|Titolo||Ozone levels in European and USA cities are increasing more than at rural sites, while peak values are decreasing|
|Tipo di pubblicazione||Articolo su Rivista peer-reviewed|
|Anno di Pubblicazione||2014|
|Autori||Paoletti, E., De Marco Alessandra, Beddows D.C.S., Harrison R.M., and Manning W.J.|
|Parole chiave||Air Pollutants, Air pollution, Air quality, air quality standard, article, atmospheric pollution, Cities, Environmental monitoring, environmental protection, Environmental Protection Agency, Europe, European environment agencies, Ground-level ozone, Health Care, health hazard, Human health, Humans, Ozone, pollution monitoring, Protection of human health, Protection of vegetation, Risk assessment, rural area, rural atmosphere, troposphere, Tropospheric ozone, United States, Urban air pollution, Urban and rural, Urban and rural sites, urban area, Urban growth, urban pollution, urban rural difference, US Environmental Protection Agency, Vegetation|
Ground-level ozone (O3) levels are usually lower in urban centers than nearby rural sites. To compare trends in O3 levels during the period 1990-2010, we obtained monitoring data from paired urban and rural sites from the European Environment Agency and the US Environmental Protection Agency. Ozone peaks decreased at both station types, with no significant differences between urban and rural stations. Ozone annual averages increased at both urban and rural sites, with a faster rate of increase for urban centers. The overall trend was for convergence between urban and rural O3 data. Ozone levels exceeded the criteria established for the protection of human and vegetation health at both urban and rural sites. © 2014 Elsevier Ltd. All rights reserved.
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