What impact do ship emissions have on air quality?
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Ship emissions have a significant impact on air quality, contributing to the concentration of atmospheric pollutants such as PM2.5, SO2, NO2, and O3. These emissions can have adverse health effects and are a major contributor to decreased air quality. The transport of ship-emitted pollutants by onshore winds can exacerbate the impact on air pollutant concentrations in coastal regions . Ship emissions have been found to increase PM2.5 concentrations over the ocean and in coastal areas, as well as significantly contribute to SO2 concentrations in coastal states . The impact of ship emissions on O3 concentrations is not uniform, with both positive and negative effects observed depending on the location and meteorological conditions . Ship emissions also contribute to the formation of secondary organic aerosols (SOA) and ultrafine particles (UFP) in coastal cities, which can further impact air quality and human health .
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15 May 2023 | Ship emissions have a significant impact on air quality, particularly in harbour cities, as they contribute to the emissions of fine particulate matter (PM2.5), secondary organic aerosols (SOA), and ultrafine particles (UFP). |
| Ship emissions have an adverse effect on air quality in coastal regions, particularly in the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) in China. | |
02 May 2023 | Ships emissions increase concentrations of fine particulate matter (PM2.5), sulfur dioxide (SO2), and nitrogen dioxide (NO2), and have varying impacts on ozone (O3) concentrations. |
| Ship emissions have a negative impact on air quality as they emit pollutants such as PM, SOx, and NOx, which contribute to decreased air quality and have adverse health effects. | |
| Ship emissions have a severe impact on regional air quality and the health of residents in China's Bohai Bay area. |
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