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111.653  Articles
1 of 11.166 pages  |  10  records  |  more records»
The inter-comparison of regional air quality models is an effective way to understand uncertainty in ambient pollutant concentrations simulated using various model configurations, as well as to find ways to improve model performance. Based on the outcomes... see more

In many cities, the main tool used to assess pollution abatement policies is the air quality information obtain-ed from local monitoring network. However, in the context of a complex meteorology and land use such as those prevailing in México City, th... see more

Mobile monitoring and computational fluid dynamics (CFD) modeling are complementary methods to examine spatio-temporal variations of air pollutant concentrations at high resolutions in urban areas. We measured nitrogen oxides (NOx), black carbon (BC), par... see more

Using an air quality model, this study shows how emissions from the “Miguel Hidalgo” refinery of Petróleos Mexicanos (Pemex) and the thermoelectric plant “Francisco Pérez Ríos” of the Comisión Federal de Electricidad (CFE, Federal Electricity Commission) ... see more

There is an increasing interest in the research of methods for measuring, calculation, predictionand estimation of the level of pollutant in ambient air. Wind velocity is a major actor in atmospheric pollutantdispersion, so, together with experimental tec... see more

Prescribed burning (PB) is practiced throughout the USA, most extensively in the southeast, for the purpose of maintaining and improving the ecosystem and reducing wildfire risk. However, PB emissions contribute significantly to trace gas and particulate ... see more

Urban air pollution is one of the most visible environmental problems to have accompanied China’s rapid urbanization. Based on emission inventory data from 2014, gathered from 289 cities, we used Global and Local Moran’s I to measure the spatial autorrela... see more

Meteorological data assimilation from surface observations (PREPBUFR) and satellite radiance (BUFR) provided by the National Centers for Environmental Prediction (NCEP) is carried out to determine their possible influence on chemical variables concentrati... see more

The subject of the study is intensive oxidation of metal, sprayed in the process of arc metallization, due to the oxygen in the air, which leads to a significant reduction in the content of alloying elements in the coating and, accordingly, deteriorates t... see more

1 of 11.166 pages  |  10  records  |  more records»