scholarly journals Epidemiological Study and Spatial Modeling of Cutaneous Leishmaniasis in Bushehr Province Using the Geographic Information System (GIS) from 2011 to 2015

Author(s):  
Ali Dehghani ◽  
Mohamad Hasan Lotfi ◽  
Hossein Falahzadeh ◽  
Katayon Vahdat ◽  
Zahra Shabani

Introduction: It is generally accepted that cutaneous leishmaniasis is considered as an important health problem all over the world which is caused by leishmaniasis protozoan. This disease is also known as a health problem in some regions of Iran including Bushehr province. The present study investigated the geographical dispersion and the epidemiological characteristics of subjects with the cutaneous leishmaniasis in this province from 2011 to 2015. Method: In this cross-sectional and analytical study, the epidemiologic data including the age, gender, residential area, and counties with this disease was analyzed and collected from 663 patients who were followed up and treated from 2011 to 2015. Results: 422 (63.7%) of studied people were residents of urban areas and 241 (36.3%) lived in rural areas. 59.4% (394 people) were male and 40.6% (269) were female. The mean age of the subjects was 21.91± 17.01 (ranging from 1 to 80). Kangan County with an average 5-year incidence of 17.72 per a hundred thousand people had the highest incidence, but Tangestan County with the incidence of 8.47 per a hundred thousand people had the lowest average incidence. Based on GIS results, Jam County, which was not recognized as the focus of this disease in the past, has been considered as a new focus of disease in recent years. Conclusion: The geographic information system (GIS) is regarded as an effective tool for the organization of diseases and health data. The crisis can be identified and controlled by taking proper measures with the discovery of spatial accumulation of diseases.

PLoS ONE ◽  
2012 ◽  
Vol 7 (10) ◽  
pp. e46029 ◽  
Author(s):  
Neela D. Goswami ◽  
Emily J. Hecker ◽  
Carter Vickery ◽  
Marshall A. Ahearn ◽  
Gary M. Cox ◽  
...  

2020 ◽  
Author(s):  
Altair Rosa ◽  
Mario Procopiuck ◽  
Marina Batalini de Macedo ◽  
César Ambrogi Ferreira do Lago ◽  
David Sample ◽  
...  

Abstract The occupation and use of increasingly impermeable urban land have made it difficult to infiltrate water and, consequently, increase the volume of runoff in different cities, which has required the development of bioretention techniques in the field of hydrology. The aim of this article is to define and apply criteria for the identification of areas for the construction of Bioretention systems for evaluations based on Geographic Information System indicators, considering the aspects of quantity and quality in urban drainage . The developed method allows to verify and compare changes in the surface of urban areas and their interference in the local environment , the mapping of land use and occupation to simplify procedures to define and prioritize areas for the construction of Bioretention systems, the use of resources from georeferenced bases to resolve eco-hydrological issues. The study develops technical bases for the use of a georeferencing tool to analyze areas with speed and consistency as a basis for decisions on the implementation of Bioretention systems


2019 ◽  
Vol 34 (01) ◽  
pp. 105-112
Author(s):  
Aline Kuramoto Gonçalves ◽  
Zacarias Xavier De Barros ◽  
Gabriel Rondina Pupo da Silveira ◽  
Yara Manfrin Garcia

AVALIAÇÃO MORFORMETRICA E DO USO E OCUPAÇÃO DA TERRA DA BACIA HIDROGRÁFICA DO CÓRREGO SANTO ANTÔNIO- SÃO FRANCISCO XAVIER (SP)   ALINE KURAMOTO GONÇALVES1; ZACARIAS XAVIER DE BARROS2; GABRIEL RONDINA PUPO DA SILVEIRA3; YARA MANFRIN GARCIA⁴   Departamento de Engenharia Rural, FCA/UNESP, Av. Universitária, nº 3780, Altos do Paraíso, 18610-034, Botucatu – SP, Brasil, 1 [email protected]; [email protected]; [email protected]; 4 [email protected]   RESUMO: Este trabalho teve como objetivo mapear as classes de uso e ocupação da terra e análise morfométrica da bacia hidrográfica do Córrego Santo Antônio, no distrito de São Francisco Xavier, São José dos Campos, São Paulo, com a utilização do Sistema de Informação Geográfica (SIG) ArcGIS versão 10.3, a carta topográfica do município de Monteiro Lobato- SP e ortofotos do projeto Mapeia São Paulo. Foram avaliados diversos parâmetros morfométricos como coeficiente de compacidade, índice de circularidade, densidade de drenagem, ordem dos cursos d’água, comprimento total dos cursos d’água e o uso e ocupação da terra. A bacia possui de 520,7ha e tendo o formato alongada, favorecendo o escoamento superficial, maior energia erosiva e baixa propensão a ocorrência de inundações. Os elementos físicos apresentam conservados devido a Área de Proteção Ambiental (APA), assegurando a sua preservação O uso e ocupação da terra compreendem em área urbana, sedes rurais, estrada rural, área agrícola, pastagem e vegetação natural, sendo o uso mais significante a vegetação natural (470 ha) representa 90,2%, seguido pela pastagem (40 ha) no total de 7,68% da área total da bacia hidrográfica. Tais resultados auxiliaram na decisão do planejamento e gerenciamento dos recursos naturais, diante das legislações ambientais.   Palavras-chaves: Sistema de Informação Geográfica, morfometria, conservação ambiental.   MORPHOMETRIC EVALUATION AND USE AND LAND OCCUPATION OF SANTO ANTONIO WATERSHED - SAO FRANCISCO XAVIER (SP)   ABSTRACT: The aim of this work was to map the land use,occupation classes and morphometric analysis of the Santo Antonio stream watershed, in Sao Francisco Xavier district, Sao Jose dos Campos, Sao Paulo, using the Geographic Information System (GIS) - ArcGIS version 10.3, the topographic map of the municipality of Monteiro Lobato-SP and orthophotos of Mapeia Sao Paulo project. Several morphometric parameters were evaluated as compactness coefficient, circularity index, drainage density, order of watercourses, watercourses total length , land use and occupation. The watershed has 520.7 ha and your elongated shape favor superficial runoff, higher erosive energy and low flooding propensity. Physical elements are conserved due Environmental Protection Area (APA), ensuring their preservation. The land use and occupation comprises urban an rural areas, rural roads, agricultural areas, pastures and natural vegetation. From the total of watershed area, natural vegetation (470 ha) represents 90.2%, followed by pasture (40 ha) totaling 7.68% . Based on environmental legislation, these results helped in the decision of planning and management of the natural resources.   Keywords: Geographic Information System, morphometry, environmental conservation.  


