Abstract：As a key role in the acid-deposition and the generation of secondary particle matter (PM), measurement of the concentration of atmospheric ammonia in urban area has been attracting the scientists’ interests nowadays. After studying the special absorption features of ammonia in short UV wavelength range, detailed concernful issues were put forward in the present paper. The decision of using xenon lamp as the light source was made after the evaluation of measurement of light spectroscopy. Retrieval wavelength band for NH3 was fixed from 204 to 214 nm and optimal method of deducting other interferential gases was also shown. A home-made open-path DOAS (OP-DOAS) system was set up for the measurement of the concentration of atmospheric NH3. The detection limit of such system was calculated with the typical noise level as low as 0.33 μg·m-3 with the optical path 228 m. Through field experiment in Guangzhou city, such a system can be competent for the online and high time-resolution monitoring of the concentration of atmospheric ammonia. With a significant diurnal variation, the atmospheric ammonia changed from 0.83 to 3.11 μg·m-3 with the mean value 1.59 μg·m-3. The representative character of the diurnal variation is that the concentration of NH3 peaks during night while drops to bottom in the daytime. After the error analysis procedure, typical measurement accuracy of such OP-DOAS system was within 10%.
王 界，谢品华*，秦 敏，凌六一，叶丛雷，刘建国，刘文清 . 开放光路差分吸收光谱技术测量城市大气氨的研究[J]. 光谱学与光谱分析, 2012, 32(02): 476-480.
WANG Jie, XIE Pin-hua*, QIN Min, LING Liu-yi, YE Cong-lei, LIU Jian-guo, LIU Wen-qing . Study on the Measurement of Ambient Ammonia in Urban Area Based on Open-Path DOAS Technique . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(02): 476-480.
[1] Asman W A H, Sutton M A, Schjorring J K. New Phytologist, 1998, 139(1): 27. [2] Fangmeier A, Hadwigerfangmeier A, Vandereerden L, et al. Environmental Pollution, 1994, 86(1): 43. [3] Erisman J W, Hensen A, Mosquera J, et al. Environmental Pollution, 2005, 135(3): 419. [4] Ferm M. Nutrient Cycling in Agroecosystems, 1998, 51(1): 5. [5] Lee H S, Wadden R A, Scheff P A. Atmospheric Environment. Part A. General Topics, 1993, 27(4): 543. [6] Hoek G, Mennen M G, Allen G A, et al. Atmospheric Environment, 1996, 30(18): 3141. [7] Brook J R, Wiebe A H, Woodhouse S A, et al. Atmospheric Environment, 1997, 31(24): 4223. [8] Matsumoto M, Okita T. Atmospheric Environment, 1998, 32(8): 1419. [9] Thoni L, Seitler E, Blatter A, et al. Journal of Environmental Monitoring, 2003, 5(1): 96. [10] Khemani L T, Momin G A, Singh G. Pure and Applied Geophysics, 1987, 125(1): 167. [11] Li Y Q, Schwab J J, Demerjian K L. Journal of Geophysical Research-Atmospheres, 2006, 111(D10)：1. [12] Whitehead J D, Longley I D, Gallagher M W. Water Air and Soil Pollution, 2007, 183(1-4): 317. [13] Huszár H, Pogány A, Bozóki Z, et al. Sensors and Actuators B: Chemical, 2008, 134(2): 1027. [14] von Bobrutzki K, Braban C F, Famulari D, et al. Atmospheric Measurement Techniques, 2010, 3(1): 91. [15] LIANG Bao-sheng, ZHU Tong(梁宝生，朱 彤). Chinese Journal of Analytical Chemistry(分析化学), 2005, 33(8): 1192. [16] Ferlemann F, Bauer N, Fitzenberger R, et al. Appl. Opt., 2000, 39(15): 2377. [17] Pundt I, Mettendorf K U, Laepple T, et al. Atmospheric Environment, 2005, 39(5): 967. [18] LI Su-wen, LIU Wen-qing, XIE Pin-hua, et al(李素文，刘文清，谢品华，等). Journal of Environmental Sciences(环境科学进展), 2008, 20(1): 45. [19] Platt U, Rateike M, Junkermann W, et al. Journal of Geophysical Research, 1988, 93(D5): 5159. [20] Edner H, Ragnarson P, Spannare S, et al. Applied Optics, 1993, 32(3): 327. [21] Gall R, Perner D, Ladsttter-Weienmayer A. Fresenius Journal of Analytical Chemistry, 1991, 340(10): 646. [22] Mount G H, Rumburg B, Havig J, et al. Atmospheric Environment, 2002, 36(11): 1799. [23] QI Feng, LIU Wen-qing, ZHANG Yu-jun, et al(齐 锋，刘文清，张玉钧，等). Acta Photonica Sinica(光子学报), 2002, 32(10): 1234. [24] Chen F Z, Judge D L, Wu C Y R, et al. Planetary and Space Science, 1999, 47(1-2): 261. [25] Manap H, Dooly G, O’Keeffe S, et al. Sensors and Actuators B: Chemical, 2009, In Press, Corrected Proof. [26] Thompson B A, Harteck P, Reeves J, R. R. Journal of Geophysical Research, 1963，(68): 6431. [27] Jenouvrier A, Coquart B, Merienne M F. Journal of Atmospheric Chemistry, 1996, 25(1): 21. [28] Mellqvist J, Axelsson H, Rosén A. Journal of Quantitative Spectroscopy and Radiative Transfer, 1996, 56(2): 225. [29] ZHOU Bin, LIU Wen-qing, QI Feng, et al(周 斌，刘文清，齐 锋，等). Acta Optica Sinica(光学学报), 2001, 22(8): 957. [30] Stutz J, Platt U. Appl. Opt., 1996, 35(30): 6041.
