Research on measurement of urban C8H8 by open optical path detection system

Rui Xue; Mingxuan Li; Jiatong Shi; Xiaohong Han; Han Zhang

doi:10.1117/12.2537698

20 November 2019 Research on measurement of urban C₈H₈ by open optical path detection system

Rui Xue, Mingxuan Li, Jiatong Shi, Xiaohong Han, Han Zhang

Proceedings Volume 11191, Advanced Sensor Systems and Applications IX; 1119112 (2019) https://doi.org/10.1117/12.2537698
Event: SPIE/COS Photonics Asia, 2019, Hangzhou, China

Abstract

As a Class 2B carcinogen, C₈H₈ has great hidden danger to human health. Domestic research on the detection of styrene in the atmosphere is relatively lacking. Therefore, this article determined proper retrieval range of wavelength and a method to eliminate interference based on the absorption feature in the UV region. An open optical path detection system was set up based on the principle of ultraviolet differential absorption spectroscopy. The detection limit of C₈H₈ is 9.0μg/m³ when the optical path reaches 100m. The outdoor field measurement of C₈H₈ was carried out in Binjiang District of Hangzhou, indicating the daily average variation of styrene gas. The results showed that the maximum concentration of C₈H₈ is 60.6μg/m³, the minimum concentration is 38.2μg/m³ and the average concentration is 53.5μg/m³.

Citation Download Citation

Rui Xue, Mingxuan Li, Jiatong Shi, Xiaohong Han, and Han Zhang "Research on measurement of urban C₈H₈ by open optical path detection system", Proc. SPIE 11191, Advanced Sensor Systems and Applications IX, 1119112 (20 November 2019); https://doi.org/10.1117/12.2537698

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