Can climate change transform non-toxic sediments into toxic soils?

Gmitrowicz‐Iwan, Joanna; Ligęza, Sławomir; Pranagal, Jacek; Kołodziej, Beata; Smal, Halina

doi:10.1016/j.scitotenv.2020.141201

Cited by 12 publications

(6 citation statements)

References 55 publications

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“…Our results do not estimate the corresponding impact of the interactions of toxic and climate risk, but evidence from other studies suggests the combined effect is substantial [101,108,109]. For example, warming temperatures have been shown to both increase rates of heat-related illness and mortality and to produce and to enhance the toxicity of contaminants in the environment [20,48,110]Thus, targeting the improvement of conditions, outcomes, and structures in such countries is globally beneficial and practically and ethically urgent. However, not all countries offer the same basal context for such actions and thus models for assessing structures of risk reduction efforts remain critical.…”

Section: Discussionmentioning

confidence: 59%

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Global distribution and coincidence of pollution, climate impacts, and health risk in the Anthropocene

et al. 2021

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Previous research demonstrates that low-income countries face higher risks than high-income countries from toxic pollution and climate change. However, the relationship between these two risks is little explored or tested, and efforts to address the risks are often independent and uncoordinated. We argue that the global risks from toxic pollution and climate change are highly correlated and should be jointly analyzed in order to inform and better target efforts to reduce or mitigate both risks. We provide such analysis for 176 countries and found a strong (rs = -0.798;95%CI -0.852, -0.727) and significant (p<0.0001) relationship between the distribution of climate risk and toxic pollution. We also found that inequities in pollution production, economic status, and institutional readiness are interconnected and exacerbate risk for countries already in the highest risk categories for both toxic and non-toxic (greenhouse gas) pollution. The findings have policy implications, including the use of the proposed Target assessment to decide where best to address toxic and non-toxic pollution simultaneously, based on the need to minimize human suffering and maximize return on effort.

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Section: Discussionmentioning

confidence: 59%

“…greenhouse gases) and people's vulnerability to them [9,12,13]. However, these risks are intricately connected and substantially catalyze each other both in the environment and the human body [9][10][11][14][15][16][17][18][19][20]. For example, flood events disturb and redistribute toxic materials [16,21,22].…”

Section: Introductionmentioning

confidence: 99%

Global distribution and coincidence of pollution, climate impacts, and health risk in the Anthropocene

et al. 2021

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“…Reservoir morphometric and location characteristics mainly influenced the grain size distribution of the sediments, indirectly affecting their chemical properties. The value of an angle between the floodplain reservoir axis and the river was proven to be a factor influencing the sediment texture [48][49][50][51], which is reflected in the results of our research: The bigger the angle, the coarser…”

Section: Resultsmentioning

confidence: 75%

Small Floodplain Reservoirs in the Face of Climate Change—Sink or Source of Nutrients?

Gmitrowicz‐Iwan

Ligęza

Pranagal

et al. 2020

Water

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Despite various water protection measures, good water quality and reduction of nutrient loads seem very distant goals, largely due to limited knowledge of processes occurring in river valleys. Our study aimed at establishing the role of small floodplain reservoirs in the eutrophication processes, in the face of recent climate changes. The content of phosphorus and nitrogen compounds was determined in sediments and water of small floodplain reservoirs, (the Vistula River Valley, Poland) using spectrophotometric and Kjeldahl’s method. Nutrient loads in sediments were linked to the texture and total organic carbon content. Seasonal changes in water quality were strictly connected to changing weather conditions, flood and drought. The concentrations of PO43− and NO3− were found to rise after summer flooding. Increases in NH4+, total phosphorus (TP) and total nitrogen (TN) were correlated with the surface water area reduction in the reservoirs, which during the year of the study was on average 62%. Therefore, small floodplain reservoirs could be considered simultaneously as sinks and sources of nutrients. On the one hand, they accumulate P and N compounds carried by the river during the flood. On the other hand, climate change cause that small floodplain reservoirs may be responsible for enhanced biomass production.

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“…Over the past few years, the global climate change has caused increasingly frequent and severe acute changes in water quality. This phenomenon has been linked to rainfallinduced perturbations in reservoirs and rivers [1,2]. Ochoa-Contreras et al [3] also observed that the distribution of heavy metal concentrations in sedimentary rocks can be used to predict the heavy metals that have the greatest influence on water quality.…”

Section: Introductionmentioning

confidence: 99%

Automated Monitoring of a High-Speed Flocculation Flat-Bottomed Sludge Blanket Clarifier Pond during Drought and Flood Conditions

Chung³

2022

Water

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The occasional rains that occur during dry seasons often stir up the bottom sediment of reservoirs, which leads to high turbidity and electrical conductivity in raw waters received by water utility companies. A newly developed real-time precision multi-layer sensor (RPMS) system was used to monitor a high-speed flocculation flat-bottomed sludge blanket clarifier (HFSBC) pond in real time to solve the water quality problems caused by drought and flood conditions. The RPMS is capable of monitoring the thickness of a sludge blanket; if the coagulation and sedimentation processes of the HFSBC are not working well, the sludge blanket will be thin and have a low sludge concentration. Conversely, if the HFSBC is working properly, the sludge blanket will have a thick and highly concentrated layer of sludge. Any heavy metals that are not removed by water treatment processes will enter the water supply network, which will result in poor water quality for end users. Against the backdrop of intensifying climate change, the enhancement of automated monitoring systems and adaptation processes will be an important part of efforts to minimize and resolve acute changes in water quality.

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Can climate change transform non-toxic sediments into toxic soils?

Cited by 12 publications

References 55 publications

Global distribution and coincidence of pollution, climate impacts, and health risk in the Anthropocene

Global distribution and coincidence of pollution, climate impacts, and health risk in the Anthropocene

Small Floodplain Reservoirs in the Face of Climate Change—Sink or Source of Nutrients?

Automated Monitoring of a High-Speed Flocculation Flat-Bottomed Sludge Blanket Clarifier Pond during Drought and Flood Conditions

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