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برآورد موارد مرگ ناشی از بیماری‌های قلبی- عروقی و تنفسی و تعداد موارد سکتۀ قلبی در اثر تماس با آلایندۀ دی اکسید گوگرد در هوای اهواز آثار بهداشتی ناشی از در معرض قرارگرفتن با آلایندۀ دی اکسید گوگرد | ||
| محیط شناسی | ||
| مقاله 6، دوره 41، شماره 2، تیر 1394، صفحه 341-350 اصل مقاله (906.51 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/jes.2015.54985 | ||
| نویسندگان | ||
| سحر گراوندی1؛ غلامرضا گودرزی2؛ مهدی وثوقی نیری3؛ محمد جواد محمدی* 4؛ سعید سعیدی مهر5؛ سارا گراوندی6 | ||
| 1دانشجوی کارشناسی ارشد پرستاری، دانشکدۀ پرستاری، دانشگاه آزاد اسلامی، واحد علوم پزشکی تهران | ||
| 2استادیار گروه مهندسی بهداشت محیط، دانشکدۀ بهداشت، دانشگاه علوم پزشکی جندی شاپور اهواز | ||
| 3دانشجوی دکتری، گروه مهندسی بهداشت محیط، دانشکدۀ بهداشت، دانشگاه علوم پزشکی جندی شاپور اهواز | ||
| 4دانشجوی دکتری، گروه مهندسی بهداشت محیط، دانشکدۀ بهداشت، دانشگاه علوم پزشکی جندی شاپور اهواز، | ||
| 5رئیس آموزش و پژوهش بیمارستان نفت اهواز | ||
| 6دانشجوی کارشناسی ارشد اقتصاد بهداشت، دانشکدۀ بهداشت، دانشگاه علوم پزشکی تهران | ||
| چکیده | ||
| در سال‌های اخیر آلودگی هوا از مهم‌ترین مخاطرات جوامع انسانی شناخته شده است. مطالعۀ حاضر به منظور برآورد آثار بهداشتی دی اکسید گوگرد در سلامت شهروندان اهوازی انجام شد. غلظت آلایندۀ دی اکسید گوگرد در سال 1390 با استفاده از ایستگاه‌های سنجش آلودگی هوای سازمان حفاظت محیط‌زیست اهواز اندازه‌گیری شد. برای نمونه‌برداری 4 ایستگاه که دربرگیرندۀ کل اهواز بود انتخاب شد. داده‌های دریافت‌شده از سازمان محیط‌زیست پردازش و پس از تأثیردادن پارامتر‌های هواشناسی به‌منزلۀ فایل ورودی به مدل تبدیل شدند. در نهایت آثار بهداشتی آلایندۀ دی اکسیدهای گوگرد محاسبه شدند. نتایج نشان داد که تعداد کل مرگ‌های منتسب به تماس با دی اکسید گوگرد در یک سال 194 نفر و تعداد موارد تجمعی مرگ قلبی- عروقی با توجه به برآورد حدوسط خطر نسبی در اثر تماس با دی اکسید گوگرد طی یک سال 156 نفر بود. تجزیه و تحلیل آماری و مقایسۀ میانگین غلظت دی اکسید گوگرد در چهار ایستگاه مطالعاتی سطح اهواز نشان داد که بالابودن درصد مرگ این دو پیامد با توجه به نتایج می‌تواند به دلیل میانگین بالاتر دی اکسید گوگرد یا شاید تداوم روزهای با غلظت بالا در اهواز باشد. | ||
| کلیدواژه‌ها | ||
| آثار بهداشتی؛ اهواز؛ دی اکسید گوگرد؛ مرگ تنفسی؛ مرگ قلبی- عروقی | ||
| عنوان مقاله [English] | ||
| Estimate of cardiovascular and respiratory mortality related to Sulfur dioxide pollutant in Ahvaz | ||
| نویسندگان [English] | ||
| Sahar Geravandi1؛ Gholam Reza Goudarzi2؛ Mehdi Vousoghi Niri3؛ Mohammad javad Mohammadi4؛ Saied Saeidimehr5؛ Sara Geravandi6 | ||
| 1Islamic Azad Universities, Tehran Medical Sciences Branch and Razi hospital, Ahvaz Jundishapur University of Medical Sciences | ||
| 2Environmental Technologies Research Center and Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran | ||
| 3Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran | ||
| 44Department of Environmental Health Engineering, School of Public Health and Razi hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran | ||
| 5General Managers of NIDC, Naft grand Hospital, the health affaire organization of oils and refineries industry, Ahvaz, Iran | ||
| 6M.S students of health economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran | ||
| چکیده [English] | ||
