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Kannankai MP, Devipriya SP. Air quality impacts of landfill fires: A case study from the Brahmapuram Municipal Solid Waste Treatment Plant in Kochi, India. Sci Total Environ 2024; 916:170289. [PMID: 38253103 DOI: 10.1016/j.scitotenv.2024.170289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/26/2023] [Accepted: 01/17/2024] [Indexed: 01/24/2024]
Abstract
The occurrence of waste fires in unscientifically managed landfill sites has become a pressing environmental issue in the urban centers of developing economies. In the present work, an investigation was carried out to evaluate the air quality implications of three major fire events that occurred at the Brahmapuram Municipal Solid Waste Treatment Plant (BMSWTP) in Kochi, India. Initially, Landsat-based surface temperature monitoring was conducted to identify the thermal hotspots within the landfill. The emissions of different pollutants during waste fires were quantified and compared between satellite-based ex-situ and field-based in-situ methods. The dispersion patterns of PM2.5 particles released during the fires were visualised using the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) particle dispersion model. The Landfill Gas Emissions Model (LandGEM) was employed to quantify the greenhouse gases (GHGs) released during waste storage, which was then compared with the GHGs emissions during waste fires. In-situ emission estimates showed that the combustion of waste at BMSWTP led to the release of 909.3 MT of PM10, 938.8 MT of PM2.5, 5832.9 MT of CO, 43.6 MT of SOx, 284.2 MT of NOx, 138,941.9 MT of CO2, 426.8 MT of CH4, and 2665.1 MT of VOC. However, a noticeable disparity was observed between the in-situ and ex-situ emission estimates, wherein the latter underestimated the actual emissions. Most of the emitted PM2.5 particles propagated oceanward under the influence of prevailing winds, covering the densely populated areas of Kochi municipal corporation. The amount of CH4 and CO2 emitted during the waste fires was on par with the emissions from 159 days of waste storage for CH4 and 51.8 years of waste storage for CO2, with a cumulative global warming potential of 147.9 Gg CO2-e.
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Bartley MC, Tremblay T, De Silva AO, Michelle Kamula C, Ciastek S, Kuzyk ZZA. Sedimentary records of contaminant inputs in Frobisher Bay, Nunavut. Environ Sci Ecotechnol 2024; 18:100313. [PMID: 37860827 PMCID: PMC10582354 DOI: 10.1016/j.ese.2023.100313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 09/05/2023] [Accepted: 09/11/2023] [Indexed: 10/21/2023]
Abstract
Contaminants, such as polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), heavy metals, and per and polyfluoroalkyl substances (PFASs), primarily reach the Arctic through long-range atmospheric and oceanic transport. However, local sources within the Arctic also contribute to the levels observed in the environment, including legacy sources and new sources that arise from activities associated with increasing commercial and industrial development. The City of Iqaluit in Frobisher Bay, Nunavut (Canada), has seen rapid population growth and associated development during recent decades yet remains a site of interest for ocean protection, where Inuit continue to harvest country food. In the present study, seven dated marine sediment cores collected in Koojesse Inlet near Iqaluit, and from sites in inner and outer Frobisher Bay, respectively, were analyzed for total mercury (THg), major and trace elements, PAHs, PCBs, and PFASs. The sedimentary record in Koojesse Inlet shows a period of Aroclor 1260-like PCB input concurrent with military site presence in the 1950-60s, followed by decades of input of pyrogenic PAHs, averaging about ten times background levels. Near-surface sediments in Koojesse Inlet also show evidence of transient local-source inputs of THg and PFASs, and recycling or continued slow release of PCBs from legacy land-based sources. Differences in PFAS congener composition clearly distinguish the local sources from long-range transport. Outside Koojesse Inlet but still in inner Frobisher Bay, 9.2 km from Iqaluit, sediments showed evidence of both local source (PCB) and long-range transport. In outer Frobisher Bay, an up-core increase in THg and PFASs in sediments may be explained by ongoing inputs of these contaminants from long-range transport. The context for ocean protection and country food harvesting in this region of the Arctic clearly involves both local sources and long-range transport, with past human activities leaving a long legacy insofar as levels of persistent organic pollutants are concerned.
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Affiliation(s)
- Meaghan C. Bartley
- Centre for Earth Observation Science, Clayton H. Riddell Faculty of Environment, Earth and Resources, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
- Department of Environment and Geography, Clayton H. Riddell Faculty of Environment, Earth and Resources, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
| | - Tommy Tremblay
- Canada-Nunavut Geoscience Office, Iqaluit, Nunavut, X0A 0H0, Canada
| | - Amila O. De Silva
- Environment and Climate Change Canada, Burlington, Ontario, L7S 1A1, Canada
| | - C. Michelle Kamula
- Centre for Earth Observation Science, Clayton H. Riddell Faculty of Environment, Earth and Resources, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
| | - Stephen Ciastek
- Centre for Earth Observation Science, Clayton H. Riddell Faculty of Environment, Earth and Resources, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
| | - Zou Zou A. Kuzyk
- Centre for Earth Observation Science, Clayton H. Riddell Faculty of Environment, Earth and Resources, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
- Department of Environment and Geography, Clayton H. Riddell Faculty of Environment, Earth and Resources, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
- Department of Earth Sciences, Clayton H. Riddell Faculty of Environment, Earth and Resources, University of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
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Manjunatha GS, Lakshmikanthan P, Chavan D, Baghel DS, Kumar S, Kumar R. Detection and extinguishment approaches for municipal solid waste landfill fires: A mini review. Waste Manag Res 2024; 42:16-26. [PMID: 37148210 DOI: 10.1177/0734242x231168797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Municipal solid waste (MSW) management is getting more attention in the present scenario. Even though various technologies like incineration, gasification, pyrolysis and waste-to-energy plants have been developed, landfills are still the major disposal option for MSW management. MSW at landfill creates issues that are highlighted at a global level like the fire at Deonar dumping site in Mumbai, India was visible and captured by the space satellites, leading to environmental pollution. Detection and extinguishment of landfill fires at surface and sub-surface in their early stages are the major concern. Thermal imaging camera can be used to know solar radiation effect by identifying the hotspots during the day and the night time for understanding aerobic degradation effect on the surface fire. Sub-surface gas concentrations and its combinations affecting the temperature gradient can be studied for a better understanding of sub-surface fires in their early stages. The use of class 'A' foams with water, which reduces the surface tension of water, can be carried out for landfill fire extinguishment. The application of water in the form of water fog will extract a large amount of heat and block the availability of oxygen for the fire. This mini review presents the sources of fuel, heat, oxidant for landfill fire and its development process, associated pollution on air, water, land and human health due to landfill fire and methods for its extinguishment possibilities.
