Southwest Finland Research Articles

Nurses' perceptions to alleviate dyspnoea in inpatients with advanced cancer while receiving palliative care.

To explore nurses' perceptions to alleviate dyspnoea in inpatients with advanced cancer while receiving palliative care. A descriptive qualitative design. Seven focus groups were conducted with nurses (n = 27) from five specialized palliative care wards in four hospitals in south and southwest Finland. The focus groups were conducted between June and November 2019, and the transcripts were analysed using inductive analysis. The findings revealed three categories: recognizing dyspnoea is a multi-faceted problem, dealing with the complexity of assessment of dyspnoea and strategies for relieving dyspnoea. Nurses perceived the complexity of dyspnoea as a symptom and emphasized the importance of utilizing patients' subjective experiences and consistent assessment scales to determine its severity. Furthermore, nonpharmacological interventions are as pertinent as pharmacological and medical interventions. The findings can assist nurses in selecting appropriate interventions for dyspnoea care, ultimately enhancing the quality of patient care and patient safety.

Rapid implementation of home oxygen treatment and remote monitoring for COVID-19 patients at the verge of the Omicron wave in Turku, Finland

BackgroundIn Turku, Finland, we introduced a home oxygen treatment and app-based monitoring program for hospitalized COVID-19 patients to facilitate an early discharge during the Omicron wave. In this case series we explore the clinical parameters of patients enrolled in the program and evaluate the cost–benefit and safety issues of the program.MethodsHospitalized COVID-19 patients with marked hypoxemia but otherwise in stable condition were screened from Turku City Hospital and Turku University Hospital by treating doctors for eligibility in the program. Peripheral oxygen saturation of > 92% and breathing frequency < 30/min in rest with oxygen supplementation were among the criteria. All patients actively participating in the program between 10th of January 2022 and 30th of September 2022 were included in this case series. Clinical data of hospitalization and monitoring were analysed, and cost–benefit evaluation was based on the number of saved hospitalization days.ResultsNineteen COVID-19 patients were included in this case series and recruited from three different hospital departments in the Turku city region, South-West Finland. All patients were male, the median age was 59 years and the median duration of hospitalization before enrolment in the program was 6 days (range 3—20 days). The median duration of home oxygen treatment was 13 days (range 3—72 days) and the median duration of home monitoring was 18 days (range 7—41 days). A total of 210,5 hospital days were prevented, resulting in savings of €144,490 of healthcare expenditure (on average 9 days and €7,605 per patient). No major safety issues were reported during the program.ConclusionsIn our case series, home oxygen treatment combined with home monitoring was safe and economically beneficial. Application based monitoring could be considered in other post-acute pulmonary conditions to reduce hospitalization and healthcare costs.

Patterns of mental health services and mood disorder disability pensions: a standard comparison of Finland’s three largest hospital districts

IntroductionMental disorders are one of the most common and disabling health conditions worldwide. There is however no consensus on the best practice of system level mental health services (MHS) provision, in order to prevent e.g. mood disorder disability pensions (DPs). We analyzed the MHS provision between Finland’s three largest hospital districts Helsinki and Uusimaa (HUS), Southwest Finland and Pirkanmaa, with known differences in mood disorder DP risk but presumably equal rates of mood disorder prevalence.MethodsWe used public MHS data analyzed with the standardized DEscription and Evaluation of Services and DirectoriEs for Long Term Care (DESDE-LTC) mapping tool, focusing on all MHS, outpatient care provision, local services without and with gatekeeping, and centralized services. We also collected demographic data based on the European Socio-Demographic Schedule (ESDS). As a novel approach, the Gini-Simpson Diversity Index (GSDI) was calculated for the districts.ResultsEvident differences were observed regarding the districts’ MHS factors. As the hospital district with lower DP risk, HUS was characterized by the highest level of regional socioeconomic prosperity as well as high service richness and diversity. With a nationally average DP risk, Southwest Finland had the highest number of MHS personnel in full-time equivalents (FTE) per 100 000 inhabitants. Pirkanmaa, with a higher DP risk, had overall the lowest service richness and the lowest FTE of the three districts in all MHS, outpatient care and local services with gatekeeping.ConclusionsOur findings indicate that greater richness and diversity of MHS, especially in outpatient and community-based settings, may serve as indicators of a balanced, high-quality service system that is more effective in preventing mood disorder DP and meeting the different needs of the population. In addition, the need for sufficient resourcing in all MHS and outpatient services is indicated. We suggest using diversity indices to complement the measuring and reporting of regional service variation.