| Introduction Sulfur dioxide has been widely studied among the human- made pollutants. Air pollution is a major environmental risk to health. The less air pollution, the better the cardiovascular and respiratory health of the population will be, both long- and short-term. several studies have demonstrated relation between on short and long term effects exposure to air pollutants with human health. The exposure to sulfur dioxide is extremely risky for people health because these compounds enter the circulatory system directly through the airways. Sulfur dioxide can be absorbed into your body through your nose and lungs. The most important effects of sulfur dioxide air pollution include: increase rates hospital admissions, asthma attacks, cardiopulmonary disease, death and number of the years of life lost. Sulfur dioxide can be dangerous to the respiratory system and the functions of the lungs and can also lead to irritation of eyes. Ahvaz as the center of east khouzestan province in southwest of Iran is a one of the most populated and polluted cities. Ahvaz city, with a population of 1 million approximately, with an area of 8152 square kilometers, the capital city of Khuzestan Province is located between 48 degree to 49°29′ east of Greenwich meridian and between 31 degrees and 45 minutes to the north of the equator. Ahvaz is located in an arid area in south west of Iran with long and hot summertime. Temperature reaches to 50 degree of centigrade on June and July. Keep in mind, high density of industries (steel, oil and gas) makes Ahvaz as one of most important emitter. With the rapid economic growth in Ahvaz, the level of air pollution from both motor vehicles and industrial emissions has drastically increased. Furthermore, health effect of air pollution in terms of Sulfur dioxide, ozone and particulate matter in most of megacities particularly Ahvaz was reported. This research aims to estimate the health effects (total of death, cardiovascular and respiratory mortality) related to Sulfur dioxide pollutant in 2011. Figure. 1 The study area location and sampling station in Khuzestan Province (Ahvaz), south west of Iran Materials and methods In this retrospective study, was used to assess the potential effects of Sulfur dioxide exposure on human health in Ahvaz city (located in south-western Iran) during year 2011.The concentration of Sulfur dioxide pollutant was measured in 2011 in four stations in Ahvaz. The most important part of analysis is data processing that encompasses modification of temperature and pressure, primary processing (the deletion, spreadsheet and synchronization), secondary processing (writing code and condition correction), formulation and filtering. Finally, Estimate of health effects related to Sulfur dioxide pollutant in the cur of Ahvaz. We calculated health effects related to Sulfur dioxide by AirQ2.2.3 based on the utilizing relative risk, attributable proportion and baseline incidence from WHO data. This model includes four screen inputs (Supplier, AQ data, Location, Parameter) and two output screens (Table and Graph). For estimated of health impact attributable to the exposure of air pollution on the target population using AirQ model, that estimate the this impacts to specific air pollutants on a resident population in a certain area and period. Results and discussion The primary and secondary standard of sulfur dioxide according to national ambient air quality standard (NAAQS) 24-hour is 150 µg/m3. Table 1 shows that annual mean of sulfur dioxide in Ahvaz was 157/5 µg/m3 in 2011 which is higher than WHO air quality guidelines and also much higher than NAAQS values. In view of sulfur dioxide concentrations, Mohitzist and Havashenasi were the highest and the lowest stations during this year. The yearly average, summer mean, winter mean and 98 percentile of sulfur dioxide concentrations in these stations has presented in table 1. Table 1. Highest and lowest concentrations of Sulfur dioxide(μg/m3) corresponding to stations Stations Parameter Average Ahvaz lowest stations (Havashenasi) highest stations (Mohitzist) Annual mean 157/5 69/63 212/26 Summer mean 53/12 27/54 82/32 Winter mean 172/32 89/44 267/1 98 