El principal objetivo en esta investigación es determinar el comportamiento de la dispersión contaminantes criterio ciudad Valledupar; además, establecer las áreas mayor impacto a causa emisiones por fuentes móviles tres sus principales vías. Para llevar cabo se realizó un análisis meteorología Valledupar para los días modelación, cual tuvieron cuenta variables dirección del viento, velocidad t...

Abstract Kabul city, the capital of Afghanistan, has suffered from poor air quality for last two decades. This study focuses on Kabul’s spatiotemporal characteristics aerosol optical depth (AOD). The annual and long-term 20 years AOD data were retrieved Moderate Resolution Imaging Spectroradiometer (MODIS) a combination Terra Aqua satellites using Google Earth Engine geospatial analysis platfor...

The north Indian states of Haryana and Punjab are believed to be the key sources air pollution in National Capital Region due massive agricultural waste burning crop harvesting seasons. However, with pandemic COVID-19 hitting country, usual practices were disrupted. preventive lockdown led restricted vehicular industrial emissions caused labours leave business Punjab. With changed scenario 2020...

Here we apply new analysis methods and approaches to existing long-term measurement series that provide additional insights into the atmospheric processes control black carbon (BC) in Arctic. Based on clustering size distribution data from Zeppelin Observatory for years 2002–2010, observations classified as ‘Polluted’ were further investigated based BC properties. The split two subgroups, while...

The variation in daily Particulate Matter 2.5 (PM2.5) concentrations was studied Edirne city center from September 1, 2019 to November 30, (autumn season). values of PM2.5 were between 5.65 and 77.59 μg m-3. concentration had the highest average value on Tuesdays compared other days. mean 23.41 backward trajectories computed clustered by applying Hybrid Single-Particle Lagrangian Integrated Tra...

Abstract The Met Office’s atmospheric dispersion model Numerical Atmospheric-Dispersion Modeling Environment (NAME) is validated against controlled tracer release experiments, considering the impact of driving meteorological data and choices in parameterization unresolved motions. Cross-Appalachian Tracer Experiment (CAPTEX) Across North America (ANATEX) were long-range experiments which inert ...