TY - JOUR ID - 10.1016/j.jes.2020.06.038 TI - Hydroxyl, hydroperoxyl free radicals determination methods in atmosphere and troposphere AU - Guoying Wang AU - Yves Iradukunda AU - Gaofeng Shi AU - Pascaline Sanga AU - Xiuli Niu AU - Zhijun Wu VL - 33 IS - 1 PB - SP - 324 EP - 335 PY - JF - Journal of Environmental Sciences JA - J. Environ. Sci. UR - http://www.jesc.ac.cn/jesc_en/ch/reader/view_abstract.aspx?file_no=S1001074220303028&flag=1 KW - Corresponding authors.;Atmosphere;Determination method;Hydroxyl radical;Hydroperoxyl radical;Troposphere AB - The hydroxyl radical (•OH) has a crucial function in the oxidation and removal of many atmospheric compounds that are harmful to health. Nevertheless, high reactivity, low atmospheric abundance, determination of hydroxyl, and hydroperoxyl radical's quantity is very difficult. In the atmosphere and troposphere, hydroperoxyl radicals (HO2) are closely demanded in the chemical oxidation of the troposphere. But advances in technology have allowed researchers to improve the determination methods on the research of free radicals through some spectroscopic techniques. So far, several methods such as laser-induced fluorescence (LIF), high-performance liquid chromatography (HPLC), and chemical ionization mass spectroscopy have been identified and mostly used in determining the quantity of hydroxyl and hydroperoxyl radicals. In this systematic review, we have advised the use of scavenger as an advance for further researchers to circumvent some of these problems caused by free radicals. The primary goal of this review is to deepen our understanding of the functions of the most critical free radical (•OH, HO2) and also understand the currently used methods to quantify them in the atmosphere and troposphere. ER -