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Affiliation(s)
- G S Manjunatha
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - P Lakshmikanthan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Digambar Chavan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur, Maharashtra, India
- School of Engineering, Royal Melbourne Institute of Technology (RMIT), Melbourne, VIC, Australia
| | - Deepak Singh Baghel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Sunil Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nagpur, Maharashtra, India
| | - Rakesh Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India
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Moran IL, Tidwell L, Barton M, Kile M, Miller P, Rohlman D, Seguinot-Medina S, Ungwiluk B, Waghiyi V, Anderson K. Diffusive fluxes of persistent organic pollutants between Arctic atmosphere, surface waters and sediments. Sci Total Environ 2023; 892:164566. [PMID: 37270011 PMCID: PMC10330832 DOI: 10.1016/j.scitotenv.2023.164566] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/06/2023] [Accepted: 05/28/2023] [Indexed: 06/05/2023]
Abstract
Arctic communities are disproportionately exposed to pollutants from sources including global atmospheric transport and formerly used defense sites (FUDS). The effects of climate change and increasing development in the Arctic have the potential to exacerbate this problem. Yupik People of Sivuqaq, or St Lawrence Island, Alaska are one such community with documented exposures to pollutants from FUDS, and their traditional lipid-rich foods such as blubber and rendered oils of marine mammals. Troutman Lake, adjacent to the Yupik community of Gambell, Alaska, was used as a disposal site during the decommission of the adjacent FUDS, leading to community concern about exposure to military pollution and intrusion from historic local dump sites. In collaboration with a local community group, this study utilized passive sampling devices deployed in Troutman Lake. Air, water and sediment deployed samplers were analyzed for unsubstituted and alkylated polycyclic aromatic hydrocarbons (PAHs), brominated and organophosphate flame retardants and polychlorinated biphenyls (PCBs). PAH concentrations were low and comparable to other remote/rural locations. PAHs were generally in deposition from the overlying atmosphere into Troutman Lake. Of the flame retardants, brominated diphenyl ether-47 was detected in all surface water samplers while triphenyl phosphate was detected in all environmental compartments. Both were at concentrations equivalent or lower than other remote locations. Of particular interest, we measured higher atmospheric concentrations of tris(2-chloroethyl) phosphate (TCEP) (0.75-2.8 ng/m3) than previously reported in the literature for remote Arctic sites (<0.017-0.56 ng/m3). TCEP was found to be in deposition to Troutman Lake at magnitudes from 290 to 1300 ng/m2/day. No PCBs were detected in this study. Our findings demonstrate the relevance of both modern and legacy chemicals from local and global sources. These results help us to understand the fate of anthropogenic contaminants in dynamic Arctic systems providing valuable data for communities, policy makers and scientists.
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Affiliation(s)
- Ian L Moran
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - Lane Tidwell
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - Michael Barton
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA
| | - Molly Kile
- College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Pamela Miller
- Alaska Community Action on Toxics, Anchorage, AK, USA
| | - Diana Rohlman
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA; College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | | | | | - Vi Waghiyi
- Alaska Community Action on Toxics, Anchorage, AK, USA
| | - Kim Anderson
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, USA.
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Arshad M, Hasan MA, Al Mesfer MK, Al Alwan BA, Qureshi MN, Eldirderi M. Sustainable landfill sites selection using geospatial information and AHP-GDM approach: A case study of Abha-Khamis in Saudi Arabia. Heliyon 2023; 9:e16432. [PMID: 37332902 PMCID: PMC10275792 DOI: 10.1016/j.heliyon.2023.e16432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 06/20/2023] Open
Abstract
Social, environmental, and technical factors must be combined to solve the complex problem of ever-growing municipal solid waste (MSW) and minimize its negative impact on the environment. Saudi Arabia has launched a US$13 billion tourism strategy to transform the Asir region into a year-round tourist destination and has pledged to welcome 10 million local and foreign visitors by 2030. The estimated share of Abha-Khamis will increase to 7.18 million tons of household waste per year. With a gross domestic product (GDP) of USD 820.00 billion by the end of 2022, Saudi Arabia can no longer afford to neglect the issue of waste production and its safe disposal. In this study, to account for all factors and evaluation criteria, a combination of remote sensing, geographic information systems and an analytical hierarchy process (AHP) was used to determine the best locations for municipal solid waste (MSW) disposal in Abha-Khamis. The analysis revealed that 60% of the study area consists of faults (14.28%), drainage networks (12.80%), urban (11.43%), land use (11.41%) and roads (8.35%), while 40% of the suitable area for landfill. Of these, a total of 20 sites ranging in size from 100 to 595 ha are distributed at reasonable distances from the cities of Abha-Khamis, which meet all the critical criteria for suitable landfill sites mentioned in the literature. Current research shows that the use of integrated remote sensing, GIS and the AHP-GDM approach significantly improves the identification of land suitability for MSW management.
