Reading Habits of Deaf and Hard of Hearing Adults

Few studies exist on the reading habits of the deaf population, and most of those that do were published more than 20 years ago. Hence, changes in reading habits due to the availability to the deaf population of online reading material and portable electronic devices have likely occurred. Additionally, in the hearing population, confinement causes changes in reading habits. We used an online questionnaire to compare the reading habits of 102 deaf and hard of hearing adult residents of Spain both before and during COVID-19 confinement. In general, more reading occurred during confinement, although not all participants showed this pattern: Regular readers read more during lockdown. Motivations for reading were largely unaffected by confinement. Furthermore, the time spent reading was not related to the availability of books at home: More was read in digital format during confinement.

Changes in the characteristic of dietary and lifestyle during Covid-19 lockdown in different countries: A systematic review

Due to the covid-19 pandemic, governments were forced to adopt lockdown policies to effectively control the pandemic. These restrictions increased anxiety, depression, and lifestyle changes. This systematic review aims to analyze changes in dietary patterns in the worldwide population during the COVID-19 lockdown. 11 studies were selected from the 1412 founds after searching in three databases. Searching keywords were: "Change dietary”, "COVID-19 dietary” "Confinement dietary”. Inclusion criteria were: studies that collected people's dietary patterns during the COVID-19 lockdown and recorded the consumption of food groups and the variations in lifestyle habits. This research found that people increased their consumption of food. People increased their sedentary hours, slept more but exercised less, leading to gain weight during the lockdown, as well as a poorer sleeping quality and higher anxiety levels.Alternate : Debido a la pandemia de COVID-19, los gobiernos se vieron obligados a tomar medidas de confinamiento para controlar eficazmente el contagio. Sin embargo, después de un tiempo de control al poblado, estas restricciones hicieron la gente tener más ansiedad y depresión, incluso cambiar el estilo de vida.

‘Cocooning' in prison during COVID-19: Findings from recent research in Ireland

The advent of COVID-19 prompted the enforced isolation of elderly and vulnerable populations around the world, for their own safety. For people in prison, these restrictions risked compounding the isolation and harm they experienced. At the same time, the pandemic created barriers to prison oversight when it was most needed to ensure that the state upheld the rights and wellbeing of those in custody. This article reports findings from a unique collaboration in Ireland between the Office of the Inspector of Prisons – a national prison oversight body – and academic criminologists. Early in the pandemic, they cooperated to hear the voices of people ‘cocooning' – isolated because of their advanced age or a medical vulnerability – in Irish prisons by providing journals to this cohort, analysing the data, and encouraging the Irish Prison Service to change practices accordingly. The findings indicated that ‘cocooners' were initially ambivalent about these new restrictions, both experiencing them as a punishment akin to solitary confinement, and understanding the goal of protection. As time passed, however, participants reported a drastic impact on their mental and physical health, and implications for their (already limited) agency and relationships with others, experienced more or less severely depending on staff and management practices. The paper also discusses the implications for prison practices during and following the pandemic, understanding isolation in the penological context, and collaboration between prison oversight bodies and academics.

Psychoeducation and emotional regulation in times of confinement: Feasibility and interest of YouTube videos of dialectical behavioral therapy

Introduction: Dialectical Behavior Therapy (DBT) aims to decrease emotional dysregulation, particularly through psychoeducation groups targeting skills learning. In March 2020, the confinement due to COVID-19 abruptly interrupted these groups. We continued skills training through YouTube videos. Our objective is to evaluate the feasibility of this format during the confinement. Method(s): All the participants in the DBT skills group carried out in Strasbourg were included (n = 37). The psychoeducational videos were published biweekly during the confinement on the YouTube channel "GREMO HUS". Participants were encouraged to view these videos by calls/messages. One month after the end of the confinement, an online questionnaire assessed satisfaction. Result(s): In total, 92% of patients responded. Of the 34 respondents, 28 (82%) had watched at least one video, and 32% had watched more than 6 videos. A very large majority of users were satisfied with the videos. Seventy-nine percent said they were very helpful in understanding the skills, and 77% thought they had used the DBT skills more frequently. All but one said that the skills helped them to overcome difficulties in times of confinement. Discussion(s): Our study is the first to interview patients directly regarding DBT YouTube videos. These videos were considered relevant by participants during the confinement period. Their use could compliment DBT skills training groups, and serve as a training support for therapists.Copyright © 2021 Elsevier Masson SAS

Impact of Nationwide Lockdowns Resulting from The First Wave of the COVID-19 Pandemic on Food Intake, Eating Behaviours and Diet Quality: A Systematic Review.

