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EU: Shipping emmission the biggest culprit for ozone pollution
EU funded QUATIFY project issued a report estimating the impact of road, aircraft and shipping emissions on the Earth's atmosphere.
In its report, QUANTIFY explains how ozone pollution in the troposphere (the lowest atmospheric level) wreaks havoc on people's well-being and burns large holes in farmers' pockets. But that's not all. Ozone pollution also acts as a strong greenhouse gas (GHG), and while it may occur naturally, sunlight and pollutants give it a helping hand.
The QUANTIFY partners applied six different atmospheric chemistry models in order to estimate the impact of emissions from road transport, aviation and shipping on ozone levels. They also estimated the impact on the hydroxyl radical OH, which is commonly referred to as the 'detergent' of the troposphere because it reacts with and helps remove many pollutants and greenhouse gases like carbon dioxide.
The biggest culprit in this headache is shipping emissions. According to the partners, these emissions have the biggest effect on the lower troposphere and are responsible for more than half of the transport-induced changes in the ozone in various regions.
In a nutshell, emissions from ships have the largest impact on global OH levels in the lower troposphere, and thus the 'largest impact on reducing methane lifetime as they are released in relatively clean regions over the sub-tropical and tropical oceans where OH is highly sensitive to traffic emissions', the data showed.
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In its report, QUANTIFY explains how ozone pollution in the troposphere (the lowest atmospheric level) wreaks havoc on people's well-being and burns large holes in farmers' pockets. But that's not all. Ozone pollution also acts as a strong greenhouse gas (GHG), and while it may occur naturally, sunlight and pollutants give it a helping hand.
The QUANTIFY partners applied six different atmospheric chemistry models in order to estimate the impact of emissions from road transport, aviation and shipping on ozone levels. They also estimated the impact on the hydroxyl radical OH, which is commonly referred to as the 'detergent' of the troposphere because it reacts with and helps remove many pollutants and greenhouse gases like carbon dioxide.
The biggest culprit in this headache is shipping emissions. According to the partners, these emissions have the biggest effect on the lower troposphere and are responsible for more than half of the transport-induced changes in the ozone in various regions.
In a nutshell, emissions from ships have the largest impact on global OH levels in the lower troposphere, and thus the 'largest impact on reducing methane lifetime as they are released in relatively clean regions over the sub-tropical and tropical oceans where OH is highly sensitive to traffic emissions', the data showed.
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