Methane emissions from Mexican freshwater bodies: correlations with water pollution

Gonzalez-Valencia, Rodrigo; Sepulveda‐Jauregui, Armando; Martinez‐Cruz, Karla; Hoyos‐Santillan, Jorge; Dendooven, Luc; Thalasso, F.

doi:10.1007/s10750-013-1632-4

Cited by 37 publications

(31 citation statements)

References 47 publications

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“…A particularly important consequence of enhanced oxygen depletion and organic matter loading in freshwaters is the stimulation of methanogenesis in sediments and, thus, increased emission of methane (CH 4 ) across the water–atmosphere interface (Grinham, Dunbabin, & Albert, ). This suggests that urban freshwaters could act as an important source of CH 4 to the atmosphere (Gonzalez‐Valencia et al, ; Martinez‐Cruz et al, ; Wang et al, ). Empirical data on CH 4 emissions from urban freshwaters are scarce, however, and have not been included in global emission estimates (Bastviken, Tranvik, Downing, Crill, & Enrich‐Prast, ; IPCC, ), nor in systematic assessments of CH 4 evasion from all potential sources in cities (Hopkins et al, ; Ware et al, ).…”

Section: Introductionmentioning

confidence: 99%

Methane emissions from contrasting urban freshwaters: Rates, drivers, and a whole‐city footprint

Ortega

González‐Quijano

Casper

et al. 2019

Global Change Biology

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Global urbanization trends impose major alterations on surface waters. This includes impacts on ecosystem functioning that can involve feedbacks on climate through changes in rates of greenhouse gas emissions. The combination of high nutrient supply and shallow depth typical of urban freshwaters is particularly conducive to high rates of methane (CH4) production and emission, suggesting a potentially important role in the global CH4 cycle. However, there is a lack of comprehensive flux data from diverse urban water bodies, of information on the underlying drivers, and of estimates for whole cities. Based on measurements over four seasons in a total of 32 water bodies in the city of Berlin, Germany, we calculate the total CH4 emission from various types of surface waters of a large city in temperate climate at 2.6 ± 1.7 Gg CH4/year. The average total emission was 219 ± 490 mg CH4 m−2 day−1. Water chemical variables were surprisingly poor predictors of total CH4 emissions, and proxies of productivity and oxygen conditions had low explanatory power as well, suggesting a complex combination of factors governing CH4 fluxes from urban surface waters. However, small water bodies (area <1 ha) typically located in urban green spaces were identified as emission hotspots. These results help constrain assessments of CH4 emissions from freshwaters in the world's growing cities, facilitating extrapolation of urban emissions to large areas, including at the global scale.

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Section: Introductionmentioning

confidence: 99%

Methane emissions from contrasting urban freshwaters: Rates, drivers, and a whole‐city footprint

Ortega

González‐Quijano

Casper

et al. 2019

Global Change Biology

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“…It should be noted that any increase in the loading rate would probably increase GHG emission. As it will be shown hereafter, a sigmoidal correlation was found between CH 4 fluxes and COD and, additionally, Gonzalez-Valencia et al [36] have shown that in aquatic ecosystems, an increase in the loading rate increases exponentially methane emission.…”

Section: Ghg Emissionmentioning

confidence: 66%

Greenhouse gas emissions from stabilization ponds in subtropical climate

Hernández‐Paniagua

Ramirez-Vargas

Ramos-Gómez

et al. 2013

Environmental Technology

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Waste stabilization ponds (WSPs) are a cost-efficient method to treat municipal and non-toxic industrial effluents. Numerous studies have shown that WSPs are a source of greenhouse gas (GHG). However, most reports concerned anaerobic ponds (AP) and few have addressed GHG emissions from facultative (FP) and aerobic/maturation ponds (MPs). In this paper, GHG emissions from three WSP in series are presented. These WSPs were designed as anaerobic, facultative and aerobic/maturation and were treating agricultural wastewater. CH4 fluxes from 0.6 +/- 0.4 g CH4 m(-2) d(-1) in the MP, to 7.0 +/- 1.0 g CH4 m(-2) d(-1) in the (AP), were measured. A linear correlation was found between the loading rates of the ponds and CH4 emissions. Relatively low CO2 fluxes (0.2 +/- 0.1 to 1.0 +/- 0.8 g CO2 m(-2) d(-1)) were found, which suggest that carbonate/bicarbonate formation is caused by alkaline pH. A mass balance performed showed that 30% of the total chemical oxygen demand removed was converted to CH4. It has been concluded that the WSP system studied emits at least three times more GHG than aerobic activated sludge systems and that the surface loading rate is the most important design parameter for CH4 emissions.

