Abstract
This paper reports proton mass spectrometry data on aromatic volatile organic compounds (VOCs) (benzene, toluene, phenol, styrene, xylene, and propylbenzene) obtained in different Russian regions along the Trans-Siberian Railway from Moscow to Vladivostok, based on expedition data retrieved using the TRO-ICA-12 mobile laboratory in the summer of 2008. The contribution of aromatic VOCs to ozone formation in the cities and regions along the measurement route has been estimated quantitatively. The greatest contribution of aromatic VOCs to ozone formation is characteristic of large cities along the Trans-Siberian Railway (up to 7.5 ppbv O3) specified by the highest concentrations of aromatic VOCs (1–1.7 ppbv) and nitrogen oxides (>20 ppbv). The results obtained are indicative of a considerable contribution (30–50%) of anthropogenic emissions of VOCs to photochemical ozone generation in the large cities along the Trans-Siberian Railway in hot and dry weather against the background of a powerful natural factor such as isoprene emissions controlling the regional balance of ground-level ozone in warm seasons.
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Original Russian Text © E.V. Berezina, K.B. Moiseenko, A.I. Skorokhod, N.F. Elansky, I.B. Belikov, 2017, published in Doklady Akademii Nauk, 2017, Vol. 474, No. 3, pp. 356–360.
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Berezina, E.V., Moiseenko, K.B., Skorokhod, A.I. et al. Aromatic volatile organic compounds and their role in ground-level ozone formation in Russia. Dokl. Earth Sc. 474, 599–603 (2017). https://doi.org/10.1134/S1028334X1705021X
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DOI: https://doi.org/10.1134/S1028334X1705021X