The lockdowns resulting from the first wave of the COVID-19 pandemic impacted deeply on all life activities, including diet. We performed a systematic review to investigate changes in food intake, eating behaviours and diet quality during lockdown as compared to before. A literature search was performed using three electronic databases from inception until June 13, 2021. Observational studies evaluating changes in general populations during the COVID-19 pandemic lockdown were eligible. Out of 1,963 studies achieved from the search strategy, 95 met inclusion criteria (85 on adults, 10 on children/adolescents), and the majority were of high quality (72.6%). Most of the studies were web-based surveys using convenience sampling, mainly focused on variations in the consumption of foods and eating behaviours during lockdown, whereas only 15 studies analysed diet quality through dietary indices. On the basis of the definition of a healthful diet as reflected by a traditional Mediterranean diet, an increase in recommended foods such as fruit and vegetables, legumes, cereals and olive oil was observed, although a sharp decrease in fish intake and an increase in dairy products were documented. Accordingly, a reduction in foods that should be eaten less frequently was reported, namely, red and processed meat. However, a higher consumption of unhealthy foods (e.g., snacks and sweets) was also observed. Results indicated improved diet quality in Europe, especially among Mediterranean countries, with the exception of France, while a switching to poor nutrient patterns was observed in Colombia and Saudi Arabia. Analyses of eating behaviours suggest an increase in food intake, number of daily meals and snacking. In conclusion, changes in intake of major food groups, apart from fish intake, were in line with the definition of a traditional Mediterranean diet, indicating a consistent moderate improvement of dietary habits worldwide. This review protocol was registered at https://www.crd.york.ac.uk/prospero/ as CRD42020225292.

Worsening of Parkinson's Disease After Termination of COVID-19 Quarantine Cannot Be Reversed Despite Resumption of Physiotherapy.

In a retrospective analysis, we recently reported findings on the detrimental motor effects of interrupted physiotherapy following the COVID-19 pandemic in parkinsonian patients. Using an extended follow-up period, we investigated the beneficial effect of reinstated physiotherapy on patients' disease severity and reversal of interruption-induced motor deterioration. Compared to before the COVID-19 outbreak, we observed persistence of motor disease worsening despite full resumption of state-of-the-art physical therapy suggesting that motor deterioration after discontinuation of physical therapy could not be compensated for. Therefore, and considering possible future crises, establishing means to safeguard continuation of physical therapy and to foster remote provision of care should be major goals.

A Retrospective Chart Review Evaluating Changes in 25-Hydroxyvitamin D Levels among Patients Attending the University Healthcare Centre during the COVID-19 Pandemic.

COVID-19-pandemic-related home confinement aids in limiting the spread of the virus but restricts exposure to sunlight, thereby possibly affecting 25(OH)D concentrations. This study aimed to investigate the effect of lockdown measures on 25(OH)D levels in outpatients visiting the healthcare centre over a period of two years. In this retrospective chart review, outpatients who visited a university healthcare centre for a health check-up over a period of two years were included. The patients' 25(OH)D serum levels and status were compared before, during, and after the lockdown periods. A total of 7234 patients were included in this study, with a mean age of 34.66 ± 16.78. The overall prevalence of 25(OH)D insufficiency, deficiency and sufficiency was 33.8%, 30.7% and 35.4%, respectively. The proportion of individuals with 25-(OH) D deficiency prior to lockdown was 29% and this proportion increased in the lockdown and post-lockdown periods to 31.1% and 32%, respectively. Although gender was less likely to have an impact on the 25 (OH) D level during the lockdown period (p = 0.630), we found an association between gender and 25 (OH) D status in the pre-lockdown and post-lockdown periods (p < 0.001 and p < 0.001, respectively). Another association between nationality and 25 (OH)D levels was found before, during and after the lockdown periods (p < 0.001). In addition, the youngest population, aged between 1 and 14, was strongly affected by the home confinement. Age had a positive and significant (p < 0.05) effect on 25 (OH) D status regardless of the different periods. Moreover, in the pre-lockdown period, male outpatients had 1.56 chance of having a sufficient level of 25 (OH)D. However, during the lockdown period, this chance decreased to 0.85 and then increased to 0.99 after the lockdown period. We found no statistically significant difference in the mean serum concentrations or in the prevalence of vitamin D insufficiency when we compared values from before, during and immediately after the COVID-19 lockdown period. However, there was a generally increased prevalence of vitamin D insufficiency in our study population. Another association between gender, nationality and age groups with 25(OH) D was found. Regular exposure to UVR is recommended for maintaining adequate vitamin D levels and to prevent vitamin D deficiency. Further research is needed to determine the best indications for vitamin D supplementation if confinement periods are extended and to consider the potential health consequences of prolonged confinement periods not only on vitamin D status but also on overall public health. The findings of this study may be considered by stakeholders for a targeted supplementation approach for risk groups.

