Abstract

Ship emissions are a growing concern, especially in coastal areas, for potential impacts on human healthand climate. International mitigation strategies to curb these emission, based on low-sulphur contentfuels, have proven useful to improve local air quality. However, the effect on climate forcing is lessobvious. Detailed information on the influence of shipping to particles of different sizes is needed toinvestigate air quality and climate interaction. In this work, the contributions of maritime emissions toatmospheric concentrations of gaseous pollutants (NO, NO2, SO2, and O3) and of particles (sizes from0.009 mm to 30 mm) were investigated considering manoeuvring (arrival and departure of ships) andhotelling phases (including loading/unloading activities). Results showed that the size distributions ofshipping contributions were different for the two phases and could be efficiently described, usingmeasured data, considering four size-ranges. The largest contribution to particles concentration wasobserved for Dp < 0.25 mm, however, a secondary maximum was observed at Dp ¼ 0.35 mm. The minimumcontribution was observed at Dp around 0.8e0.9 mm with a negligible contribution from hotellingfor size range 0.4e1 mm. The comparison of 2012 and 2014 datasets showed no significant changes ofgaseous and particulate pollutant emissions and of the contribution to particle mass concentration.However, an increase of the contribution to particle number concentration (PNC) was observed. Resultssuggested that harbour logistic has a relevant role in determining the total impact of shipping on airquality of the nearby coastal areas. Additionally, future policies should focus on PNC that represents animportant fraction of emissions also for low-sulphur fuels. DOAS remote sensing proved a useful tool todirectly measure NO2 and SO2 ship emissions giving estimates comparable with those of emission inventoryapproach.

Autore Pugliese

• Donateo Antonio , Cesari Daniela , Contini Daniele

Tutti gli autori

• Merico E.; Donateo A.; Gambaro A.; Cesari D.; Gregoris E.; Barbaro E.; Dinoi A.; Giovanelli G.; Masieri S.; Contini D.

Titolo volume/Rivista

Atmospheric environment

Anno di pubblicazione

2016

ISSN

1352-2310

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile