Abstract
Background: In February 2017, some buildings of La Pineda (Catalonia, NE Spain) a rather small town, located near to the Tarragona harbor, were affected by a contamination episode that dirtied external walls, windows, doors and floors of these buildings with a black dust. This study was aimed at assessing the origin of the black dust appeared in the buildings. Methods: Black dust samples were collected in the railings of balconies, windows, and exterior doors of two buildings in La Pineda, as well as in the ground of the breakwater of the Tarragona harbor, at few meters from the open air coal storage area. Elemental analysis of the black dust (C, N, H and S) was performed. A daily sample of PM10 was also collected and analyzed for five consecutive days. Results: The total carbon content of the collected dust was 25.8%, 29.4% and 33.9% in the two buildings of La Pineda and the breakwater, respectively. In turn, the contribution of carbon from carbonates was 0.0%, 1.3% and 5.1%, in the samples of the two buildings and the breakwater, respectively. PM10 showed levels between 18 and 39 µg/m3, with mean and median levels of 29 µg/m3. Conclusion: The elemental analysis indicated that the two black dust samples collected in the two buildings of La Pineda were similar to the sample collected at the breakwater of the port of Tarragona, showing a common origin: The bulk coal storage area of Tarragona harbor. Because information on the human health risks derived from the important activities conducted in the port of Tarragona is currently non-existent, an exhaustive assessment of all pollutants involved in the activities of the port is strongly recommended.
Highlights
IntroductionThe presence of a highway and various roads with a heavy traffic influences enormously the environment of the area, in which a considerable number of industries are operating
Tarragona is an important industrial city located in the South of Catalonia, Spain
A few days after the contamination episode (February 20), black dust samples were obtained in the railings of balconies, windows, and exterior doors of two buildings in La Pineda, as well as in the ground of the breakwater of the Tarragona harbor, a few meters from the open air coal storage area (Fig. 1)
Summary
The presence of a highway and various roads with a heavy traffic influences enormously the environment of the area, in which a considerable number of industries are operating. These include currently a big oil refinery (Repsol Petróleo, S.A.), as well as a number of chemical and petrochemical industries. Address correspondence to this author at the Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007. In February 2017, some buildings of La Pineda (Catalonia, NE Spain) a rather small town, located near to the Tarragona harbor, were affected by a contamination episode that dirtied external walls, windows, doors and floors of these buildings with a black dust. This study was aimed at assessing the origin of the black dust appeared in the buildings
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