percentile 192/71 105/21 295/47 Sum of total numbers of death attributed to Sulfur dioxide was 194 cases and number of cardiovascular of death in centerline relative risk was 156 cases that 67 percent of them happened when the Sulfur dioxide concentration was less than 90 μg/m3. Relative risk and estimated Attributable Proportion percentage for total numbers of death, cardiovascular of death, respiratory mortality and myocardial infarction were calculated in table 2. Baseline incidence (BI) for this health effect for Sulfur dioxide were 1013, 497, 66, 132 and per 105 so total numbers of death were calculate 194 (RR=1.0040 and AP=1. 7265%), the number of cardiovascular mortality were calculate 156 (RR=1.0080 and AP=3. 3216%), the number of Respiratory mortality were calculate 25 (RR=1.010 and AP=4. 0236%) and the number of myocardial infarction were calculate 33 (RR=1.0064 and AP=2. 8652%) at centerline of relative risk. Table 2- Estimated relative risk indicators and the component attributable to Sulfur dioxide cases attributable to total numbers of death, cardiovascular of death, respiratory mortality and myocardial infarction Health effects attributable to Sulfur dioxide RR (relative risk) Estimated AP (%) Estimated number of excess cases (persons) total numbers of death 1.004 1.7265 194 cardiovascular death 1.008 3.3216 156 Respiratory death 1.01 4.0326 25 myocardial infarction 1.0064 2.8652 33 Also, based on the results of this study, we found that in Ahvaz number of respiratory mortality attributed to Sulfur dioxide were 25 cases and number of myocardial infarction in centerline relative risk was 33 cases that 46 percent of them happened when the Sulfur dioxide concentration was less than 60 μg/m3 in Ahvaz city during 2011. In this study, we estimate total numbers of death, cardiovascular of death, respiratory mortality and myocardial infarction were associated with short and long term fluctuations in concentrations of Sulfur dioxide pollutant in people, using AirQ model in Ahvaz, Iran. In similar work Gudarzi et al In 2009 estimate the Sulfur dioxide hygienic effects in Tehran (capital of Iran). Based on their results, almost 7.82 and 3.6 percent of all cases of whole Respiratory deaths and Hospital Admissions Respiratory Disease are attributed to Sulfur dioxide. In another study Mohamadi et al In 2009 calculated health effects air pollutants in Ahvaz. Based on their results, approximately 4.03 percent of total Respiratory deaths and 1.8 percent Hospital Admissions Respiratory Diseaserelated to Sulfur dioxide. Zalaghi et al In 2010 Survey of health effects of air pollution Ahvaz, Bushehr and Kermanshah. Based on their results, approximately 4.4 percent in Ahvaz, 8.64 percent in Kermanshah and 3.33 percent of total Respiratory deaths attributed to Sulfur dioxide. Conclusion According to the present research findings and the relieving effects of potential total numbers of death, cardiovascular of death, respiratory mortality and myocardial infarction of Sulfur dioxide exposure on human health in Ahvaz city (located in south-western Iran) during year 2011. Results show that approximately Ahvaz with 5 percent is one of the most polluted cities. The analysis of statistics and comparison of mean and maximum concentration of Sulfur dioxide in four stations in Ahvaz during 24 hrs with air pollution index show that the higher percentage of deaths perhaps could be the result of higher average Sulfur dioxide or because of sustained high concentration days in Ahvaz. | ||
| کلیدواژه‌ها [English] | ||
| Sulfur Dioxide, respiratory death, cardiovascular death, health effects, Ahvaz | ||
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