Document Type : Research article
Authors
1
Msc, Department in Environment, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University,Tehran, Iran.
2
Associate Professor, Department of Environment, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran.
3
Assistant Professor, Department of Environment, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
Abstract
Background and Purpose: With rapid population growth, particularly in Middle Eastern countries, waste generation is increasing at an unprecedented rate. Relatively primitive techniques and poorly managed integrated waste management centres exacerbate air and water pollution through secondary pollutants. Inadequate occupational health measures expose informal waste workers to various pollutants, injuries, respiratory and skin problems, infections, and other serious health issues.
Materials and Methods: This research is a descriptive and cross-sectional study. Sampling was performed randomly. To examine the variations in environmental pollution parameters (Chemical Oxygen Demand )COD(, Biochemical Oxygen Demand )BOD(, Dissolved Oxygen )DO(, Total Dissolved Solids )TDS(, Nitrogen Dioxide )NO₂(, pH, Sulfur Dioxide )SO₂(, Carbon Monoxide )CO(, Particulate Matter with aerodynamic diameter ≤ 2.5 µm )PM2.5(, Particulate Matter with aerodynamic diameter ≤ 10 µm )PM10(, moisture percentage, carbon, ash, odor) in leachate, air, and waste across seasonal and spatial scales, three designated stations were utilized during the years 2021-2022. The results from the statistical analysis of pollutant distribution were mapped, tabulated, and charted using ArcGIS software with the Inverse Distance Weighting (IDW) interpolation function.
Results: The average concentration of all pollutants, except carbon and ash, was higher within a 0-300-meter radius than other study stations. The highest levels of pollutants in leachate (BOD, COD, TDS), waste characteristics (moisture percentage), and air (SO₂, NO₂) were recorded in winter. The lowest pollution at recycling centres was observed in summer (CO, NO₂). The results indicated ten of the 15 parameters were within permissible limits (66.66%).
Conclusion: Integrated waste management centres play a crucial role in reducing pollution at the initial stages of recycling. Incorporating modern separation technologies could reduce pollution and operational costs while improving the quality of processed materials.
Open Access Policy: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/
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