3D morphometry of De Geer Moraines and Crevasse-Squeeze Ridges: Differentiating between pushing and squeezing mechanisms from remotely sensed data

De Geer Moraines (DGM) and Crevasse-Squeeze Ridges (CSR) are important landforms that can provide useful insights regarding palaeo-glacial processes. Specifically, these landforms can provide information concerning ice-marginal dynamics, and/or subglacial processes, depending on the context in which they are formed. The extraction of 3D morphometric data from these ridges can help to elucidate their formational processes, and potentially enable landform differentiation. We develop a new Python-based ArcGIS toolbox that can automatically extract 3D morphometric data from large sample sets of linear features. The morphometry toolbox may be applied to a wide range of research disciplines that are concerned with quantifying the morphometry of any elongated landforms. This is particularly useful for DGM and CSR studies, where visual similarities can result in confusion over landform type and/or formation. Here we present a case study from southwest Finland and the Northwest Territories, Canada, whereby high-resolution 3D morphometric data is used to analyse and classify DGMs and CSRs. The results reveal key differences in morphometric properties between the landforms which enables a quantified foundation by which to differentiate them. The studied CSRs are found to be higher, wider, steeper, more symmetrical, less sinuous and more voluminous than the studied prominent DGM. In contrast, a tendency for cross-sectional asymmetry in DGM supports an origin by ice-marginal pushing, rather than basal squeeze-up into crevasses. This is further supported by CSRs being less sinuous than DGM due to them being constrained to the dimensions and planform of the (relatively straight) host crevasses, whereas DGM follow a more sinuous path related to the ice margin shape. Future work should include sedimentological and geophysical studies to constrain DGM internal architecture and formation processes. The results may then be used to validate the application of DGM for detailed ice marginal reconstructions.

Experience with Tissue Bank Services in 2014 and 2020 in Turku, Finland

The objective of a musculoskeletal tissue bank is to collect, test, store, and provide musculoskeletal tissue allografts required in orthopedic procedures. Strict exclusion criteria are followed when selecting suitable cadaver musculoskeletal tissue donors, and the allografts are procured under sterile conditions to avoid bacterial contamination. Tissue banking in Turku, Finland, began in 1972, and tissue bank services were last reviewed in 2003. This study aimed to review the operation of the musculoskeletal tissue bank in Turku, Finland, between 2014 and 2020 and to analyze the number, types, and contamination rate of the allografts procured from the cadaver donors. Potential donor-related factors causing bacterial contamination of the allografts and whether potential musculoskeletal tissue donors were overlooked among multiorgan donors were also studied. A retrospective review of all cadaver musculoskeletal tissue donors used in the Hospital District of Southwest Finland Tyks Orto Musculoskeletal Tissue Bank during the study period was conducted, and data on the procured allograft was collected and presented. The donors were selected among patients treated in the intensive care unit (ICU) of Turku University Hospital (TYKS). A total of 28 cadaver donors were used, and 636 allografts were procured between 2014 and 2020. The bacterial contamination rate was 2.5%, which was lower than that in the previous international literature. The median treatment time in the ICU was significantly longer, and the median value of the highest C-reactive protein level was significantly higher in the group of donors with positive allograft bacterial cultures. The bacterial contamination rate in the tissue bank was low on an international scale. Some suitable musculoskeletal tissue donors were overlooked among multiorgan donors.

