Liu Hao, Wang Hui-xiang
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Science and Engineering, Peking University, Beijing 100871, China.
Huan Jing Ke Xue. 2013 Sep;34(9):3352-7.
The observation was conducted in Mangdang Mountain, Nanping, Fujian Province in the spring of 2009. Ozone, HONO, HCHO and H2O2 which are regarded as the sources of .OH and other atmospheric components were measured. Mixing ratios of O3, HCHO, HONO and H2O2 were determined to be 4.96 x 10(-8), 3.97 x 10(-10), 2. 53 x 10(-10) and 1.18 x 10(10) respectively, which were lower than the previous observation at the rural areas in Northern China. Using CMAQ, the contribution factors to the .OH of O3, HCHO, HONO, and H2O2 were calculated to be 57.0%, 7.7%, 34.9% and 0.4% respectively. The photolysis of O3 was the most important source of OH radicals in the atmosphere. The contribution factors of O3, HCHO, and H2O2 had a single peak during 12:00-13:00 local time. For HONO, the contribution factor showed fluctuations during the daytime, unlike the human living environment in which it peaked in the morning.
该观测于2009年春季在福建省南平市茫荡山进行。对被视为·OH来源的臭氧、HONO、HCHO和H2O2以及其他大气成分进行了测量。臭氧、HCHO、HONO和H2O2的混合比分别测定为4.96×10⁻⁸、3.97×10⁻¹⁰、2.53×10⁻¹⁰和1.18×10⁻¹⁰，低于此前在中国北方农村地区的观测值。利用CMAQ计算得出，臭氧、HCHO、HONO和H2O2对·OH的贡献因子分别为57.0%、7.7%、34.9%和0.4%。臭氧的光解是大气中OH自由基的最重要来源。臭氧、HCHO和H2O2的贡献因子在当地时间12:00 - 13:00出现单峰。对于HONO，其贡献因子在白天呈现波动，这与人类生活环境中其在早晨达到峰值不同。
