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Introduction: Peroxide is the first compound that is produced because of fats and oils oxidation and it can cause thrombosis, cancer, premature aging, allergic inflammation, heart and brain ischemic, respiratory distress syndrome and various liver disorders. The purpose of this study was to determine the peroxide Value of oil consumed in the deli systems (sandwich and falafel) in Ilam city in 2010. Materials and Methods: The investigation of peroxide value of oil consumed in the deli systems (sandwich and falafel) in Ilam city was a descriptive-analytical study. The samples (195 samples) were collected in the deli systems of Ilam city at three steps of the day including morning (8-10 am), evening (14-17 pm) and night (19-21 pm). The sampling and analysis were conducted on the basis of Iran's standard number of 493 and 4179, respectively. The obtained data was also analyzed by SPSS and Excel softwares. Findings: The statistical (variance) analysis showed that there was no significant difference between oil type (solid or liquid) and preservation condition with peroxide Value (p˃0.05). The results was also showed that there was significant difference between use frequency of oil with peroxide number and between temperature with peroxide Value (p<0.05). Discussion &Conclusion: The value of peroxide number in the most samples was high as a result of the high frequency use of oil. Therefore, because of the health risks of it, the continuous planning and applicable guidelines by healthcare authorities must be considered.

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Introduction: Addiction is one of the most important psychosocial injuries in our country. Estimation of number of addicts in communities have always been a difficult and and controversies. The aim of the present was to estimation of number of addicts to drug abuse addicts by using capture-recapture method in Ilam city.
 Materials & methods: Data were collected by using questionnaire based on check list and capture-recapture method from addicts referring to addiction treatment centers and camps. Then, geometric probability distribution was used to estimate the number of hidden population of drug users with 95% confidence interval.
Findings: There were 1713 addicts in recovery campuses in Ilam city. According to capture recapture methods, it is estimated that the number of addicts in this city is within 7939 people (95% CI: 6694-9184). So, percent of drug users than total population 15 years and over of the city was estimated 10%. Also, the use of drugs among identified addicts illustrated that use of drugs was started with 28% in the 70s and in 80s have increased to extremely alarming rate of 67.2%.
 Discussion & Conclusion: The overall results of the study indicate that addiction has an increasing trend in Ilam and its growth in was began in 1370s and accelerated in late 1380s and a shift is happening from use of traditional materials (such as drugs) to the new drugs, industrial and kitchen (such as glass and crack).