Sedimentary phosphorus burial in three contrasting boreal lakes in Finland

AbstractPermanent phosphorus (P) burial in sediment regulates lake trophic state over long timescales, but the controls on P burial are only partially understood. A diversity of biogeochemical settings may be found in lake sediments, which may have a strong impact on the processes controlling P burial from one location to another. Here, we investigate early diagenesis of P in three contrasting lakes in Southwest Finland. Eutrophic Lake Köyliönjärvi and mesotrophic Lake Pyhäjärvi have a history of nutrient loadings from agriculture, while Lake Vähäjärvi is an oligotrophic small forest lake, leading to potentially contrasting sediment biogeochemical dynamics. We combined porewater data and solid-phase sediment geochemical data to identify P phases in each system and investigate the dominant processes controlling P burial. Porewater profiles showed opposite gradients between the oligotrophic and the mesotrophic/eutrophic systems, implying net diffusive fluxes into and out of the sediments, respectively. Furthermore, sediment P data showed contrasting P speciation. Reactive P is buried in all systems, but the role of reducible iron (Fe) oxides in P retention is greater in mesotrophic/eutrophic lakes. In the oligotrophic system, aluminium (Al) oxides controlled P sorption into the sediment after diffusion from lake water. Evidence for vivianite formation was found only in the mesotrophic Lake Pyhäjärvi sediment, where 42–47% of total P was released in a Fe(II)-P specific extraction from the deeper part of the sediment column and vivianite crystals could be isolated from sediment samples.

Unveiling the Lost 18th-Century Residential Architecture of German Architect Christian Friedrich Schröder in Turku

This article uses textual records to examine and partly reconstruct the vanished layers of residential architecture in 18th-century Finland, then the eastern part of the Kingdom of Sweden. In 1827, the biggest fire in the history of Northern Europe almost completely destroyed the town of Turku, which had by then become part of the Russian Grand Duchy of Finland. In addition, a major part of the oeuvre of the influential town architect, the German-born Christian Friedrich Schröder (1722–89), was lost. His influence shaped the development of residential design in the towns and countryside of southwest Finland. This article addresses his relatively vast and previously unknown urban buildings through inventories, especially those on fire insurance policies. This evidence helps to build an overall picture of his designs, which are hitherto known almost only from the most affluent and mainly masonry-built manors, public buildings, and official residences. Moreover, the German-born Schröder’s designs exemplify how 18th-century trends of residential architecture in Europe were implemented in the local context of Finland, even in modest buildings for the middle and lower classes.

Rethinking non-urgent EMS conveyance to ED during night-time - a pilot study in Southwest Finland

BackgroundThe amount of emergency medical service missions has increased internationally in recent years, and emergency departments are overcrowded globally. Previous evidence has shown that patients arriving at the emergency department during nighttime (20 − 08) have to wait longer, are more likely to leave without being seen, and often have non-urgent conditions compared to patients arriving during the day. The objective of this pilot study was to examine what kind of patient groups are conveyed as non-urgent to the hospital by emergency medical service during nighttime and what kind of diagnostic tests and medical interventions those patients receive before morning to identify patient groups that could be non-conveyed or directed to alternative points of care.MethodsThis was a retrospective register study where the information of patients conveyed to university hospital during nighttime (20 − 08) were analyzed. Frequencies of the dispatch codes presenting complaints, medical treatments, and diagnostic tests were calculated. Age significance (under/over 70 years) was also tested.Results73.5% of the patients received neither medical treatment nor had diagnostic tests taken before morning. Most of these were patients with mental disorder(s), hip pain/complaint, or laceration/cut. Almost half of the patients with abdominal pain or fever had laboratory tests taken. Patients over 70 years old received more medications and had more diagnostic tests taken than younger patients.ConclusionsSome of the low-acuity patients could be non-conveyed or referred to alternative pathways of care to avoid impolitic use of emergency medical service and to reduce the workload of emergency departments. Further research is needed to ensure patient safety for patients who are not conveyed at night.

