| Autor: |
Gobbi GP; Institute of Atmospheric Sciences and Climate, ISAC-CNR, Via Fosso del Cavaliere, 100, 00133 Rome, Italy. Electronic address: g.gobbi@isac.cnr.it., Di Liberto L; Institute of Atmospheric Sciences and Climate, ISAC-CNR, Via Fosso del Cavaliere, 100, 00133 Rome, Italy., Barnaba F; Institute of Atmospheric Sciences and Climate, ISAC-CNR, Via Fosso del Cavaliere, 100, 00133 Rome, Italy. |
| Jazyk: |
angličtina |
| Zdroj: |
The Science of the total environment [Sci Total Environ] 2020 Jun 01; Vol. 719, pp. 134984. Date of Electronic Publication: 2019 Nov 02. |
| DOI: |
10.1016/j.scitotenv.2019.134984 |
| Abstrakt: |
Current shipping activities employ about 3% of the world-delivered energy. Most of this energy is conveyed by diesel engines. In Europe, release of NO x and particulate matter (PM) from shipping is expected to equal the road-transport one by the year 2020. This paper addresses a typical central Mediterranean city-port condition to evaluate the relative contribution of shipping activities to the local air quality. A 3-year long air quality dataset collected at the boundary between the port of Civitavecchia (the major port in central Italy) and the city itself was analyzed to evaluate the long-term, relative contribution of the port and of the city at determining the loads of EU-regulated pollutants (NO 2 , PM 10 and SO 2 ). In addition, black carbon and ultrafine-to-coarse particles data collected along a short-term, intensive campaign were used to assess the port's role at emitting these unregulated pollutants. Cross-analysis of the measurements, allowed to assess which shipping-related activities and port's sectors represent the principal emitters. At the city-port boundary, the annual share of regulated pollutants originating in the port area by shipping and ground movements is of 33% for PM 10 , 43% for NO 2 , and 60% for SO 2 . Analysis of non-regulated pollutants shows the in-port, high polluting potential of some ship categories, in particular those employing low-sulfur but poorly refined oils. These conditions appear to be more often associated with Ro-Ro passenger ships. Piers closest to the Civitavecchia urban settlements are also observed to host the largest emissions. Meteorology and location of the piers with respect to residential areas are confirmed to govern the port's share at impacting the city air quality. Even though air quality thresholds for regulated pollutants are not exceeded in Civitavecchia, constant consideration of an enlarged set of environmental variables should drive actions implemented to mitigate the port's impact onto the nearby city's air quality.
(Copyright © 2019 The Author(s). Published by Elsevier B.V. All rights reserved.) |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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Full Text from ScienceDirect