Health risk assessment of relationship between air pollutants' density and population density in Tehran, Iran

“…8 Population density is higher in the central, western and southern regions. 9 Tehran suffers from severe ambient air pollution as documented by numerous studies. [9][10][11][12] The central districts with higher population densities (five districts of 2, 6, 10, 11 and 12 in central Tehran) have more air pollution.…”

Section: Methodology Research Locationmentioning

confidence: 99%

“…Tehran includes 22 districts in which each include from 174 239 to 9 19 001 residents according to the latest 2016 census 8. Population density is higher in the central, western and southern regions 9. Tehran suffers from severe ambient air pollution as documented by numerous studies 9–12.…”

Section: Methodsmentioning

confidence: 99%

Multiple air pollutants exposure and leukaemia incidence in Tehran, Iran from 2010 to 2016: a retrospective cohort study

et al. 2022

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ObjectiveLeukaemia is one of the most common cancers and may be associated with exposure to environmental carcinogens, especially outdoor air pollutants. The objective of this study was to investigate the association of ambient air pollution and leukaemia in Tehran, Iran.DesignIn this retrospective cohort study, data about the residential district of leukaemia cases diagnosed from 2010 to 2016 were inquired from the Ministry of Health cancer database. Data from a previous study were used to determine long-term average exposure to different air pollutants in 22 districts of Tehran. Latent profile analysis (LPA) was used to classify pollutants in two exposure profiles. The association between air pollutants and leukaemia incidence was analysed by negative binomial regression.SettingTwenty-two districts of Tehran megacity.ParticipantsPatients with leukaemia.Outcome measuresThe outcome variables were incidence rate ratios (IRR) of acute myeloid and lymphoid leukaemia across the districts of Tehran.ResultsThe districts with higher concentrations for all pollutants were near the city centre. The IRR was positive but non-significant for most of the air pollutants. However, annual mean NOx was directly and significantly associated with total leukaemia incidence in the fully adjusted model (IRR (95% CI): 1.03 (1.003 to 1.06) per 10 ppb increase). Based on LPA, districts with a higher multiple air-pollutants profile were also associated with higher leukaemia incidence (IRR (95% CI): 1.003 (0.99 to 1.007) per 1 ppb increase).ConclusionsOur study shows that districts with higher air pollution (nitrogen oxides and multipollutants) have higher incidence rates of leukaemia in Tehran, Iran. This study warrants conducting further research with individual human data and better control of confounding.

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“…The levels of PM2.5 and PM10 were only positively correlated with Popcou, with correlation coefficients of r = 0.26 and 0.28 to 0.37, respectively. Many researchers (Cramer 1998;Ghaedrahmati and Alian 2019;Han et al 2018;Sarkodie et al 2019) have studied the effects of population size on air pollution. For example, Cramer (1998) reported a positive correlation between the population size and NOx (R 2 = 0.52), SO2 (R 2 = 0.74 to 0.79), and PM10 (R 2 = 0.30 to 0.42).…”

Section: Anthropogenic Factorsmentioning

confidence: 99%

Marmara Bölgesinde Hava Kalitesini Etkileyen Faktörlerin Belirlenmesi ve Hava Kalitesi Endeksleri Kullanılarak Değerlendirilmesi

BÖLÜMÜ

Demirarslan

2022

Doğal Afetler Ve Çevre Dergisi

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Antropojenik faaliyetlere bağlı hava kirliliği dünya çapında karşılaşılan en önemli sorunlardan biridir. Bu çalışma, bir yandan hava stres indeksi (ASI) ve günlük hava kalitesi (DAQx) ölçeğini kullanarak hava kalitesini değerlendirirken diğer yandan hava kalitesi ile mekansal, meteorolojik ve antropojenik faktörler arasındaki ilişkileri belirlemeyi amaçlamıştır. Bölgedeki yıllık ortalama CO, NOx, O3, PM2.5, PM10 ve SO2 seviyeleri sırasıyla 718.6, 39.5, 44.4, 25.5, 51.3 ve 9.9 µg/m3'tür. Antropojenik değişkenlerin en çok NOx (r=0,56 ila 0,64) ve O3 (r=-0,34 ila 0,64) kirleticilerini etkilerken, meteorolojik (r=-0,38 ila 0,45) ve mekansal faktörler ise (r=-0,41 ila -0,65) en çok partiküler madde miktarını etkilemiştir. CO ve SO2 ise her türlü değişkenden farklı oranlarda etkilenmiştir. ASI ve DAQx değerleri ortalama 2.1 ve 4.3 olarak bulunmuş ve bölgedeki hava kalitesinin sırasıyla belirgin hava stresi ve yeterli hava kalitesi sergilediğini göstermiştir. Bu çalışmanın bulgu ve sonuçları, bölgedeki hava kalitesinin daha iyi anlaşılıp değerlendirilmesine katkı sağlayabilir ve ileride yapılacak çalışmalar için bir temel oluşturabilir.

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Health risk assessment of relationship between air pollutants' density and population density in Tehran, Iran

Cited by 12 publications

References 24 publications

Deprivation based inequality in NO_xemissions in England

Deprivation based inequality in NO_xemissions in England

Multiple air pollutants exposure and leukaemia incidence in Tehran, Iran from 2010 to 2016: a retrospective cohort study

Marmara Bölgesinde Hava Kalitesini Etkileyen Faktörlerin Belirlenmesi ve Hava Kalitesi Endeksleri Kullanılarak Değerlendirilmesi

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Health risk assessment of relationship between air pollutants' density and population density in Tehran, Iran

Cited by 12 publications

References 24 publications

Deprivation based inequality in NOxemissions in England

Deprivation based inequality in NOxemissions in England

Multiple air pollutants exposure and leukaemia incidence in Tehran, Iran from 2010 to 2016: a retrospective cohort study

Marmara Bölgesinde Hava Kalitesini Etkileyen Faktörlerin Belirlenmesi ve Hava Kalitesi Endeksleri Kullanılarak Değerlendirilmesi

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Deprivation based inequality in NO_xemissions in England

Deprivation based inequality in NO_xemissions in England