Understanding the process of improving accessibility and affordability of inter-municipal bus transport system

This paper examines the ways an inter-municipality bus system for passengers improved its accessibility and affordability for end-users at regional level. Using archetype theory, we conducted a case-study in FÖLI, a not-for-profit organization tasked with collective transport of passengers by bus in Southwest Finland. We find that FÖLI implemented a radical revolutionary change by introducing a new framework for the carriage of passengers by bus at a regional level, in which a zone free and flat fare policy applies. The sequence of change became central; with a continuous reorientation linearity aiming to improve the accessibility and affordability of collective transport by bus for commuters. The paper contributes to archetype theory by examining the relevance of accessibility and affordability in the configuration process of designing and implementing change, and extending knowledge in this area. Specifically, for the first time, our research shows the way in which FÖLI used the accessibility and affordability policy as an interpretative scheme to design and implement the change process successfully. The practical implication is that municipalities understood the relevance of improving collective transport infrastructures (roads, systems and technologies) to attract commuters as a way of saving total costs to fund underperforming buslines.

Ecosocial compensation of nature-based social values in Turku, South-West Finland

Complementary building is one of the key objectives in current urban planning as cities attempt to mitigate climate change. However, this development often reduces the urban green space. This incremental encroachment can negatively affect both the well-being of residents and biodiversity. Compensation is a way to safeguard the urban green space under the pressure of complementary construction. In the spirit of creative democracy, in this study, we examined the preconditions for ecosocial compensation and the mitigation of the harmful effects of incremental encroachment, as well as the mitigation hierarchy, in the context of land-use planning. We organised three workshops for planners and civil society associations at which we examined the preconditions for ecosocial compensation and other mitigation options using co-creation methods. We also carried out a PPGIS survey for the residents of Turku and were able to insert one question into the voting advice application of the municipal election in 2021. Our results show that there is a need for a new kind of information regarding nature-based social values when considering mitigation options and compensation. A comprehensive planning approach instead of incremental planning practices is important for considering compensation. Residents’ initiative is essential in the ecosocial approach, and the compensation process may become a way for residents to step up and introduce concerns and new opportunities to the public discussion and actual decisions about urban green space.

The role of emergency medical services in the management of in-hospital emergencies: Causes and outcomes of emergency calls – A descriptive retrospective register-based study

BackgroundMedical emergency teams (METs) are in place in some hospitals in Finland to respond to critical emergency events. However, in hospitals without dedicated METs, staff are instructed to call emergency medical services (EMS) to deal with emergencies. This study examined the reasons for calling EMS to hospitals and the outcomes of these calls. MethodsDescriptive retrospective register-based study of the response and management of in-hospital emergencies by EMS in the wellbeing services county of Southwest Finland. Patient care reports of the EMS and those of the hospitals were analysed. ResultsIn total, 138 medical emergencies managed by EMS were included in this study. 108 of these related to patients, and 25 related to hospital personnel. Cardiac arrest (n = 36) and a reduced level of consciousness (n = 29) were the most common in-hospital emergencies. In 68% of in-hospital emergencies managed by the EMS team, after calling 112, hospital personnel implemented various treatment measures. In 72% of cases, follow-up treatment was required. ConclusionsHospital personnel are able to initiate medical measures in emergencies, even when no MET is available. Although EMS are important in responding to in-hospital emergencies, they seem to be performing the same role as METs.

Ligneous amendments increase soil organic carbon content in fine-textured boreal soils and modulate N2O emissions.

