Death from Respiratory Diseases and Air Pollutants in Shiraz, Iran (2006-2012) (original) (raw)
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Air Pollution and Respiratory Deaths in Kerman, Iran (from 2006 till 2010)
Background & Objectives: The effects of air pollutants on respiratory mortality and morbidity are among the major concerns today. Few studies have been published on the association between mortality and air pollution in Iran. Methods: This study was undertaken in Kerman, Iran. Mortality data was inquired from the Kerman City Health Authority (from March 2006 till Sept 2010) and air pollution data was requested from the Kerman Province Environmental Protection Agency (EPA). The Kerman Province EPA collects daily data on 7 air pollutants which are SO2, NO2, NO, NOx, PM10, CO and O3 by its urban measurement station. Results: The relation between respiratory disease mortality and air pollution was determined by negative binomial regression. The daily mean of PM10 in Kerman was above 150 µgr/m³(unhealthy) on some days of the year. The results showed a significant relationship between increased male respiratory mortality and increase in ambient dust (p=0.03), O3 (p=0.004) and SO2 (p=0.03), but did not show a significant increase in female mortality death for any pollutant. Conclusion: As there seems to be a significant relationship between increased ambient dust, O3, SO2 and respiratory mortality, susceptible people and those with background respiratory diseases should practice caution in case of increases in these air pollutants.
Short-term effects of air pollution on respiratory mortality in Ahvaz, Iran
Medical journal of the Islamic Republic of Iran, 2018
Urban air pollutants may affect respiratory mortality. This study was conducted to investigate this effect in Ahvaz, one of the most polluted cities in the world. The impact of 7 major air pollutants including O3, PM10, NO2, CO, and SO2 were evaluated on respiratory mortality in different gender and age groups using a quasi-Poisson, second degree polynomial constrained, distributed lag model, with single and cumulative lag structures adjusted by trend, seasonality, temperature, relative humidity, weekdays, and holiday. Data were analyzed using the dlnm package in R x64 3.2.5 software. Significance level was set at less than 0.05. In adjusted models, for each IQR increase of O3 in the total population, the risk ratio (RR) for respiratory deaths in 0 to 14- day lags was, respectively, 1.009 (95% CI:1.001-1.016) and 1.009 (95% CI:1.002-1.017), and it was 1.021 (95% CI: 1.002-1.040) in cumulative 0 to 14- day lags. For PM10, in the total population and in adjusted models after 0 to 14- ...
Chemosphere, 2020
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Chemical Engineering Research & Design, 2019
Background: Ambient air pollution, is one of the most frequently stated environmental problems. Many epidemiological studies have documented adverse health effects for ambient air pollution. This study aimed to investigate the association between ambient air pollution and respiratory hospital admissions. Methods: In this ecological time series study data about air pollutant concentrations including CO, NO 2 , O 3 , PM 2.5 , PM 10 and SO 2 and, respiratory hospital admissions in the urban population of Arak, from January 1st 2010 to December 31st 2015; were inquired, from the Arak Department of Environment, and two major hospitals, respectively. Meteorological data were inquired for the same period as well. Time-series regression analysis with a distributed lag model, controlled for seasonality long-time trends, weather and day of the week, was used for data analysis. Results: Every 10 μg/m 3 increase in NO 2 , and PM 10 and every 1 mg/m 3 increase in CO at lag 0 corresponded to a RR = 1.032 (95%CI, 1.003-1.06), RR = 1.01 (95%CI, 1.004-1.017) and RR = 1.09 (95%CI, 1.04-1.14), increase in respiratory disease hospitalizations, respectively. Males and the elderly were found to be more susceptible than females and other age groups to air pollutants in regard to respiratory disease admissions. Conclusions: The results of this study showed that outdoor air pollutants significantly increase respiratory hospital admissions; especially among the men and elders in Arak.
