Assessment of Health Impacts of PM2.5 by AirQ+ Software in the City of Sanandaj, Iran (2018-2019)

2021 ◽  
Vol 9 (1) ◽  
pp. 45-56
Author(s):  
Ghorban Asgari ◽  
◽  
Ramin Khoshniyat ◽  
Farhad Karimi ◽  
Kamal Ebrahimi ◽  
...  

Background: Particulate or particle mattes in term of air pollution are particles with a diameter of 2.5 μm or less (PM2.5). PM2.5 is a natural source of air pollution and has harmful effects on citizens in Sanandaj City, located in the west of Iran. Methods: In this study, the hourly data of concentration of PM2.5 were taken from the Kurdistan Environmental Protection Agency. During the study period (2018-2019), the 24-hour concentration of PM2.5 exceeded 339 times the average level. By AirQ+ software, the relationship between data and Relative Risk (RR), Baseline Incidence (BI), and Attributable Proportion (AP) were estimated. Then chronic obstructive pulmonary disease, lung cancer, ischemic heart disease, and brain stroke in the range of over 30 years were estimated. Results: The main target of this study was to survey the relationship between PM2.5 concentration and the death rate of citizens of this non-industrial city. The long-term health effect (more than 6 months) of PM2.5 caused 326 deaths on average (except for accidents and poisoning). Conclusion: Increase the concentration of PM2.5 is one factor that affects a high percentage of mortality rate.

2020 ◽  
Vol 6 (1) ◽  
pp. 53-59
Author(s):  
Ekta Dhanoa

In 2015, 3.2 million people died due to Chronic Obstructive Pulmonary Disease (COPD), worldwide. In fact, survival rates for those living with severe COPD are lower than for those with cancer. The one known contributor to this disease is air pollution, and with its rising levels every year, it is necessary to determine the exact correlation between air pollution and COPD. Data was gathered for a selection of 20 countries from the World Bank Database and Health Data Database. This data was graphed and analyzed using the Pearson correlation coefficient, which is a statistical test that measures the relationship between 2 variables. When calculated, the Pearson correlation coefficient was 0.756, determining that there is a significant relationship between air pollution and COPD. Through the investigation, it is concluded that there is a positive correlation between PM2.5 air pollution and mortality rate due to COPD. PM2.5 is a component of air pollution defined as the amount of atmospheric particulate matter with a diameter less than 2.5 micrometers. Due to its small physical nature, PM2.5 can easily infiltrate the lungs, causing infections in the respiratory organs. They can reach the bronchi and even the alveoli, causing inflammation which ultimately results in COPD and premature deaths. Therefore, this research will aim to investigate the relationship between PM2.5 air pollution and COPD, allowing for a better understanding of these variables.


Author(s):  
Stacey Brown-Amilian ◽  
Yussuf Akolade

Disproportionate distribution of air pollution is a major burden on the health of people living in proximity to toxic facilities. There are over 1000 Toxics Release Inventory (TRI) facilities distributed across the state of Illinois. This study investigates and spatially analyzes the relationship between chronic obstructive pulmonary disease (COPD) hospitalizations and toxic emissions from TRI facilities. In addition, this study investigates the connection between COPD hospitalizations and socioeconomic variables. Accounting for dispersion of air pollution beyond the TRI facilities source was attained using the inverse distance weighting interpolation approach. Multiple statistical methods were used including principal components analysis, linear regression, and bivariate local indicators of spatial association (BiLISA). The results from the linear regression model and BiLISA clustering maps show there is a strong connection between COPD hospitalizations and socioeconomic status along with race. TRI emissions were not statistically significant, but there are three major clusters of high COPD hospitalizations with high TRI emissions. Rural areas also seem to carry a higher burden of pollution-emitting facilities and respiratory hospitalizations.


Atmosphere ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 959
Author(s):  
Shengkai Pan ◽  
Xiaokai Feng ◽  
Daniel Pass ◽  
Rachel A. Adams ◽  
Yusong Wang ◽  
...  