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Affiliation(s)
- Muhammad Arshad
- Department of Chemical Engineering, King Khalid University, Abha, Postal code: 61421, Kingdom of Saudi Arabia
| | - Mohd Abul Hasan
- Department of Civil Engineering, King Khalid University, Abha, Postal code: 61421, Kingdom of Saudi Arabia
| | - Mohammed K. Al Mesfer
- Department of Chemical Engineering, King Khalid University, Abha, Postal code: 61421, Kingdom of Saudi Arabia
| | - Basem Abdullah Al Alwan
- Department of Chemical Engineering, King Khalid University, Abha, Postal code: 61421, Kingdom of Saudi Arabia
| | - Mohamed Noor Qureshi
- Department of Industrial Engineering, King Khalid University, Abha, Zip code: 61421, Kingdom of Saudi Arabia
| | - Moutaz Eldirderi
- Department of Chemical Engineering, King Khalid University, Abha, Postal code: 61421, Kingdom of Saudi Arabia
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Mohsin M, Ali SA, Shamim SK, Ahmad A. A GIS-based novel approach for suitable sanitary landfill site selection using integrated fuzzy analytic hierarchy process and machine learning algorithms. Environ Sci Pollut Res Int 2022; 29:31511-31540. [PMID: 35001277 DOI: 10.1007/s11356-021-17961-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 12/01/2021] [Indexed: 06/14/2023]
Abstract
Disposal of waste without treatment is the least preferable way of sustainable solid waste management (SWM). But most cities in developing nations still use open dumps, causing negative impacts on the environment and human health. This study offered a novel approach for selecting landfill sites and sustainable SWM in Aligarh city, India. This was done through data collection, selecting models for criterion weighting, and validation. In order to prepare a landfill site suitability map, a geographic information system (GIS)-based ensemble fuzzy analytic hierarchy process-support vector machine (FAHP-SVM) and fuzzy analytic hierarchy process-random forest (FAHP-RF) models were implemented. Considering the previous studies and the study area characteristics, eighteen thematic layers were selected. The result revealed that land value; distance from residential roads, hospitals and clinics, and waste bins; and normalized difference built-up index (NDBI) have a fuzzy weight greater than 0.10, indicating significant factors. In contrast, land elevation, land slope, surface temperature, soil moisture index, normalized difference vegetation index (NDVI), and urban classification have a zero fuzzy weight, indicating these criteria have no importance. The result further revealed that FAHP-RF with an area under curve (AUC) value of 0.91 is the more accurate model than FAHP-SVM. According to the final weight-based overlay result, seven potential landfill sites were identified, out of which three were determined as most suitable by considering current land cover, public opinions, and environmental and economic concerns. This research proposed a zonal division model based on landfill sites location for sustainable SWM in Aligarh city. However, the findings may provide a guideline to the decision-makers and planners for optimal landfill site selection in other cities of developing countries.
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Affiliation(s)
- Mohd Mohsin
- Department of Civil Engineering, Zakir Husain College of Engineering, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, U.P. 202002, India
| | - Sk Ajim Ali
- Department of Geography, Faculty of Science, Aligarh Muslim University, Aligarh, U.P. 202002, India.
| | - Syed Kausar Shamim
- Department of Geography, Faculty of Science, Aligarh Muslim University, Aligarh, U.P. 202002, India
| | - Ateeque Ahmad
- Department of Geography, Faculty of Science, Aligarh Muslim University, Aligarh, U.P. 202002, India
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Caron-Beaudoin É, Ayotte P, Aker A, Blanchette C, Ricard S, Gilbert V, Avard E, Lemire M. Exposure to benzene, toluene and polycyclic aromatic hydrocarbons in Nunavimmiut aged 16 years and over (Nunavik, Canada) - Qanuilirpitaa 2017 survey. Environ Res 2022; 206:112586. [PMID: 34932977 DOI: 10.1016/j.envres.2021.112586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 12/09/2021] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
There are numerous volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs) that Inuit may be exposed to from combustion, cooking, heating, vehicle exhaust, active and passive smoking and other local sources of contaminants such as oil spills or open-air burning in landfills. To better assess the levels of exposure to these non-persistent chemicals, we measured a suite of benzene, toluene (two VOCs) and PAHs metabolites in pooled urine samples from youth and adults aged 16 years old and over who participated in the Qanuilirpitaa? 2017 Inuit Health Survey (Q2017), a population health survey conducted in Nunavik. A cost-effective pooling strategy was established and 30 different pools from individual urine samples (n = 1266) were created by grouping individual urine samples by sex, age groups and regions. To assess smoking and exposure to second-hand smoke, cotinine levels were measured in individual urine samples. We found that benzene, toluene, all detected PAHs metabolites and cotinine levels were significantly higher in Q2017 compared to adults in the Canadian Health Measure Survey Cycle 4 (2014-2015) or the general U.S population (2015-2016). Moreover, mean levels of one benzene metabolite, S-phenylmercapturic acid, and several PAHs metabolites, 1-naphthol, 2-and 3-hydroxyfluorene, and 4- and 9-hydroxyphenanthrene, known to be associated with smoking habits, were higher in Q2017 compared to reference values (RV95) established for non-smokers in the general Canadian population. Furthermore, benzene and PAHs metabolites were all correlated with cotinine levels. Our results suggest that the high smoking prevalence in Nunavik is an important contributor to the elevated benzene and PAHs exposure. Other local sources may add to that exposure, although we were not able to account for their contribution. These data highlight the importance of regional and community efforts for reducing smoking and to encourage smoke-free homes in Nunavik, while continuing to investigate and reduce other possible local sources of exposure to benzene, toluene and PAHs.
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Affiliation(s)
- Élyse Caron-Beaudoin
- Department of Health and Society, Department of Physical and Environmental Sciences, University of Toronto Scarborough, Ontario, Canada; Dalla Lana School of Public Health, University of Toronto, Ontario, Canada; Centre for Clinical Epidemiology and Evaluation, University of British Columbia, British Columbia, Canada.
| | - Pierre Ayotte
- Axe santé des Populations et pratiques optimales en santé, Centre de recherche du CHU de Québec - Université Laval, Québec, QC, Canada; Centre de toxicologie du Québec, Institut national de santé Publique du Québec, Québec, QC, Canada; Département de médecine sociale et préventive, Institut de biologie intégrative et des systèmes, Université Laval, Québec, QC, Canada
| | - Amira Aker
- Axe santé des Populations et pratiques optimales en santé, Centre de recherche du CHU de Québec - Université Laval, Québec, QC, Canada; Département de médecine sociale et préventive, Institut de biologie intégrative et des systèmes, Université Laval, Québec, QC, Canada
| | - Caty Blanchette
- Axe santé des Populations et pratiques optimales en santé, Centre de recherche du CHU de Québec - Université Laval, Québec, QC, Canada
| | - Sylvie Ricard
- Nunavik Regional Board of Health and Social Services, Kuujjuaq, QC, Canada
| | | | - Ellen Avard
- Nunavik Research Centre, Makivik Corporation, Kuujjuaq, QC, Canada
| | - Mélanie Lemire
- Axe santé des Populations et pratiques optimales en santé, Centre de recherche du CHU de Québec - Université Laval, Québec, QC, Canada; Département de médecine sociale et préventive, Institut de biologie intégrative et des systèmes, Université Laval, Québec, QC, Canada; Institut de biologie intégrative et des systèmes, Université Laval, Québec, QC, Canada.