Aerosol and Air Quality Research, 2017
Health impact assessments are useful for governmental authorities and decision-makers to determine the need for action and address potential public health problems arising from exposure to air pollution. The present study was conducted to assess the short-term health impacts of ambient air pollution in Tehran using the AirQ 2.2.3 model for March 2013-March 2016. Hourly concentrations of PM 10 , PM 2.5 , O 3 , NO 2 and SO 2 were acquired from the Department of Environment (DOE) and Tehran Air Quality Control Company (TAQCC). Air pollution data was validated according to the USEPA criteria, and only valid monitoring stations for each of the three years were entered to the AirQ 2.2.3 model. The pollutant concentrations were lower in the March 2015-March 2016 period compared to the previous years. The three-year average (± standard deviation) of PM 10 and PM 2.5 concentrations were 80.21 (± 34.21) and 39.17 (± 17.26) µg m-3 , respectively. The three-year averages (± standard deviation) for ozone (O 3), nitrogen dioxide (NO 2), and sulphur dioxide (SO 2) were 54.88 (± 24.15), 103.97 (± 25.88) and 39.84 (± 11.17) µg m-3 , respectively. The total estimated number of deaths attributed to PM 10 , PM 2.5 , O 3 , NO 2 and SO 2 over these three years were 4192, 4336, 1363, 2830, and 1216, respectively. The health impacts attributed to all pollutants except for PM 10 were estimated to decrease in 2016, compared to the prior years. However, the air quality in Tehran still poses significant risks to public health. In conclusion, urgent efforts are needed such as mandating the replacing of old and poorly functioning vehicles from the roadways in order to reduce the health burden that air pollution is currently imposing on this city.
Air Pollution and Cardiovascular Mortality in Kerman from 2006 to 2011
Air pollution is one of the problems in major world cities that endanger the health of the inhabitants of these cities. Air pollution may cause increased death from cardiovascular diseases. This study was carried out in Kerman, Iran. Data about cardiovascular mortality was inquired from the Kerman city Health Authority and air pollution data was inquired from the Kerman Environmental Protection Agency from 2006 to 2011. The concentration of seven pollutants SO 2 , NO 2 , O 3 , CO, PM 10 , NO X NO, is measured daily in Kerman. The relation between mortality from cardiovascular diseases and air pollution was analyzed by using correlation and negative binomial regression. Statistical analysis showed that the only significant correlation observed was between ozone and female cardiovascular mortality (r = 0.31). With increase in ozone, the number of female cardiovascular deaths increased as well. But in both crude and adjusted negative binomial regression increase in pollutants was not associated with increased incidence of cardiovascular deaths. There was not a significant relation between air pollution and cardiovascular death in Kerman. More studies in cities with higher levels of pollutants are needed to assess the effects of pollutants on cardiovascular mortality.
Relation between Mortality Rate and Air Pollutant Concentrations in Mashhad, 2007-2009
Iranian Journal Of Health Sciences
Air pollution has been known as one of the most effective factors on cardiovascular, pulmonary and infectious diseases. This study aims to determine the relation between mortality rate and air pollution in Mashhad during 2007-2009. Materials and Methods: Data of air pollution, mortality rate and geographic factors were collected during 2007-2009 and analyzed. Mortality rate, the average PSI of individual pollutants , temperature and moisture were weekly measured and the diagrams were then drawn according to the methods of statistical correlation and regression analysis of air pollution and mortality rate. Results: According to the findings, there was no significant relation between CO and mortality rate, but the other pollutants played a significant role in this regard. The maximum correlation was obtained for SO 2 and O 3 in the concentrations of 0.936 and 0.154 ppm, respectively, but in the final model for all pollutants and weather variables, only PSI for O 3 , season and humidity showed significant change. Conclusion: O 3 has increased during three years of research and has been the leading cause of death among the pollutants. Most deaths occurred in cold seasons. Among all pollutants, the maximum concentration of SO 2 was in winter and the maximum concentration of O 3 was in spring and summer 2009. [*Alidadi H. Shakeri M.T. Hossein zadeh H. Noorani A. The Relation between Mortality Rate and Air Pollutant concentrations in Mashhad, 2007-2009. IJHS 2013; 1(2):68-74] http://jhs.mazums.ac.ir