Organic soil amendments are used to improve soil quality and mitigate climate change. However, their effects on soil structure, nutrient and water retention as well as greenhouse gas (GHG) emissions are still poorly understood. The purpose of this study was to determine the residual effects of a single field application of four ligneous soil amendments on soil structure and GHG emissions. We conducted a laboratory incubation experiment using soil samples collected from an ongoing soil-amendment field experiment at Qvidja Farm in south-west Finland, two years after a single application of four ligneous biomasses. Specifically, two biochars (willow and spruce) produced via slow pyrolysis, and two mixed pulp sludges from paper industry side-streams were applied at a rate of 9-22 Mg ha-1 mixed in the top 0.1 m soil layer. An unamended fertilized soil was used as a control. The laboratory incubation lasted for 33 days, during which the samples were kept at room temperature (21°C) and at 20%, 40%, 70% or 100% water holding capacity. Carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4) fluxes were measured periodically after 1, 5, 12, 20 and 33 days of incubation. The application of ligneous soil amendments increased the pH of the sampled soils by 0.4-0.8 units, whereas the effects on soil organic carbon content and soil structure varied between treatments. The GHG exchange was dominated by CO2 emissions, which were mainly unaffected by the soil amendment treatments. The contribution of soil CH4 exchange was negligible (nearly no emissions) compared to soil CO2 and N2O emissions. The soil N2O emissions exhibited a positive exponential relationship with soil moisture. Overall, the soil amendments reduced N2O emissions on average by 13%, 64%, 28%, and 37%, at the four soil moisture levels, respectively. Furthermore, the variation in N2O emissions between the amendments correlated positively with their liming effect. More specifically, the potential for the pulp sludge treatments to modulate N2O emissions was evident only in response to high water contents. This tendency to modulate N2O emissions was attributed to their capacity to increase soil pH and influence soil processes by persisting in the soil long after their application.

Mitochondrial DNA Fragmentation and Risk of Non-Hodgkin Lymphoma

Research suggests that increased mitochondrial DNA copy number (mtDNAcn) is associated with increased risk of non-Hodgkin lymphoma (NHL); however, no studies to date have evaluated whether the mitochondrial DNA fraction with breaks (mtDNAfb) is associated with risk of NHL. To evaluate the association of mtDNAfb with NHL risk. This nested case-control study, which used prospectively collected samples as part of baseline enrollment (from 1985 through 1988) of 29 133 men who smoked for the Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study conducted in southwest Finland, included 107 incident NHL cases and 107 controls (matched on date of birth ±5 years). Analyses were conducted from January to September 2022. High-throughput real-time polymerase chain reaction assays quantifying mtDNAfb. Incident NHL cases were identified in the ATBC Study through April 30, 2002, using the Finnish Cancer Registry and the Register of Causes of Death. The mtDNAfb was quantified and categorized based on the median, tertile, and quartile distributions among controls. Odds ratios (ORs) and 95% CIs were estimated using conditional logistic regression models to assess the associations between categorized mtDNAfb and future risk of NHL, controlling for age, body mass index, number of cigarettes smoked per day, number of pack-years, and mtDNAcn. A total of 29 133 men (median [IQR] age, 57.2 [52.6-62.5] years) participated in ATBC Study. Higher mtDNAfb was associated with an increased risk of NHL (median OR, 2.89; 95% CI, 1.40-5.93) in a dose-dependent manner (quartile 2 vs 1 OR, 1.24; 95% CI, 0.43-3.40; quartile 3 vs 1 OR, 3.58; 95% CI, 1.39-9.24; quartile 4 vs 1 OR, 3.42; 95% CI, 1.30- 8.99; P = .004 for trend). This study's findings suggest that increased mtDNAfb is associated with an increased future risk of NHL. Additional studies are needed to confirm these findings, particularly among women and nonsmokers.

Pre-notifications increase retention in a 17-year follow-up of adolescents born very preterm

ObjectiveRetention is essential in follow-up studies to reduce missing data, which can cause bias and limit the generalizability of the results. We investigated whether pre-notification letters would increase the response rates of approval forms and questionnaires and reduce the need for post-notifications in a prospective follow-up study of 17-year-old adolescents.Study designand settingsThis long-term follow-up study included 269 adolescents were randomized (1:1) into a pre-notification group (n = 132) and a no pre-notification group (n = 137). The pre-notification letter was sent prior to the approval form and questionnaires. The outcome measures were the response rates to the approval forms and questionnaires and the rate of post-notifications required.ResultsThe adolescents who received the pre-notifications were more likely to return approval forms (n = 88/132, 67%) than the adolescents who did not receive the pre-notifications (n = 79/137, 58%) (OR 1.5, 95% CI 0.9–2.4). The rates of returned questionnaires were higher in the pre-notification group (n = 82/88, 93%) than in the no pre-notification group (n = 68/79, 86%) (OR 2.2, 95% CI 0.8–6.3). The adolescents who did not receive the pre-notifications were more likely to need the post-notifications than the adolescents who received the pre-notifications (OR 3.0, 95% CI 1.4 to 6.5).ConclusionsPre-notifications decreased the need for post-notifications and may increase retention in 17-year-old adolescents. Based on our findings, pre-notification letters are recommended in future follow-up studies in adolescents.Trial registrationThe Ethics Review Committee of the Hospital District of South-West Finland approved the 17-year PIPARI Study protocol in January 2018 (23.1.2018; 2/180/2012). The study has been registered to the SWAT repository as SWAT 179. Filetoupload,1457904,en.pdf (qub.ac.uk).

