کل 30679

 spatial

22اردیبهشت
Long-term spatial and temporal variability of ambient carbon monoxide in Urmia, Iran

Long-term spatial and temporal variability of ambient carbon monoxide in Urmia, Iran

One of the pillars of epidemiologic research on the long-term health effects of air pollution is to estimate the chronic exposures over space and time. In this study, we aimed to measure the intra-urban ambient carbon monoxide (CO) concentrations within Urmia city in Iran, and to build a model within the geographic information system (GIS) to estimate the annual and seasonal means anywhere within the city.

12اردیبهشت
Spatial epidemiology and pattern analysis of childhood cancers in Tehran, Iran

Spatial epidemiology and pattern analysis of childhood cancers in Tehran, Iran

Identification of cancer clusters may have an important value to the study of disease etiology in cancer surveillance. We aimed to determine the spatial pattern of childhood cancer cases (CCCs) from 2007 to 2009 in Tehran, Iran. Records of 176 childhood cancer counts (children younger than 15 years old) for 2007-2009 were obtained from Iran’s Ministry of Health and Medical Education.