Air Pollution and Mortality in the Elderly in Kerman, Iran
Health Scope, 2021
Background: Today, air pollution is a major issue in the world, particularly in metropolitan areas. Objectives: Accordingly, this study aimed to investigate the relation between air pollution and mortality in the elderly in Kerman City. Methods: This ecological study was conducted using 2006-2013 mortality data inquired from the Deputy of Health of Kerman University of Medical Sciences. The data on cardiovascular and respiratory mortality, as well as death due to trauma, diabetes, and other diseases that happened in men and women aged 60 and higher were extracted. Air pollution data (CO, SO2, O3, NO, NO2, NOx, and PM10) for the same time frame were inquired from the Environmental Protection Agency of Kerman Province. Negative binomial regression was used to evaluate the relation between air pollutants and mortality using STATA13 software. Results: During the study period, a total of 14,793 deaths occurred in elderly men and women in Kerman City. Cardiovascular diseases were the leading cause of death. The results of multivariate analysis of air pollutants indicated that NO was directly and significantly related to the total number of deaths in the elderly, and increase in sulfur dioxide, ozone and NO was significantly related to increased mortality among elderly women. Carbon monoxide was significantly related to cardiovascular death of the elderly. But air pollutants did not show any significant effect on respiratory-, trauma-, and diabetes-related deaths. Conclusions: Our findings indicate that there is a significant relation between air pollution and mortality in the elderly. Accordingly, a warning system is suggested to reduce the elderly's commuting on highly air polluted days.
Journal of Research in Medical Sciences the Official Journal of Isfahan University of Medical Sciences, 2013
Background: National Institute of Environmental Health Sciences (NIEHS) scientists shows that long-term exposure to air pollutants increases the risk of respiratory diseases such as allergies, asthma, chronic obstructive pulmonary disease, and lung cancer. Children and the elderly are particularly vulnerable to the health effects of ozone, fine particles, and other airborne toxicants. Air pollution factors are considered as one of the underlying causes of respiratory diseases. This study aimed to determine the association of respiratory diseases documented in medical records and air pollution (Map distribution) of accumulation in Isfahan province, Iran. By plotting the prevalence and spatial distribution maps, important differences from different points can be observed. Materials and Methods: The geographic information system (GIS), pollutant standards index (PSI) measurements, and remote Sensing (RS) technology were used after entering data in the mapping information table; spatial distribution was mapped and distribution of Geographical Epidemiology of Respiratory Diseases in Isfahan province (Iran) was determined in this case study from 2005 to 2009. Results: Space with tracing the distribution of respiratory diseases was scattered based on the distribution of air pollution in the points is an important part of this type of diseases in Isfahan province where air pollution was more abundant. Conclusion: The findings of this study emphasis on the importance of preventing the exposure to air pollution, and to control air pollution product industries, to improve work environmental health, and to increase the health professionals and public knowledge in this regard.
Health impact assessment of air pollution in Shiraz, Iran: a two-part study
Journal of Environmental Health Science and Engineering, 2013
We aimed to assess health-impacts of short-term exposure to the air pollutants including PM10, SO2, and NO2 in Shiraz, Iran in a two-part study from 2008 to 2010. In part I, local relative risks (RRs) and baseline incidences (BIs) were calculate using generalized additive models. In part II, we estimated the number of excess hospitalizations (NEHs) due to cardiovascular diseases (CDs), respiratory diseases (RDs), respiratory diseases in elderly group (RDsE—people older than 65 years old), and chronic obstructive pulmonary diseases (COPDs) as a result of exposure to air pollutants using AirQ model, which is proposed approach for air pollution health impact assessment by World Health Organization. In part I, exposure to increase in daily mean concentration of PM10 was associated with hospitalizations due to RDs with a RR of 1.0049 [95% confidence interval (CI), 1.0004 to 1.0110]. In addition, exposure to increase in daily mean concentration of SO2 and NO2 were associated with hospital...