Spatial analysis and evolution of four air pollutants in England and Wales.

Pollution control is based on an exhaustive knowledge of concentration distributions. This study analyses a detailed database of NO, O, PM and PM in England and Wales over the period 2007-2011. Daily and annual means were considered in a 1-km spatial resolution.

Key Points in Air Pollution Meteorology.

Although emissions have a direct impact on air pollution, meteorological processes may influence inmission concentration, with the only way to control air pollution being through the rates emitted. This paper presents the close relationship between air pollution and meteorology following the scales of atmospheric motion. In macroscale, this review focuses on the synoptic pattern, since certain weather types are related to pollution episodes, with the determination of these weather types being the key point of these studies.

CO spatio-temporal analysis in the Iberian Peninsula.

A comparison between monthly CO values calculated in the Iberian Peninsula and those measured during six years commencing on October 2010 in the centre of its upper plateau is presented. Gaussian and Epanechnikov kernels are used to calculate CO concentration and its growth rate in the study region from values at certain grid points. Slight spatial differences are obtained, revealing that both concentration and growth rate are nearly uniform in the region.

Analysis of PM10 and PM2.5 Concentrations in an Urban Atmosphere in Northern Spain.

This work analyses levels of particles PM10 and PM2.5 recorded at four air-quality monitoring stations located in the urban area of Valladolid (Spain) during 2015-2016. To achieve this, the evolution of particle concentrations at different time scales was determined.

The influence of meteorological variables on CO and CH trends recorded at a semi-natural station.

CO and CH evolution is usually linked with sources, sinks and their changes. However, this study highlights the role of meteorological variables. It aims to quantify their contribution to the trend of these greenhouse gases and to determine which contribute most.

Temporal patterns of CO and CH in a rural area in northern Spain described by a harmonic equation over 2010-2016.

The present paper seeks to improve our knowledge concerning the evolution of CO and CH in terms of monthly trends, growth rate and seasonal variations in the lower atmosphere. Dry continuous measurements of CO and the CH mixing ratio were carried out over five and a half years (from 15 October 2010 to 29 February 2016) by multi-point sampling at 1.8, 3.