Investigating the relationship between the long-term exposure to air pollution and the frequency of depression in Shiraz during 2010-2017
Journal Title: Environmental Health Engineering and Management Journal - Year 2021, Vol 8, Issue 1
Abstract
Background: Exposure to environmental pollutants which have entered the atmosphere due to human and industrial activities results in harmful and unwanted effects on human health. The undesired effects of air pollution on mental disorders, mortality, and psychological disorders have been proven. Depression is a common mental health problem in today’s societies which impacts the quality of life. The objective of this study was to determine the relation between exposure to air pollution and frequency of depression in Shiraz (Southern Iran). Methods: Archived documents of 2658 patients diagnosed with major depressive disorder (MDD) from a psychiatric university hospital were reviewed. The concentrations of five air pollutants including CO, NO X, O3, PM10, and NO2 were determined daily in two air quality monitory stations in downtown Shiraz (Imam Hossein Square) and Kazeroon Gate. The data relevant to these five pollutants were gathered every day for 83 months, from 2010 to 2017, and for more precision, the mean values were used. The relationship between the concentration of each pollutant in the air and the number of patients referring to hospital was determined using the Spearman’s correlation coefficient. Results: There was a direct and significant relationship between all pollutants and the number of hospital admissions in each month (P < 0.05) except for CO which did not show a significant relationship with hospital admission due to depression (P > 0.05). Conclusion: The results of this study indicated a positive relationship between air pollution and depression. Of course, to prove this relationship, it is essential to conduct a number of studies with appropriate methodology and design.
Authors and Affiliations
Leila Keshtgar, Samaneh Shahsavani, Ahmad Maghsoudi, Amir Anushiravani, Foroozandeh Zaravar , Narges Shamsedini, Maryam Rayatpisheh, Mansooreh Dehghani
The use of Anodonta cygnea as an indicator of heavy metal contamination in Anzali wetland
Background: Wetlands are among the most important ecosystems and areas of life that are ecologically and economically important in the world and susceptible for heavy metal contamination. The elements in water and sedi...
Frequency and antibiotic resistance of Helicobacter pullorum among exposed and non-exposed population
Background: Helicobacter pullorum can infect the intestinal tracts of both humans and avian species. This study aimed to assess the frequency and antibiotic resistance of H. pullorum isolated from workers in the poultry...
Landfill leachate treatment using a combined method of coagulation, flocculation, advanced oxidation, and extended aeration
Background: Modifying and enhancing treatment methods is essential to meet effluent standards for treating landfill leachate. This study investigated the treatment of municipal solid waste leachate (MSWL) using coagula...
Exploring the spatial distribution of dissolved heavy metals and health risk assessment of cadmium in groundwater: A case study in Oued M’Zab region, Algeria
Background: Heavy metals are one of the most harmful groundwater contaminants due to their toxicity and persistence in the environment. This study aimed to assess the impacts of heavy metals on the quality of groundwat...
Significance of physicochemical factors in the transmission of Escherichia coli and chloride
Background: Organic manures are the source of many pathogenic bacteria which could be dangerous for human health. Bacterial transmission and retention in soil is important for processes ranging from contaminant degradati...