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Abou El-magd I, Attwa M, El Bastawesy M, Gad A, Henaish A, Zamzam S. Qualitative and Quantitative Characterization of Municipal Waste in Uncontrolled Dumpsites and Landfills Using Integrated Remote Sensing, Geological and Geophysical Data: A Case Study. Sustainability 2022; 14:4539. [DOI: 10.3390/su14084539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The conducted research offers an environmental assessment of municipal waste (MW) using remote sensing (RS), geological, and geophysical datasets. As a test site, the present study aims to characterize one of the largest uncontrolled dumpsites in Egypt. RS data analysis indicates that high temperature values are concentrated at the MW and landfill site allocations as a result of the decomposition process, leading to fire risks. Moreover, the geological and structural data draw attention to the structural-controlled old topography role on MW distributions. Consequently, the dumpsite MW has larger surface quantities near the downthrows of the mapped faults. For MW characterization, geophysical data are acquired to produce2D/3D resistivity models. Because MW has the ability to become soft clay, the municipal organic waste and landfill leachate resistivities are lower than that of municipal solid waste and sandy soils. The geophysical inversion results indicate that the maximum thickness of MW calibrating with the drilled borehole data is 60 m. Furthermore, the estimated MW dumpsite volume is about 42.32 MCM. Accordingly, the MW can be characterized in an accurate qualitative and quantitative manner. Our findings, therefore, help the efforts of uncontrolled dumpsite development and thus contribute to sustainability plans.
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Chavan D, Manjunatha GS, Singh D, Periyaswami L, Kumar S, Kumar R. Estimation of spontaneous waste ignition time for prevention and control of landfill fire. Waste Manag 2022; 139:258-268. [PMID: 34991015 DOI: 10.1016/j.wasman.2021.11.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 10/05/2021] [Accepted: 11/27/2021] [Indexed: 06/14/2023]
Abstract
Openmunicipal solid waste(MSW) dumpsites in India are significant hotspots of spontaneous fire and associated air and ground water pollution. Unscientific dumping of MSW poses a major threat to the surrounding environment and human health. One-year-old biodegradable waste components comprised of paper, cardboard, newspaper, textile, wood, grass leaves and coconut shell were analyzed for the determination of the moisture content (MC), smoldering temperature, ignition temperature, and ignition time. Principal component analysis of the old waste components revealed that cardboard, paper, newspaper and leaves are most susceptible waste components for spontaneous ignition. In contrast, MC was the most influential parameter for resulting changes in ignition temperature (0C) on ignition time (min). A numerical equation was developed to estimate the time required for the spontaneous waste ignition at MSW dumpsite. The results of the study showed that the aged waste (age ≥ 3 year) having MC below 6 % and initial surface temperature of 78 0C might smolder and ignite during the hottest time of the day in ∼ 6 and ∼ 26 days, respectively. Estimates showed that the time required for spontaneous waste ignition of aged waste is moderately dependent on waste MC (∼5-55 %), surface temperature (∼40-100 0C), monthly pattern of average high temperature (∼36.6-42.6 0C), biodegradable waste components having smoldering temperature ≤ 150 0C and ignition temperature ≤ 270 0C. The present study also showed that the occurrence of landfill fire events at MSW dumpsites is more prominent during the pre-monsoon season i.e. during the elevated temperature level.
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Affiliation(s)
- Digambar Chavan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India; CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, Maharashtra, India
| | - G S Manjunatha
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, Maharashtra, India
| | - Deval Singh
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, Maharashtra, India
| | - Lakshmikanthan Periyaswami
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India; CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, Maharashtra, India
| | - Sunil Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India; CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, Maharashtra, India.
| | - Rakesh Kumar
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440 020, Maharashtra, India
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Corminboeuf A, Montero-Serrano JC, St-Louis R. Spatial and temporal distributions of polycyclic aromatic hydrocarbons in sediments from the Canadian Arctic Archipelago. Mar Pollut Bull 2021; 171:112729. [PMID: 34298327 DOI: 10.1016/j.marpolbul.2021.112729] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 07/08/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
The concentrations of 23 polycyclic aromatic hydrocarbons (PAHs; 16 parent and 7 alkylated PAHs) were determined in 113 surface marine sediment samples, 13 on-land sediment samples and 8 subsampled push cores retrieved from the Canadian Arctic Archipelago (CAA). PAHs were extracted via accelerated solvent extraction and quantified via gas chromatography-mass spectrometry. The sums of the concentrations of 16 priority PAHs in the surface sediments ranged from 7.8 to 247.7 ng g-1 (dry weight basis, dw). The PAH inputs to the sediments have remained constant during the last century. Source-diagnostic ratios and statistical analysis suggest that the PAHs in the CAA mainly originate from natural petrogenic sources, with some pyrogenic sources. Temporal trends did not indicate major source shifts and largely indicated petrogenic inputs. Overall, the sediments retrieved from the CAA have low PAH concentrations, which indicates a low ecological risk for benthic or other organisms living near the water-sediment interface.
