Acute effects of air pollution on spontaneous abortion, premature delivery, and stillbirth in Ahvaz, Iran: a time-series study

Dastoorpoor, Maryam; Idani, Esmaeil; Goudarzi, Gholamreza; Khanjani, Narges

doi:10.1007/s11356-017-0692-9

Cited by 87 publications

(52 citation statements)

References 67 publications

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“…The World Health Organization estimates that air pollution is responsible for more than 1 million premature deaths each year across the world [7]. Recent studies conducted in relation to air pollution have shown that not only West ern Europe and North America but also developing coun tries are facing this health problem [8][9][10][11]. And it is pos sible that there is a relationship between chronic exposure to air pollution and coronary artery diseases [12].…”

Section: Introductionmentioning

confidence: 99%

“…Particulate matter below 10 μm was the only type of par ticulate matter, which had been recorded at the air quality monitoring stations. There were 4 air quality monitoring stations in Ahvaz, including the environmental protection agency station (Mohit Zist), Naderi square station, Uni versity square station (Behdasht Ghadim), and the meteo rological organization station (Havashenasi) [8]. Accord ing to the environmental protection agency experts, the air quality monitoring station locations were representative of the ambient air quality of the whole city.…”

Section: Introductionmentioning

confidence: 99%

“…There is just one synoptic station in Ahvaz, so meteorologi cal parameters were collected from the Ahvaz meteorologi cal station. This station is located at 48°74' E, 31°34' N [8]. Parameters measured and reported at this station include air pollutants concentrations, rainfall, sunshine, evapora tion, air temperature, dew point and relative humidity, air pressure, wind speed and visibility, and wind direction.…”

Section: Introductionmentioning

confidence: 99%

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Lag time structure of cardiovascular deaths attributed to ambient air pollutants in Ahvaz, Iran, 2008–2015

Dastoorpoor

Khanjani

Idani

et al. 2018

Int J Occup Med Environ Health

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Objectives: There are few studies about the association between breathing polluted air and increased risk of cardiovascular diseases and cardiac death in the Middle East. This study has aimed to investigate the relation between air pollutants and cardio vascular mortality (based on the International Statistical Classification of Diseases and Related Health Problems, 10th revision) in Ahvaz. Material and Methods: In this ecological study, the data about cardiovascular disease mortality and air pollutants from March 2008 until March 2015 was inquired from the Ahvaz City Authority and the Khuzestan Province Environmental Protec tion Agency. The quasi-Poisson, second degree polynomial constrained, distributed lag model; using single and cumulative lag structures, adjusted by trend, seasonality, temperature, relative humidity, weekdays and holidays was used for the data analysis purposes. Results: Findings indicated a direct significant relation between an interquartile range (IQR) increase in ozone and cardiovascular deaths among men after 3 days' lag. There was also a significant relation between an IQR increase in particulate matter below 10 μm and cardiovascular deaths for all people, over 60 years old and under 18 years old after 3 and 13 days' lags. There was a significant relation between an IQR increase in nitrogen dioxide and carbon monoxide, and cardiovascular deaths in the case of under 18-year-olds (in the lag 11) and over 60-year-olds (in the lag 9), respectively. We finally found a significant association between an IQR increase in sulfur dioxide and cardiovascular deaths in the case of men, under 18-year-olds and from 18-to 60-year-olds in the lag 9, 0, and 11, respectively (p-values < 0.05). Conclusions: It appears that air pollution is signifi cantly associated with cardiovascular deaths in Ahvaz City. Int J Occup Med Environ Health 2018;31(4)

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Lag time structure of cardiovascular deaths attributed to ambient air pollutants in Ahvaz, Iran, 2008–2015

Dastoorpoor

Khanjani

Idani

et al. 2018

Int J Occup Med Environ Health

Self Cite

View full text Add to dashboard Cite

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“…The most important causes of particulate matter air pollution in Ahvaz are its geographic location and topography, proximity to the Saudi desert, and emerging sources of dust in the neighboring countries. Other sources are transportation and existence of industries including oil, natural gas, and steel that have exposed this city to natural and man-made air pollution ( 26 , 27 ).…”

Section: Introductionmentioning

confidence: 99%

Short-term effects of air pollution on respiratory mortality in Ahvaz, Iran

Dastoorpoor

Khanjani

Bahrampour

et al. 2018

Med. J. Islam. Republic Iran

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Background: 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. Methods: 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. Results: 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- day lags and in cumulative lags of 0 to 14 for an IQR increase in the mean concentration of PM10, the RR for respiratory deaths increased significantly and was, respectively, 1.027 (95% CI:1.002-1.051), 1.029 (95% CI:1.006-1.052), and 1.065 (95% CI:1.005-1.128). NO2 showed a significant association with respiratory deaths only in the 18 to 60 year- old age group and in 9- day lags (RR= 1.318, 95% CI:1.002-1.733). Finally, the results showed that for an IQR increase in the mean concentration of CO and SO2, the adjusted RR for respiratory deaths in 9- day lags in the total population was, respectively, RR= 1.058 (95% CI:1.008-1.111) and 1.126 (95% CI:1.034-1.220). Conclusion: Air pollution in Ahvaz is probably causing increased respiratory mortality.

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“…1 Epidemiological evidence suggests that maternal exposure to ambient pollutants is associated with pregnancy loss. [5][6][7][8][9][10][11][12][13][14][15][16] With longterm exposure, even a weak effect of an environmental factor can result in a considerable disease burden. Quantifying the exposure-response function for maternal exposure to air pollution can provide new strategies to mitigate the risk of pregnancy loss.…”

Section: Introductionmentioning

confidence: 99%

Association between pregnancy loss and ambient PM2·5 using survey data in Africa: a longitudinal case-control study, 1998–2016

Xue

Zhu

Geng

et al. 2019

The Lancet Planetary Health

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Background Increasing evidence from epidemiological studies suggests that maternal exposure to ambient PM 2•5 can increase the risk of pregnancy loss. However, no studies have been done in low-income countries such as those in Africa, which have the highest incidences of pregnancy loss. In this study, we aimed to analyse the association between PM 2•5 and pregnancy loss, including miscarriage and stillbirth. Methods This self-compared case control study collected data on mothers who reported at least two births (at least one case of pregnancy loss plus at least one normal delivery) in the African Demographic and Health Surveys. Gestational exposure to PM 2•5 was assessed using a state-of-the-art estimator based on satellite measurements and chemical transport model outputs. Each case of pregnancy loss was compared with the successful control deliveries in the same mother. We estimated the association between gestational exposure to PM 2•5 and pregnancy loss using a conditional logistical model with multiple adjustments, and assessed it using the odds ratio (OR) derived from the regression.

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Acute effects of air pollution on spontaneous abortion, premature delivery, and stillbirth in Ahvaz, Iran: a time-series study

Cited by 87 publications

References 67 publications

Lag time structure of cardiovascular deaths attributed to ambient air pollutants in Ahvaz, Iran, 2008–2015

Lag time structure of cardiovascular deaths attributed to ambient air pollutants in Ahvaz, Iran, 2008–2015

Short-term effects of air pollution on respiratory mortality in Ahvaz, Iran

Association between pregnancy loss and ambient PM2·5 using survey data in Africa: a longitudinal case-control study, 1998–2016

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