Psychotic-Like Experiences and Concurrent Substance Use Among People Who Use New Psychoactive Substances

Background New psychoactive substances (NPS) are a group of substances that mimic established drugs, e.g., cannabinoids, stimulants, and opioids. NPS use has been associated with psychotic-like experiences, but current research is limited. This study focused on NPS use and psychotic-like experiences in persons attending substance use services in South-West Finland. The primary aim was to evaluate if NPS use associates with psychotic-like experiences, and if the association is independent of comorbid psychotic illness. As a secondary aim, this study evaluated concurrent substance use among people who use NPS. Methods The study was based on a voluntary and anonymous survey administered on-site for people attending substance use services. The survey was conducted in 17 substance use service centers in South-West Finland in 2019, totaling 219 respondents. Information on substance use, service use due to psychotic episodes, and comorbid psychotic illness was collected. A validated PROD questionnaire was used for information on psychotic-like experiences. Results In all, 17% of 219 participants (n = 38) reported NPS use. After adjustments with comorbid psychotic illness, age, and gender, NPS use associated with PROD-screen positivity, i.e., reporting at least three psychotic-like symptoms. NPS use also associated with service use due to substance-induced psychotic episodes, and extensive use of several substances. Conclusions In this study, NPS use associated with psychotic-like experiences independently of comorbid psychotic illness. However, as NPS use is also associated with heavy use of several substances, this study implicates concurrent substance use as a confounding factor when studying NPS use, which should be considered in future research.

Adolescent social capital:An intergenerational resource?

There is abundant literature about the benefits of social capital in youth, but less is known of the origins of social capital. This study explores whether adolescents'social capital is shaped by their parents'social capital, their family's socioeconomic status (SES), and the socioeconomic profile of their neighborhood. The study uses cross-sectional survey data gathered from 12 to 13-year-old adolescents and their parents (n = 163) in Southwest Finland. For the analysis, adolescents'social capital was disaggregated into four dimensions: social networks, social trust, tendency to receive help, and tendency to provide help. Parents'social capital was measured both directly (parents'self-reports) and indirectly (adolescents'perceptions of their parents'sociability). The associations with the hypothesized predictors were analyzed using structural equation modeling. The results suggest that social capital is not directly intergenerationally transmissible the way some biologically heritable traits are. Yet, parents'social capital shapes youngsters'perception of their sociability, and that, in turn, predicts each dimension of adolescents'social capital. Family SES is positively related to young people's reciprocal tendency, but the pathway flows indirectly through parents'social capital and adolescents'perception of parents'sociability. Conversely, a disadvantaged socioeconomic neighborhood is directly negatively associated with adolescents'social trust and tendency to receive help. This study suggests that, in the studied Finnish, relatively egalitarian context, social capital is (at least partly) transmissible from parents to children, not directly, but indirectly through the mechanism of social learning.