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Affiliation(s)
- Anne Corminboeuf
- Institut des sciences de la mer de Rimouski, Université du Québec à Rimouski, Geotop & Québec-Océan, 310 Allée des Ursulines, Rimouski, QC G5L 3A1, Canada.
| | - Jean-Carlos Montero-Serrano
- Institut des sciences de la mer de Rimouski, Université du Québec à Rimouski, Geotop & Québec-Océan, 310 Allée des Ursulines, Rimouski, QC G5L 3A1, Canada
| | - Richard St-Louis
- Université du Québec à Rimouski, 300 Allée des Ursulines, Rimouski, QC G5L 3A1, Canada
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11
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Medeiros AS, Williams A, Milošević D. Assessment of ecological impairment of Arctic streams: Challenges and future directions. Ecol Evol 2021; 11:9715-9727. [PMID: 34306657 PMCID: PMC8293736 DOI: 10.1002/ece3.7798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 05/12/2021] [Accepted: 06/02/2021] [Indexed: 11/29/2022] Open
Abstract
As increased growth and development put pressure on freshwater systems in Arctic environments, there is a need to maintain a meaningful and feasible framework for monitoring water quality. A useful tool for monitoring the ecological health of aquatic systems is by means of the analysis and inferences made from benthic invertebrates in a biomonitoring approach. Biomonitoring of rivers and streams within the Arctic has been under-represented in research efforts. Here, we investigate an approach for monitoring biological impairment in Arctic streams from anthropogenic land use at two streams with different exposure to urban development in Iqaluit, Nunavut, Arctic Canada. Sites upstream of development, at midpoint locations, and at the mouth of each waterbody were sampled during 6 campaigns (2008, 2009, 2014, 2015, 2018, and 2019) to address spatial and temporal variability of the macroinvertebrate community. The influence of taxonomic resolution scaling was also examined in order to understand the sensitivity of macroinvertebrates as indicators in Arctic aquatic systems. We demonstrate that standard biological metrics were effective in indicating biological impairment downstream of sources of point-source pollutants. A mixed-design ANOVA for repeated measures also found strong interannual variability; however, we did not detect intra-annual variation from seasonal factors. When examining metrics at the highest taxonomic resolution possible, the sensitivity of metrics increased. Likewise, when trait-based metrics (α functional diversity) were applied to indicators identified at high taxonomic resolution, a significant difference was found between reference and impacted sites. Our results show that even though Arctic systems have lower diversity and constrained life-history characteristics compared to temperate ecosystems, biomonitoring is not only possible, but also equally effective in detecting trends from anthropogenic activities. Thus, biomonitoring approaches in Arctic environments are likely a useful means for providing rapid and cost-effective means of assessing future environmental impact.
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Affiliation(s)
- A. S. Medeiros
- School for Resource and Environmental StudiesFaculty of ManagementDalhousie UniversityHalifaxCanada
| | - A. Williams
- Department of BiologyFaculty of ScienceTrent UniversityPeterboroughCanada
| | - D. Milošević
- School for Resource and Environmental StudiesFaculty of ManagementDalhousie UniversityHalifaxCanada
- Department of Biology and EcologyFaculty of Sciences and MathematicsUniversity of NišNišSerbia
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12
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Krecl P, de Lima CH, Dal Bosco TC, Targino AC, Hashimoto EM, Oukawa GY. Open waste burning causes fast and sharp changes in particulate concentrations in peripheral neighborhoods. Sci Total Environ 2021; 765:142736. [PMID: 33268251 DOI: 10.1016/j.scitotenv.2020.142736] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/09/2020] [Accepted: 09/23/2020] [Indexed: 05/20/2023]
Abstract
The open burning of municipal solid waste (MSW) -frequently observed in developing countries- emits harmful pollutants, including fine particulate matter (PM2.5) and black carbon (BC), and deteriorates the air quality in urban areas. This work reports on PM2.5 and BC measurements (fixed and mobile) conducted in a residential neighborhood on the outskirts of a Brazilian city (Londrina), complemented by a public opinion survey to understand the open burning in the context of waste management. Mean (± standard deviation) BC concentration (1.48 ± 1.40 μg m-3) at the fixed sites of the neighborhood was lower than downtown, while PM2.5 (9.68 ± 8.40 μg m-3) concentration was higher. The mobile monitoring showed higher mean PM2.5 concentrations but lower BC/PM2.5 ratios than downtown, with sharp and fast spikes (up to 317.87 and 565.21 μg m-3 for BC and PM2.5, respectively). The large spatial heterogeneity of particulate concentrations was associated with the occurrence of MSW burning events. Our observations were verified by the survey respondents who identified poor waste management practices: garbage in streets, waste burning, and illegal dump sites. Even though the area has a municipal waste collection service, the majority of the respondents (87%) had seen waste burning close to their homes on a weekly basis, and think that people burn waste out of habit (54%) and because they are not patient to wait for the collection services (67%). To combat this illegal practice, we suggest raising the public awareness through campaigns at local level, adopting education initiatives and economic incentives for correct waste segregation, and enforcing regular inspection of burning events by the authorities. Our research method proved to be a time- and cost-effective approach for mapping particulate concentrations and for identifying undesirable waste practices, and could be effectively applied to other global cities.
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Affiliation(s)
- Patricia Krecl
- Graduate Program in Environmental Engineering, Federal University of Technology, Londrina, Brazil.
| | - Caroline Hatada de Lima
- Graduate Program in Environmental Engineering, Federal University of Technology, Londrina, Brazil
| | | | - Admir Créso Targino
- Graduate Program in Environmental Engineering, Federal University of Technology, Londrina, Brazil
| | - Elizabeth Mie Hashimoto
- Graduate Program in Environmental Engineering, Federal University of Technology, Londrina, Brazil
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13
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Bihałowicz JS, Rogula-Kozłowska W, Krasuski A. Contribution of landfill fires to air pollution - An assessment methodology. Waste Manag 2021; 125:182-191. [PMID: 33711733 DOI: 10.1016/j.wasman.2021.02.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 02/15/2021] [Accepted: 02/21/2021] [Indexed: 05/20/2023]
Abstract
We investigated the contribution of waste fires to air pollution. The annual emission of pollutants (CO, NOx, PM10, SO2) and greenhouse gases (CH4, CO2) were evaluated. The prediction of emissions is based on statistical data from 79 large fires that took place in Poland in 2018. We analyzed the spatial distribution of these fires along with the expected emission factor. The predicted emissions from all large waste fires was in total: 2.05 ± 0.10Gg of CH4, 19.60 ± 0.90Gg of CO, 196 ± 13Gg of CO2, 0.963 ± 0.047Gg of NOx, 5.26 ± 0.58Gg of PM10, and 0.72 ± 0.12Gg of SO2. For the evaluation of the consequences, we used the number of people exposed to PM10 emitted in one very big fire. Almost 6.5 million people were exposed to an additional 1-hour average concentration of PM10 higher than 10 μg/m3 and over 360 thousand were exposed to a concentration higher than 100 μg/m3.