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“…The results of Liu et al [50] also showed that environmental factors, such as sediment temperature, sediment total nitrogen content, dissolved oxygen, and total phosphorus content in the water of Poyang Lake, mainly regulated the CH 4 efflux on a seasonal scale. GonzalezValencia et al [31] also indicated that trophic state and water quality indexes were most strongly correlated with CH 4 fluxes from Mexican freshwater bodies. 2 .…”

Section: Comparison Of Ghg Fluxes Between This Study Andmentioning

confidence: 94%

“…Urban shallow lakes, which are a kind of typical wetland, play an irreplaceable role in multiple ecological service functions in landscape, entertainment, water diversion, and many other ways. The acceleration of urbanization and dangerous human activities speeds up the export of carbon, nitrogen, and other nutrients from terrestrial ecosystems into the aquatic ecosystems, causing a significant increase in emissions of greenhouse gases from aquatic ecosystems [30][31][32]. It is unclear whether the dominant factors in natural lakes would also control C exchange across air-water interface of urban lakes.…”

Section: Introductionmentioning

confidence: 99%

Understanding the Spatial Heterogeneity of CO₂ and CH₄ Fluxes from an Urban Shallow Lake: Correlations with Environmental Factors

Zhao

Zhang

Shi

et al. 2017

Journal of Chemistry

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The spatial variability of carbon dioxide (CO 2 ) and methane (CH 4 ) fluxes across water-air interface in Xuanwu Lake was investigated in two seasons. Due to anthropogenic disturbances, the environmental factors and the fluxes of CO 2 and CH 4 in lake showed obvious spatial and seasonal variability; their average fluxes in summer are significantly higher than those in autumn. The fluxes in heavy pollution sites with high concentrations of nitrogen and phosphorus nutrient in summer were 3.9 times (142.14 : 36.07 mg⋅m −2 ⋅h −1 ) for CO 2 and 22.3 times for CH 4 (6.46 : 0.29) higher than those in little pollution sites. In autumn, they were 12.3 times and 7.1 times higher, respectively. Anthropogenic disturbance and heavy pollution increased their fluxes, but aquatic plants reduced the emission of CO 2 . Except the sampling site with flourishing lotus, most of sampling sites without aquatic plant are the emission source of CO 2 and CH 4 . The correlation analysis, multiple stepwise regression, and redundancy analysis showed the key environmental factors for CO 2 including temperature (T), pH, chemical oxygen demand (COD Mn ) in water, organic matter (OM), total nitrogen, and ammonia nitrogen in water and sediment. As for CH 4 , the key environmental factors include turbidity, oxidation-reduction potential, dissolved oxygen, COD Mn , and T in water and OM and N-NH 4 + in sediment.

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Methane emissions from Mexican freshwater bodies: correlations with water pollution

Cited by 37 publications

References 47 publications

Methane emissions from contrasting urban freshwaters: Rates, drivers, and a whole‐city footprint

Methane emissions from contrasting urban freshwaters: Rates, drivers, and a whole‐city footprint

Greenhouse gas emissions from stabilization ponds in subtropical climate

Understanding the Spatial Heterogeneity of CO₂ and CH₄ Fluxes from an Urban Shallow Lake: Correlations with Environmental Factors

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Methane emissions from Mexican freshwater bodies: correlations with water pollution

Cited by 37 publications

References 47 publications

Methane emissions from contrasting urban freshwaters: Rates, drivers, and a whole‐city footprint

Methane emissions from contrasting urban freshwaters: Rates, drivers, and a whole‐city footprint

Greenhouse gas emissions from stabilization ponds in subtropical climate

Understanding the Spatial Heterogeneity of CO2 and CH4 Fluxes from an Urban Shallow Lake: Correlations with Environmental Factors

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Product

Resources

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Understanding the Spatial Heterogeneity of CO₂ and CH₄ Fluxes from an Urban Shallow Lake: Correlations with Environmental Factors