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Environment, Development and Sustainability
Immission levels and identification of sulfur dioxide sources in La Oroya city, Peruvian Andes
MARLENI BEATRIZ ALDERETE MALPARTIDA
Journal of Environmental Protection
Assessing the Impact of Sulfur Atmospheric Deposition on Terrestrial Ecosystems Close to an Industrial Corridor in the Southeast of Mexico
Abril Rodríguez
Spatio-temporal variations of sulfur dioxide concentrations in industrial and urban area via a new statistical approach
Ismael Schneider
Sulfur dioxide (SO2) is considered the most widespread pollutant that threatens environmental and human health. The purpose of this study is to propose a new method for evaluating the spatial variation of SO2 levels in the Metropolitan Area of Porto Alegre (MAPA). This method included use of Chi-square test to better identify the origin of SO2 sources. Additionally, results of the different methods applied allowed to analyze the temporal SO2 levels and their association with meteorological parameters. SO2 at five sampling sites (Esteio, Canoas, Charqueadas, Triunfo, and Gravataí) were measured during 2010–2015; using fluorescence SO2 automated analyzers. Results showed that Charqueadas had the highest average concentration (~ 15 μg m−3), followed by Triunfo (13 μg m−3), Esteio (6 μg m−3), Canoas (3 μg m−3), and Gravataí (2 μg m−3). Chi-square test applied to SO2, and wind direction quadrants showed significant contribution of local emission sources. Seasonal variation revealed higher SO2 levels on cold days for most of the studied sites, except for Esteio site. Day-wise variations revealed higher SO2 concentration on weekdays than weekends for Esteio and Canoas sites, indicating traffic influence especially during the rush-hours. Annual averages analysis identified an increasing trend in SO2 concentrations, implying that applied emission control systems and technological improvement of engines and fuels were not sufficient and thus points out a need for better subsidies mechanisms to pollutant control and effective emission reduction strategies that decision makers, including environmental agencies, must make priority by considering the local realities.
Status and prediction of sulfur dioxide as an air pollutant in Tehran, Iran
2018 •
farshad behzadi
In the present study, air quality analyses for sulfur dioxide (SO 2 ) were conducted in Tehran, Capital of Iran. The measurements were taken in four different locations to prepare average data in the city. The averages concentrations were calculated for every 24 hours, each month and each season. Results showed that the highest concentration of sulfur dioxide occurs generally in the mid-night and beginning of morning while the least concentration was found at the afternoon. Monthly concentrations of the sulfur dioxide showed the highest value in August while the least value in April. The seasonal concentrations showed the least amounts in spring while the highest in summer. Then Relations between the air pollutant and some meteorological parameters were calculated statistically using the daily average data. The wind data (velocity, direction), relative humidity, temperature, sunshine periods, dew point and rainfall were considered as independent variables. The level relationships be...
Atmospheric Environment
Prediction of sulfur dioxide concentrations at a site near downtown Santiago, Chile
2001 •
Patricio Perez
International Journal of Latest Research in Engineering and Technology
Analysis of Sulfur Dioxide Concentrations in México City, trend 2010 -2020
2021 •
IJLRET Journal
The study comprises an analysis of data from 2010 to 2020, it was proposed to obtain the best or best probability distribution functions that model SO2 concentrations in México City, using the following pdf, T location scale distribution function, extreme value distribution function and exponential distribution function, to obtain the estimators the method of maximum likelihood and moments was used and aided by the Matlab program, for valuation of the forecast model, RMSE, MSE, coefficient of determination, approximation of prediction and approximation index, in turn an analysis is made to observe its trend with an analysis of variance, the daily concentration data is downloaded from the official monitoring page and corroborating with the official air page of México City.
Atmospheric Environment
Coastal lows and sulfur air pollution in Central Chile
2002 •
Laura Tomas-Gallardo
Environmental Monitoring and Assessment
Monitoring Ambient Sulfur Dioxide Levels at some Residential Environments in the Greater Cairo Urban Region – Egypt
2000 •
Farida M . S . E . El-Dars
Atmospheric Environment
A study of the total atmospheric sulfur dioxide load using ground-based measurements and the satellite derived Sulfur Dioxide Index
2009 •
Alkiviadis Bais
Environmental Monitoring and Assessment
Study of Meteorological Aspects and Urban Concentration of SO2 in Atmospheric Environment of La Plata, Argentina
2006 •
Fabian Videla
This article presents and discusses SO(2) (ppbv) concentration measurements combined with meteorological data (mainly wind speed and direction) for a five-year campaign (1996 to 2000), in a site near an oil refinery plant close to the city of La Plata and surroundings (aprox. 740.000 inh.), considered one of the six most affected cities by air pollution in the country. Since there is no monitoring network in the area, the obtained results should be considered as medium term accumulated data that enables to determine trends by analyzing together gas concentrations and meteorological parameters. Preliminary characterization of the behaviour of the predominant winds of the region in relation with potential atmospheric gas pollutants from seasonal wind roses is possible to carry out from the data. These results are complemented with monthly averaged SO(2) measurements. In particular, for year 2000, pollutant roses were determined which enable predictions about contamination emission sources. As a general result we can state that there is a clear increase in annual SO(2) concentration and that the selected site should be considered as a key site for future survey monitoring network deployment. Annual SO(2) average concentration and prevailing seasonal winds determined in this work, together with the potential health impact of SO(2) reveals the need for a comprehensive and systematic study involving particulate matter an other basic pollutant gases.