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Affiliation(s)
| | | | - Adam Krasuski
- The Main School of Fire Service, 52/54 Słowackiego Street, 01-629 Warsaw, Poland
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14
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Muir DCG, Galarneau E. Polycyclic aromatic compounds (PACs) in the Canadian environment: Links to global change. Environ Pollut 2021; 273:116425. [PMID: 33460875 DOI: 10.1016/j.envpol.2021.116425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 12/28/2020] [Accepted: 12/31/2020] [Indexed: 06/12/2023]
Abstract
In this review, global change processes have been linked to polycyclic aromatic compounds (PACs) in Canada and a first national budget of sources and sinks has been derived. Sources are dominated by wildfire emissions that affect western and northern regions of Canada disproportionately due to the location of Pacific and boreal forests and the direction of prevailing winds. Wildfire emissions are projected to increase under climate warming along with releases from the thawing of glaciers and permafrost. Residential wood combustion, domestic transportation and industry contribute the bulk of anthropogenic emissions, though they are substantially smaller than wildfire emissions and are not expected to change considerably in coming years. Other sources such as accidental spills, deforestation, and re-emission of previous industrial deposition are expected to contribute anthropogenic and biogenic PACs to nearby ecosystems. PAC sinks are less well-understood. Atmospheric deposition is similar in magnitude to anthropogenic sources. Considerable knowledge gaps preclude the estimation of environmental transformations and transboundary flows, and assessing the importance of climate change relative to shifts in population distribution and energy production is not yet possible. The outlook for PACs in the Arctic is uncertain due to conflicting assessments of competing factors and limited measurements, some of which provide a baseline but have not been followed up in recent years. Climate change has led to an increase in primary productivity in the Arctic Ocean, but PAC-related impacts on marine biota appear to be modest. The net effect of changes in ecological exposure from changing emissions and environmental conditions throughout Canada remains to be seen. Evidence suggests that the PAC budget at the national scale does not represent impacts at the local or regional level. The ability to assess future trends depends on improvements to Canada's environmental measurement strategy and biogeochemical modelling capability.
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Affiliation(s)
- Derek C G Muir
- Aquatic Contaminants Research Division, Environment & Climate Change Canada, Burlington, ON, L7S1A1, Canada.
| | - Elisabeth Galarneau
- Air Quality Research Division, Environment and Climate Change Canada, 4905 Dufferin Street, Toronto, ON, M3H 5T4, Canada
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15
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Amoatey P, Omidvarborna H, Baawain MS, Al-Mamun A. Evaluation of vehicular pollution levels using line source model for hot spots in Muscat, Oman. Environ Sci Pollut Res Int 2020; 27:31184-31201. [PMID: 32488708 DOI: 10.1007/s11356-020-09215-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/07/2020] [Indexed: 06/11/2023]
Abstract
A detailed investigation was carried out to assess the concentration of near-road traffic-related air pollution (TRAP) using a dispersion model in Muscat. Two ambient air quality monitoring (AQM) stations were utilized separately at six locations near major roadways (each location for 2 months) to monitor carbon monoxide (CO) and nitrogen oxides (NOx). The study aimed to measure the concentration of near-road TRAP in a city hot spots and develop a validated dispersion model via performance measures. The US Environmental Protection Agency (US EPA) Line Source Model was implemented in which the pollutant emission factors were obtained through Comprehensive Modal Emission Model (CMEM) and COmputer Programme to calculate Emissions from Road Transport (COPERT) model. Traffic data of all vehicle categories under normal driving conditions including average vehicle speed limits and local meteorological conditions were included in the modeling study. The analysis of monitoring data showed that hourly (00:00 to 23:00) concentrations of CO were within the US EPA limits, while NOx concentration was exceeded in most locations. Also, the measured pollutant levels were consistent with hourly peak and off-peak traffic volumes. The overall primary statistical performance measures showed that COPERT model was better than CMEM due to the high sensitivity of CMEM to the local meteorological factors. The best fractional bias (0.47 and 0.39), normalized mean square error (0.44 and 0.50), correlation coefficient (0.64 and 0.70), geometric mean bias (1.07 and 1.57), and geometric variance (2.00 and 2.32) were obtained for CO and NOx, respectively. However, the bootstrap 95% CI estimates over normalized mean square error, fractional bias, and correlation coefficient for COPERT and CMEM were found to be statistically significant from 0 in the case of combined model comparison across all the traffic locations for both CO and NOx. In overall, certain roads showed weak performance mainly due to the terrain features and the lack of reliable background concentrations, which need to be considered in the future study.
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Affiliation(s)
- Patrick Amoatey
- Department of Civil and Architectural Engineering, College of Engineering, Sultan Qaboos University, P.O. Box 33, Al-Khoudh, 123, Muscat, Sultanate of Oman
| | - Hamid Omidvarborna
- Department of Civil and Architectural Engineering, College of Engineering, Sultan Qaboos University, P.O. Box 33, Al-Khoudh, 123, Muscat, Sultanate of Oman
- Global Centre for Clean Air Research, Department of Civil and Environmental Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey, GU2 7XH, UK
| | - Mahad Said Baawain
- Department of Civil and Architectural Engineering, College of Engineering, Sultan Qaboos University, P.O. Box 33, Al-Khoudh, 123, Muscat, Sultanate of Oman.
