Predicting annual average particulate concentration in urban areas.

Particulate matter concentrations are in most cities a major environmental problem. This is also the case in Greece where, despite the various measures taken in the past, the problem still persists. In this aspect, a cost efficient, comprehensive method was developed in order to help decision makers to take the most appropriate measures towards particulates pollution abatement.

Tensile and microindentation properties of maxillofacial elastomers after different disinfecting procedures.

Statement Of Problem: Daily disinfection of maxillofacial prosthesis may reduce their service-life and lead to replacement.

Purpose: The purpose of this study was to evaluate possible alterations in the mechanical behavior of two maxillofacial elastomers after application of four different disinfection procedures.

Material And Methods: The materials tested were two maxillofacial elastomers, a commercially available polydimethylsiloxane (PDMS) and an experimental chlorinated polyethylene (CPE).

A study on the atmospheric concentrations of primary and secondary air pollutants in the Athens basin performed by DOAS and DIAL measuring techniques.

In this work an analysis of continuous Differential Optical Absorption Spectroscopy (DOAS) measurements of primary and secondary air pollutants (SO(2), NO(2) and O(3)) in the Athens basin is performed combined with Differential Absorption Lidar (DIAL) vertical ozone measurements obtained inside the Planetary Boundary Layer (PBL) and the lower free troposphere. The measurements took place during the period May 2005-February 2007, at the National Technical University of Athens Campus (200 m above sea level (asl.), 37.

Road traffic emissions impact on air quality of the Greater Athens Area based on a 20 year emissions inventory.

During the last decades, the Greater Athens Area (GAA), among many other urban agglomerations, faces atmospheric pollution problems mainly associated with high levels of particulates, nitrogen dioxide and ozone. The major pollution source for the GAA is road transportation. In this sense, the aim of this work was to investigate the existence of a direct relationship linking air pollutant concentration levels and road traffic emissions.

Land-use planning in the vicinity of major accident hazard installations in Greece.

Land-use planning, as concerns the prevention and limitation of the consequences of possible major accidents from industrial installations, is an essential mechanism for dealing with actual or potential conflicts between sources of risk, such as potentially hazardous industrial developments, and surrounding land-uses. The objective of this paper is to present a decision making methodology that is suitable for assisting urban and spatial planning in the vicinity of hazardous installations and therefore covers the directions of Article 12 of the European Council Directive 96/82/EC (the so-called SEVESO II directive). The proposed methodology was designed to address the particularities of the Greek case, regarding the type and availability of risk and spatial data.