Adverse health outcomes caused by ambient particulate matter (PM) pollution occur in a progressive process, with neutrophils eliciting inflammation or pathogenesis. We investigated the toxico-transcriptomic mechanisms of PM in real-life settings by comparing healthy residents living in Beijing and Chengde, the opposing ends of a well-recognised air pollution (AP) corridor in China. Beijing recruits (BRs) uniquely expressed ~12,000 alternative splicing (AS)-derived transcripts, largely elevating the proportion of transcripts significantly correlated with PM concentration. BRs expressed PM-associated isoforms (PMAIs) of PFKFB3 and LDHA, encoding enzymes responsible for stimulating and maintaining glycolysis. PMAIs of PFKFB3 featured different COOH-terminals, targeting PFKFB3 to different sub-cellular functional compartments and stimulating glycolysis. PMAIs of LDHA have longer 3′UTRs relative to those expressed in Chengde recruits (CRs), allowing glycolysis maintenance by enhancing LDHA mRNA stability and translational efficiency. PMAIs were directly regulated by different HIF-1A and HIF-1B isoforms. BRs expressed more non-functional Fas isoforms, and a resultant reduction of intact Fas proportion is expected to inhibit the transmission of apoptotic signals and prolong neutrophil lifespan. BRs expressed both membrane-bound and soluble IL-6R isoforms instead of only one in CRs. The presence of both IL-6R isoforms suggested a higher migration capacity of neutrophils in BRs. PMAIs of HIF-1A and PFKFB3 were downregulated in Chronic Obstructive Pulmonary Disease patients compared with BRs, implying HIF-1 mediated defective glycolysis may mediate neutrophil dysfunction. PMAIs could explain large variances of different phenotypes, highlighting their potential application as biomarkers and therapeutic targets in PM-induced diseases, which remain poorly elucidated.


Background: Cardiovascular complications caused by Chronic Obstructive Pulmonary Disease (COPD) will affect structure and function of heart’s normal anatomy. This study aims to determine the relationship between the abnormality of NT Pro BNP levels and echocardiographic features of right ventricular (RV) dysfunction in COPD. Method: A cross-sectional study to assess the association between the abnormality of NT Pro BNP levels and echocardiographic features of right ventricular dysfunction in COPD in the outpatient unit of the Integrated Heart Center H. Adam Malik Hospital Medan. COPD patients were grouped based on GOLD criteria from spirometry examination into severe COPD (GOLD III) and very severe COPD (GOLD IV). Subjects then performed NT pro BNP and echocardiography examination to assess pathological changes in cardiac. Result: NT Pro BNP was higher in GOLD IV. Cut off value of NT Pro BNP > 172 pg/nl is the initial parameter of right ventricular dysfunction. Pulmonary hypertension was found in 93% of cases. The most common cardiac pathological findings were RV hypertrophy (71%), RV dysfunction (86.7%) and pulmonary regurgitation (87.5%). Pathological findings on echocardiography were more common in the GOLD IV group. COPD severity was associated with NT Pro BNP abnormalities (p <0.001) and associated with pathologic echocardiographic findings (p <0.001). Conclusion: Severe COPD is associated with increased NT pro-BNP abnormalities and pathological findings on echocardiography. Echocardiography facilitates early detection of cardiovascular complications in patients with severe and very severe COPD (GOLD III and IV).


2021 ◽  
pp. 2004594
Author(s):  
Shuo Liu ◽  
Youn-Hee Lim ◽  
Marie Pedersen ◽  
Jeanette T. Jørgensen ◽  
Heresh Amini ◽  
...  

BackgroundWhile air pollution has been linked to the development of chronic obstructive pulmonary disease (COPD), evidence on the role of environmental noise is just emerging. We examined the associations of long-term exposure to air pollution and road traffic noise with COPD incidence.MethodsWe defined COPD incidence for 24 538 female nurses from the Danish Nurse Cohort (age>44 years) as the first hospital contact between baseline (1993 or 1999) and 2015. We estimated residential annual mean concentrations of particulate matter with diameter<2.5 µm (PM2.5) since 1990 and nitrogen dioxide (NO2) since 1970 by the Danish DEHM/UBM/AirGIS modeling system, and road traffic noise (Lden) since 1970 by the Nord2000 model. Time-varying Cox regression models were applied to assess the associations of air pollution and road traffic noise with COPD incidence.Results977 nurses developed COPD during 18.6 years’ mean follow-up. We observed associations with COPD for all three exposures with hazard ratios (HRs) and 95% confidence intervals (CIs) of 1.19 (1.01, 1.41) per 6.26 µg·m−3 for PM2.5, 1.13 (1.05, 1.20) per 8.19 µg·m−3 for NO2, and 1.15 (1.06, 1.25) per 10 dB for Lden. Associations with NO2 and Lden attenuated slightly after mutual adjustment, but were robust to adjustment for PM2.5. Associations with PM2.5 were attenuated to null after adjustment for either NO2 or Lden. No potential interaction effect was observed between air pollutants and noise.ConclusionsLong-term exposure to air pollution, especially traffic-related NO2, and road traffic noise were independently associated with COPD.


Lung ◽  
2020 ◽  
Vol 198 (4) ◽  
pp. 617-628
Author(s):  
Peter S. P. Cho ◽  
Hannah V. Fletcher ◽  
Richard D. Turner ◽  
Irem S. Patel ◽  
Caroline J. Jolley ◽  
...  

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