| | - Abdullah Al-Mamun
- Department of Civil and Architectural Engineering, College of Engineering, Sultan Qaboos University, P.O. Box 33, Al-Khoudh, 123, Muscat, Sultanate of Oman
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16
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Torrente-Velásquez JM, Giampietro M, Ripa M, Chifari R. Landfill reactions to society actions: The case of local and global air pollutants of Cerro Patacón in Panama. Sci Total Environ 2020; 706:135988. [PMID: 31841844 DOI: 10.1016/j.scitotenv.2019.135988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/04/2019] [Accepted: 12/05/2019] [Indexed: 06/10/2023]
Abstract
This paper studies landfill emissions and the related environmental and health risks in Panama City, with the aim to sensitize the population about the harmful effects of irresponsible resource consumption and non-deliberate solid waste generation that it is disposed of in an uncontrolled manner in landfills. Empirical data on Cerro Patacón, Panama City's landfill was obtained to describe the status of municipal waste disposal. Ten known methane generation models were used to estimate the yearly emission rate of methane from the landfill for a 100-year period starting from its inception in 1986. From the models used, the GasSIM model was chosen to estimate emission rates of six long-term hazardous air pollutants. The AERMOD source dispersion model was used to simulate their atmospheric downwind dispersion by levels of concentration over nearby affected communities; results were mapped in Google Earth. The relative contributions by population of the 32 towns making up Panama City to the forecasted waste generation in 2022 and related hazardous air pollutants emission rates from the landfill were assessed. It was found that Cerro Patacón will generate 45% of the countrywide methane generation by 2022; an average of 47 Gg. The solid waste generated by the 1.5 million inhabitants of Panama City impacts the health of ~73,600 inhabitants in nearby communities through the dispersion of hazardous atmospheric pollutants derived from the landfill. The highest emission rates were from hydrogen sulfide and dichloromethane, which can be largely attributed to the waste generated by the communities of Juan Diaz and Tocúmen. The concentration of hydrogen sulfide and benzene was over the reference concentration (uncertainty factor spanning three orders of magnitude) for all communities and years simulated. The concentration of vinyl chloride was over the RfC for all communities and years simulated, except in 2018 for 12 communities.
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Affiliation(s)
- Jorge M Torrente-Velásquez
- Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Bellaterra, Spain; Universidad Tecnológica de Panamá, Panamá.
| | - Mario Giampietro
- Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Bellaterra, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Maddalena Ripa
- Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Bellaterra, Spain
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17
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Abstract
Waste management (WM) is a demanding undertaking in all countries, with important implications for human health, environmental preservation, sustainability and circular economy. The method of sanitary landfilling for final disposal of waste remains a generally accepted and used method but the available scientific evidence on the waste-related environmental and health effects is not conclusive. Comparative studies of various WM methods (landfilling, incineration, composting etc.) show that among the municipal solid waste (MSW) treatment and disposal technological options, sanitary landfilling or open dumping is popular in most countries because of the relative low cost and low-technical requirement. The European Union (EU) Directive on waste landfills has introduced specific goals for reducing the volume of disposed waste and very strict requirements for landfilling and landfill sites. Evaluation of the impact of landfills on the environment is a crucial topic in the literature and has received increased attention recently, given growing environmental concerns. The main goal of this survey was to conduct a comprehensive assessment of possible impacts of MSW landfills on the environment. The main conclusion of the overall assessment of the literature is that the disposal of MSW in landfills entails a number of environmental risks but with respect to the current situation and rich style of living adopted in industrially developed countries, the idea of WM systems functioning without landfilling—at least in the foreseeable future within one generation—seems to be somewhat unreal. The results also provided important information of landfills as a source of environmental risk. Results of this research may have an important impact on landfill management and the disposal of waste. From the literature review, it is evident that even if high levels of waste avoidance, reuse and recycling are achieved, some waste materials will always need to be forwarded for disposal.
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18
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Chavan D, Lakshmikanthan P, Mondal P, Kumar S, Kumar R. Determination of ignition temperature of municipal solid waste for understanding surface and sub-surface landfill fire. Waste Manag 2019; 97:123-130. [PMID: 31447019 DOI: 10.1016/j.wasman.2019.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 07/30/2019] [Accepted: 08/03/2019] [Indexed: 06/10/2023]
Abstract
Open dumping of municipal solid waste (MSW) is a common practice in India which leads to a number of problems like non-uniform compaction, slope failure, percolation of water during rainy seasons, abrupt leachate generation and stability issues. It also leads to various other issues, such as manual scavenging and deliberate waste burning. During the waste degradation process, an enormous amount of heat and landfill gases (LFGs) like carbon dioxide (CO2) and methane (CH4) are generated. Biological and chemical reactions happening at the surface and inside the landfill contribute to the heat generation. Initiation of waste ignition is a major cause of spontaneous landfill fire. The risk posed by landfill fires is high in India as most of the landfills are non-engineered. The present study aims to determine the ignition temperature of waste dumped at Bhandewadi dumpsite located at Nagpur, India which will enable a better understanding of the initiation of fires in non-engineered landfill (surface and sub-surface fires), especially in Indian condition. The results of the present study showed that ignition temperature is directly proportional to the moisture content of MSW for its values ranging from 5 to 55% by mass. The correlation of smoldering time (Ts) and ignition time (Ti) of MSW with its age under gradual temperature rise in a muffle furnace (i.e., 3 °C/min) were also studied and it was found that Ts and Ti are directly proportional to the age of MSW and the values ranged from 23 to 34 min for Ts and 27 to 48 min for Ti.
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Affiliation(s)
- Digambar Chavan
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440020, India
| | - P Lakshmikanthan
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440020, India
| | - Papiya Mondal
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440020, India
| | - Sunil Kumar
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440020, India.
