seen in exposures to either pollutant alone. Thus, the screening test may be useful in detecting synergistic effects of combined pollutants. A swiunary of the lavage fluid profiles found with each type of lung injury is shown in Table 2. The use of lung washings to detect lung injury shows a potential as a rapid screening tool to assay for acute inflammatory response in the lungs of experimenta...

The high levels of photochemical pollutants in summer (especially ozone, O3) over the northwestern Mediterranean Basin (NWMB) and, specifically Catalonia, influence both ecosystems and human health. The cloud-free conditions and high solar radiation intensity promote the photochemical build-up of O3 and other pollutants (Lelieveld et al., 2002), and measurements have shown high O3 concentration...

Air pollution is composed of a particulate phase and a gaseous phase. The particulate phase, consisting of dust and aerosols, is the vehicle of toxic pollutants, transporting them into the respiratory tract. The irritants (sulphur dioxide, nitrogen oxides, aldehydes, and hydrocarbons) are the most important pollutants as regards health; the mucous membranes of the eyes and the respiratory tract...

Abstract. Central Chile faces atmospheric pollution issues all year long as a result of elevated concentrations fine particulate matter during the cold months and tropospheric ozone warm season. In addition to public health issues, environmental problems regarding vegetation growth water supply, well meteorological feedback, are at stake. Sharp spatial gradients in regional emissions, along wit...

The concentrations of five hazardous air pollutants were simulated using the community multi-scale air quality (CMAQ) modeling system. Annual simulations were performed over the continental United States for the entire year of 2001 to support human exposure estimates. Results are shown for formaldehyde, acetaldehyde, benzene, 1,3-butadiene and acrolein. Photochemical production in the atmospher...

Five-year data of SO2, PM10, NO, NO2, O3 and CO levels recorded at two air pollution monitoring stations in the city of Salamanca were analysed using a HJ-Biplot Simultaneous Representation analysis method in order to determine the possible relationships among the different pollutants and to gain insight into the temporal evolution of pollution in this city. Use of this statistical method prove...

The relationship of exhaled ethane and n-pentane to exhaled NO, carbonylated proteins, and indoor/outdoor atmospheric pollutants were examined in order to evaluate ethane and n-pentane as potential markers of airway inflammation and/or oxidative stress. Exhaled NO and carbonylated proteins were found to have no significant associations with either ethane (p = 0.96 and p = 0.81, respectively) or...