Ground-level O3 pollution and its impacts on food crops in China: A review

Concentration- and flux-based ozone dose–response relationships for five poplar clones grown in North China

“…As one of the representative deciduous broadleaved tree species of plantations, poplar is under the risk of O 3 damage due to current ground-level O 3 pollution in China (Feng et al, 2015;Zhang et al, 2012). The five poplar clones used in the present study are widely planted in China as plantations, urban landscaping, farmland shelterbelts, as well as industrial timber (Jia et al, 2013).…”

“…Tropospheric ozone (O 3 ) is an important phytotoxic air pollutant and a significant greenhouse gas formed by photochemical reactions among nitrogen oxides, volatile hydrocarbons and carbon monoxide in the atmosphere (Dumont et al, 2014;Feng et al, 2015). The background O 3 level over the mid latitudes of the Northern Hemisphere has increased continuously between 0.5% and 2% per year over the last 30 years (Vingarzan, 2004).…”

Assessing the effects of ambient ozone in China on snap bean genotypes by using ethylenediurea (EDU)

“…With such high ozone levels occurring recurrently year after year, Beijing area is undoubtedly an important hotspot for this pollutant, only comparable (but above) to different parts of India Singh and Agrawal, 2011;Oksanen et al, 2013;Pandey et al, 2014;Singh et al, 2014), and with concentrations much above other parts of the world. In the short term, this situation is expected to last for years, and even to worsen as, contrary to USA and Europe, ozone precursors (mainly NO x ) are currently increasing in China at an annual rate of 5% (Feng et al, 2015).…”

“…wheat, rice, in Open-Top Chambers and in Free Air Ozone Enrichment Systems (Feng et al, 2015). So far, only one study has focused on the effects of ambient ozone levels on individual cultivars of wheat and rice (Wang et al, 2007).…”

“…In China, massive fossil fuel consumption in the last three decades has produced a lot of nitrogen oxides and volatile organic compounds, and thus ozone concentrations have increased significantly (Feng et al, 2015;Wang et al, 2006). In most parts of China, mean daily 8 h (9:00e17:00) ozone concentration over 50e60 ppb have been documented (Feng et al, 2015;Jiang et al, 2012;Wang and Mauzerall, 2004).…”