| | - Rakesh Kumar
- CSIR-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440020, India
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19
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Kret J, Dalidowitz Dame L, Tutlam N, DeClue RW, Schmidt S, Donaldson K, Lewis R, Rigdon SE, Davis S, Zelicoff A, King C, Wang Y, Patrick S, Khan F. A respiratory health survey of a subsurface smoldering landfill. Environ Res 2018; 166:427-436. [PMID: 29940475 DOI: 10.1016/j.envres.2018.05.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 04/27/2018] [Accepted: 05/23/2018] [Indexed: 06/08/2023]
Abstract
In late 2010, a subsurface smoldering event was detected in the Bridgeton Sanitary Landfill in St. Louis County, Missouri. This was followed by complaints from nearby residents of foul odors emanating from the landfill. In 2016 a health survey was conducted of residents near the landfill and, as a comparison, other regions of St. Louis County. The survey was a two-stage cluster sample, where the first stage was census blocks, and the second stage was households within the census blocks. The health survey, which was conducted by face-to-face interviews of residents both near the landfill and away from the landfill, focused mainly on respiratory symptoms and diseases such as asthma and chronic obstructive pulmonary disease. The differences in the prevalence of asthma (26.7%, 95% CI 19.8-34.1 landfill vs 24.7%, 95% CI 15.7-33.6 comparison) and COPD (13.7%, 95% CI 7.2-20.3 landfill vs 12.5%, 95% CI 6.4-18.7 comparison) between the two groups were not statistically significant. Landfill households reported significantly more "other respiratory conditions," (17.6%, 95% CI 11.1-24.1 landfill vs 9.5%, 95% CI 4.8-14.3 comparison) and attacks of shortness of breath (33.9%, 95% CI 25.1-42.8 landfill vs 17.9%, 95% CI 12.3-23.5). Frequency of odor perceptions and level of worry about neighborhood environmental issues was higher among landfill households (p < 0.001). We conclude that the results do not support the hypothesis that people living near the Bridgeton Landfill have elevated respiratory or related illness compared to those people who live beyond the vicinity of the landfill.
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Affiliation(s)
- Jennifer Kret
- Saint Louis County Department of Public Health, 6121 North Hanley Road, Berkeley, MO, USA
| | - Lara Dalidowitz Dame
- Saint Louis County Department of Public Health, 6121 North Hanley Road, Berkeley, MO, USA
| | - Nhial Tutlam
- Saint Louis County Department of Public Health, 6121 North Hanley Road, Berkeley, MO, USA
| | - Richard W DeClue
- Saint Louis University College for Public Health and Social Justice, Department of Epidemiology, 3545 Lafayette Avenue, St. Louis, MO, USA
| | - Spring Schmidt
- Saint Louis County Department of Public Health, 6121 North Hanley Road, Berkeley, MO, USA
| | - Kate Donaldson
- Saint Louis County Department of Public Health, 6121 North Hanley Road, Berkeley, MO, USA
| | - Roger Lewis
- College for Public Health and Social Justice, Saint Louis University, 3545 Lafayette Avenue, St. Louis, MO, USA.
| | - Steven E Rigdon
- College for Public Health and Social Justice, Saint Louis University, 3545 Lafayette Avenue, St. Louis, MO, USA
| | - Shameka Davis
- Saint Louis County Department of Public Health, 6121 North Hanley Road, Berkeley, MO, USA
| | - Alan Zelicoff
- College for Public Health and Social Justice, Saint Louis University, 3545 Lafayette Avenue, St. Louis, MO, USA
| | - Christopher King
- College for Public Health and Social Justice, Saint Louis University, 3545 Lafayette Avenue, St. Louis, MO, USA
| | - Ying Wang
- Saint Louis County Department of Public Health, 6121 North Hanley Road, Berkeley, MO, USA; College for Public Health and Social Justice, Saint Louis University, 3545 Lafayette Avenue, St. Louis, MO, USA
| | - Sarah Patrick
- Saint Louis County Department of Public Health, 6121 North Hanley Road, Berkeley, MO, USA
| | - Faisal Khan
- Saint Louis County Department of Public Health, 6121 North Hanley Road, Berkeley, MO, USA
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Kirkelund GM, Jensen PE. Electrodialytic treatment of Greenlandic municipal solid waste incineration fly ash. Waste Manag 2018; 80:241-251. [PMID: 30455005 DOI: 10.1016/j.wasman.2018.09.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 08/13/2018] [Accepted: 09/11/2018] [Indexed: 06/09/2023]
Abstract
In Greenland, fly ash could contribute as a local resource in construction as a substitute for cement in concrete or clay in bricks, if the toxicity of the ash is reduced. In this study, fly ash from three different Greenlandic waste incinerators were collected and subjected to electrodialytic treatment for removal of heavy metals with the aim of enabling reuse of the fly ashes. Seven electrodialytic experiments treating up to 2.5 kg of fly ash in a 10 L suspension were made. The heavy metal removal was mostly dependent on the initial concentration in the fly ash. Heavy metal leaching was examined before and after treatment and revealed overall a significant reduction in leaching of Cd, Cr, Cu, Pb and Zn; however, Cr and Pb leaching were above Danish guideline levels for reuse purposes. Hg leaching was also reduced to below Danish guideline levels, although only investigated for one fly ash. Hexavalent Cr was not the dominant speciation of Cr in the fly ashes. Ettringite formed during electrodialytic treatment in the fly ash suspensions at pH above 12. The total concentration of eligible components for reuse such as CaO, SiO2 and Al2O3, increased during the electrodialytic treatment.
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Affiliation(s)
- Gunvor M Kirkelund
- Department of Civil Engineering, Technical University of Denmark, 2800 Lyngby, Denmark.
| | - Pernille E Jensen
- Department of Civil Engineering, Technical University of Denmark, 2800 Lyngby, Denmark
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21
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Velasco A, Ferrero R, Gandino F, Montrucchio B, Rebaudengo M. A Mobile and Low-Cost System for Environmental Monitoring: A Case Study. Sensors (Basel) 2016; 16:E710. [PMID: 27196912 DOI: 10.3390/s16050710] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 05/09/2016] [Accepted: 05/10/2016] [Indexed: 12/04/2022]
Abstract
Northern Italy has one of the highest air pollution levels in the European Union. This paper describes a mobile wireless sensor network system intended to complement the already existing official air quality monitoring systems of the metropolitan town of Torino. The system is characterized by a high portability and low cost, in both acquisition and maintenance. The high portability of the system aims to improve the spatial distribution and resolution of the measurements from the official static monitoring stations. Commercial PM10 and O3 sensors were incorporated into the system and were subsequently tested in a controlled environment and in the field. The test in the field, performed in collaboration with the local environmental agency, revealed that the sensors can provide accurate data if properly calibrated and maintained. Further tests were carried out by mounting the system on bicycles in order to increase their mobility.
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