this work, we evaluated a source of black carbon aerosol generated by ultrasonic spray which shows good performance in our experiments. It has good feasibility in the BC concentrations range of 0–200 μg m−3. This generator can be used as a standard source for black carbon monitoring in atmosphere.
In this work, we evaluated a source of black carbon aerosol generated by ultrasonic spray which...
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