『Abstract
　The study area is highly industrialized, with businesses involved in the non-metal mineral products sector and ceramic industries (colors, frits and enamel manufacturing) standing out. Air quality evaluation was performed regarding atmospheric particles (PM10 fraction) and Pb in a Spanish coastal area during 2001 and 2002 in order to compare these values with other areas in the Mediterranean basin. Once the samples were collected, their PM10 fraction concentration levels were determined gravimetrically. A Pb analysis in air pollution filters was carried out by ICP-MS. The seasonal and weekly variabilities of these contaminants were also studied, with the objective of being able to explain their origin and thus minimize their possible damaging effects. A similar evolution of PM10 and Pb was observed in both years of the study. Higher PM10 concentrations have been detected during the months of June and July, lower values between March-May, August and October-December, and intermediate values in January and February. A similar tendency has been observed by other authors in European industrialized cities. Regarding Pb, the monthly mean remains constant during the entire year. In the study area, Pb represents 0.6％ as a mean of the total PM10 mass, with a variation range between 0.1 and 5.1％. The major crystalline phases in PM10 were quartz, calcite, dolomite, illite, kaolinite and feldspars.

Keywords: Air pollution; PM10; Pb; Mineralogy; Seasonal evolution; Weekly evolution; Coastal area; Mediterranean basin』

Introduction
Description of the study area
　Geology
　Socio-economic aspects
Sampling conditions
Determination of PM10 concentration levels and mineralogical composition
　Seasonal evolution
　Weekly evolution
　PM10 air quality study
Mineralogical composition of PM10
Determination of Pb concentration levels in PM10
　Seasonal evolution
　Weekly evolution
　Study of air quality regarding Pb in PM10
Conclusions
References