Author(s):  
Oday Zakariya Jasim ◽  
Noor Hashim Hamed ◽  
Mohammed Abdullah Abid

Pollutant emissions are considered to be a major threat to air quality and human health in urban areas. Therefore, accurate modeling and assessment tools are required. In this study, a model was done by the integration of machine learning algorithms and a geographic information system model. This model included the optimization of the support vector regression model by using the principal component analysis algorithm. Then, the integration of the regression model with spatial analysis modeling via a grid (100 x 100 m) was done in order to generate prediction maps during holidays and workdays in the daytime and at nighttime in a highly congested area in Baghdad city, Iraq. The data used in this study categorized into two categories. The first category is the data acquired through field surveying that includes temperature, humidity, wind speed, wind direction, and traffic flow data (e.g., the number of light and heavy vehicles), as well as carbon monoxide samples by using mobile equipment. The second category is the information derived from geographic information system data, such as land use, road network, and building height. The accuracy of the proposed model is 81%, and the lowest value of root mean square error was 0.067 ppm. The integration between air pollution models and geographic information system techniques could be a promising tool for urban air quality assessment and urban planning. These tools effectively utilized by stakeholders and decision-makers to outline proper plans and strategies to mitigate air pollutants in urban areas.


2019 ◽  
Vol 276 ◽  
pp. 06013
Author(s):  
Isra Suryati ◽  
Hafizhul Khair ◽  
Deni Gusrianti

The development of industry and the increase of transportation mode are directly proportional to the decrease in air quality. Some important pollutants have a negative impact on human health and the environment such as nitrogen dioxide (NO2) and ozone (O3). Distribution of NO2 and O3 concentrations from various sources of emissions in urban areas will provide basic information in the determination of policies, programs and regulations related to air pollution control. This study aims to map and analyze the concentration distribution of NO2 and O3 pollutants in Medan City. This research was conducted by a manual sampling of NO2 and O3 at 12 (twelve) points in Medan City. The sampling of NO2 and O3 concentrations is using impinger and then analyzed in a laboratory. The results showed that NO2 pollutant concentration in Medan City ranged from 21.33-306.19 |ig/m3. Meanwhile, for O3 concentrations ranged from 19.7-205.8 |ig/m3. Mapping of NO2 and O3 concentration using Geographic Information System obtained area that has the highest concentration of both NO2 and O3 is in Sub District of Medan Belawan. Furthermore, efforts to control air pollution can be done by applying clean technology to industry and encouraging the use of mass transportation.


2020 ◽  
Author(s):  
Altair Rosa ◽  
Mario Procopiuck ◽  
Marina Batalini de Macedo ◽  
César Ambrogi Ferreira do Lago ◽  
David Sample ◽  
...  

Abstract The occupation and use of increasingly impermeable urban land have made it difficult to infiltrate water and, consequently, increase the volume of runoff in different cities, which has required the development of bioretention techniques in the field of hydrology. The aim of this article is to define and apply criteria for the identification of areas for the construction of Bioretention systems for evaluations based on Geographic Information System indicators, considering the aspects of quantity and quality in urban drainage . The developed method allows to verify and compare changes in the surface of urban areas and their interference in the local environment , the mapping of land use and occupation to simplify procedures to define and prioritize areas for the construction of Bioretention systems, the use of resources from georeferenced bases to resolve eco-hydrological issues. The study develops technical bases for the use of a georeferencing tool to analyze areas with speed and consistency as a basis for decisions on the implementation of Bioretention systems


Sign in / Sign up

Export Citation Format

Share Document