Till sidans topp

Sidansvarig: Webbredaktion
Sidan uppdaterades: 2012-09-11 15:12

Tipsa en vän
Utskriftsversion

Mass, black carbon and el… - Göteborgs universitet Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

Mass, black carbon and elemental composition of PM2.5 at an industrial site in Kingston, Jamaica

Artikel i vetenskaplig tidskrift
Författare Johan Boman
Samuel Mwaniki Gaita
Publicerad i Nuclear Instruments and Methods in Physics Reseach B
Volym 363
Sidor 131–134
ISSN 0168-583X
Publiceringsår 2015
Publicerad vid Institutionen för kemi och molekylärbiologi
Sidor 131–134
Språk en
Länkar dx.doi.org/10.1016/j.nimb.2015.08.0...
Ämnesord PIXE, Atmospheric aerosols, Elements, Jamaica
Ämneskategorier Spektroskopi, Tungmetaller och övriga metaller

Sammanfattning

An estimated three million premature deaths yearly can be attributed to ambient particulate pollution, a majority of them in low and middle income countries. The rapid increase in the vehicle fleet in urban areas the Caribbean countries have experienced contributes to the bad urban air quality. In this study aerosol particles with an aerodynamic diameter smaller than, or equal to, 2.5 µm (PM2.5) were collected over 24 hours at a site along Spanish Town Road, one of the main commuter roads in Kingston, Jamaica. The study was aimed at determining the mass, black carbon and elemental composition of PM2.5 in Kingston. Although lead in the gasoline was phased out in the year 2000, up to 5000 ppm of sulfur is still allowed in the diesel, leading to an extensive secondary particle formation. PM2.5 samples were collected using a Mini-vol sampler between 12 December 2013 and 21 March 2014 and analyzed for trace elements using the Particle-Induced X-ray Emission (PIXE) facility at Lund University, Sweden. Concentrations of Si, S, Cl, K, Ca, Ti, V, Cr, Fe, Ni, Cu, Zn, Br and Pb were determined. Elemental concentrations showed a high temporal variation and the average PM2.5 concentration (44 µg m-3) is higher than the air quality standards that apply in the European Union (25 µg m-3) and in the USA (12 µg m-3). From this we can conclude that the air quality in the area is severely influenced by PM2.5 pollution and that there is a need to develop plans for improving the air quality in Kingston city.

Sidansvarig: Webbredaktion|Sidan uppdaterades: 2012-09-11
Dela:

På Göteborgs universitet använder vi kakor (cookies) för att webbplatsen ska fungera på ett bra sätt för dig. Genom att surfa vidare godkänner du att vi använder kakor.  Vad är kakor?