Analytical workflow to trace lead sources in fill-derived soils in Turku, Southwest Finland

We present an analytical workflow scheme to trace the source of lead and to estimate risks to lead contaminated soil and demonstrate the methods with test sites from the city of Turku. This workflow includes lead concentration, sequential extractions, mineralogical characterization, and isotope composition. Lead concentrations higher than 100 mg/kg were found in 16 out of 219 urban topsoil samples in the city of Turku during soil geochemical baseline mapping. Ten samples were selected for detailed geochemical and mineralogical studies. Most of the elevated Pb concentrations were measured from fill-derived soils. Mineralogical investigations using FE-SEM-EDS demonstrated that Pb exists in various types of particles and compounds in the Turku topsoil samples. Most of the particles appear to be of anthropogenic origin. The Pb isotopic compositions measured on individual Pb-bearing particles using laser ablation MC-ICP-MS in Turku soil rule out their origin from Finnish and Swedish bedrock. Thus, Pb in the fill-derived soils must have been imported from other regions. Based on the combined use of traditional geochemical study and advanced micro-analytical techniques, it was found that Pb in urban fill-derived soils is bound to various carrier phases and has several pollution sources. When Pb-containing urban soil is reused in city constructions, care should be taken to prevent direct contact with the Pb-containing soil and dust generation at such sites.

Impacts of chemical precipitation of phosphorus with polyaluminum chloride in two eutrophic lakes in southwest Finland

ABSTRACT In an attempt to improve water quality in 2 eutrophic shallow Finnish lakes, Kirkkojärvi and Littoistenjärvi, phosphorus precipitation with polyaluminum chloride was performed in June 2002 and May 2017, respectively. Here we compare the effects of the chemical treatment between the lakes to enhance our understanding of the mechanisms involved and to improve the predictability of similar management actions in the future. All plankton was killed in the treatment, but phytoplankton recovered in 4 weeks and crustacean zooplankton in 2 months. Because removal fishing had not been successful, the chemical dosage in Kirkkojärvi was intentionally set so high that the treatment killed all fish. In Littoistenjärvi, pH was adjusted so that most fish survived. In Kirkkojärvi, the summer phosphorus (TP) and chlorophyll (Chl-a) concentrations 3 years after treatment dropped by 85% and 88% compared to those recorded 3 years before treatment. Cyanobacterial biomass declined by 88%, with only occasional blooms appearing in 3 of 22 years. The average TP and Chl-a of the post-treatment period 2006–2020 indicated substantial improvement in the ecological state from “bad” to “moderate” rating of the EU Water Framework Directive (WFD). In Littoistenjärvi, the corresponding declines due to the Al treatment were 72% in TP and 87% in Chl-a concentration, and 92% in cyanobacterial biomass. Longevity of treatment effects was estimated using the upper boundaries of the WFD quality classes as the target values. Water quality changes followed the internal loading of TP, affected by temperature and pH.

Water blister geomorphology and subglacial drainage sediments: an example from the bed of the Fennoscandian Ice Sheet in SW Finland

Abstract This study presents the first light detection and ranging (LiDAR)-based morphometric description of a water blister from a past ice-sheet bed caused by rapid supraglacial drainage. The blister formed during the rapid early Holocene deglaciation of the Fennoscandian Ice Sheet (FIS). It is located in southwest Finland within a subglacial meltwater route interpreted to represent the transition from a distributed to a channelized drainage system. A LiDAR digital elevation model was supplemented with sedimentological and ground-penetrating radar data on blister outflow channels and sedimentology of downflow polymorphous mounds and ridges (PMRs). Unlike the water blisters recorded from the rapid drainage of supraglacial lakes on the Greenland Ice Sheet, the smaller blister size here was either due to crevasse or moulin drainage, or was a supraglacial lake drainage that tapped into a pre-existing, relatively efficient drainage system and related semi-sorted sediments, promoting rapid drainage and reworking of PMRs along the meltwater route. The preservation potential or exposure probability of blister marks is presumably low but they can provide important information about evolution of subglacial drainage systems that is of value to modern interpretations of glacial hydrology.

Enterovirus D68 Outbreak in Children, Finland, August–September 2022

We observed an intense enterovirus D68 outbreak in children in southwest Finland in August-September 2022. We confirmed enterovirus D68 infection in 56 children hospitalized for respiratory illnesses and in 1 child with encephalitis but were not able to test all suspected patients. Continuing surveillance for enterovirus D68 is needed.