[Impact of the French 2020 COVID-19 lockdown on the treatment and follow-up of patients with exudative age-related macular degeneration]. / Impact du confinement français en 2020 sur la prise en charge des patients atteints de dégénérescence maculaire liée à l'âge exsudative.

PURPOSE: To assess the impact of the measures taken during the lockdown period from March 17 to May 11, 2020 on the management of patients with exudative age related macular degeneration treated by intravitreal anti-VEGF injections at the University Hospital of Tours. METHODS: In this retrospective study, patients were included after analysis of the computerized medical records of patients with age related macular degeneration. Those who were treated for exudative age related macular degeneration who received at least 1 intravitreal injection in the 12 months prior and at least one consultation in the 6 months prior to the lockdown period, were included. The initial and final mean visual acuity were compared with a 5 letter non-inferiority margin. A subgroup analysis was performed according to outcomes. The visual acuities immediately after this period were also recorded. RESULTS: In all, 595 eyes of 493 patients were included. The mean initial visual acuity was 59.6 letters, vs. 58.5 for the final visual acuity, i.e. a difference of -1.13 letters with a lower limit of the confidence interval of less than 5. The visual acuity on release from lockdown was comparable to the other 2 measurements. Initial visual acuity and the number of missed treatments were the main factors associated with functional loss. CONCLUSION: Patients' visual acuity during the lockdown period was able to be maintained despite the restrictive measures and limitation of care access in France. The most common cause of substantial visual decline was missed intravitreal injections.

Gender-Based Violence in Women's Labor Relations in Mexico

The economic crisis caused by the pandemic due to the virus that produces the disease called COVID19 has caused unemployment to affect people who had some work activity, whether in stores, offices, cab drivers, or official agencies, among others. This global situation caused health authorities to order the closure of workplaces, negatively impacting employment and working conditions in Latin America and the Caribbean, causing a setback of more than a decade in progress achieved in labor participation. Furthermore, it is assumed that inequality and discrimination against women in the economy and the labor context in this confinement stage due to the pandemic generated by the SARSCoV-2 virus have impacted gender violence against women in Mexico.

Reflections on ethnographic fieldwork across a lifetime

In this ‘Tale from the Field', I reflect on the practice of ethnographic fieldwork with folk puppeteers over time, using my own experiences in a single fieldwork site at two points, 38 years apart. I describe my fieldwork as a graduate student in 1982 and as a professor towards the end of my career in 2020. I reflect on differences based on digital communication equipment and on my own changing positionality. My 2020 fieldwork was interrupted by the covid-19 confinement which adds a new wrinkle to contemporary participant observation.

The sense of loneliness in couples and the impact of the health crisis: A review of literature

Objective: The purpose of this review is to define the feeling of loneliness within a couple while taking into consideration the factors that lead a person to feel lonely in a couple or in a romantic relationship. Our goal is to understand the effects of the feeling of loneliness on these individuals during the global health crisis brought on by COVID-19 and to take these factors into account in designing effective therapeutic care. The different manifestations of loneliness in a couple should also be highlighted. Method(s): We used the PRISMA methodology to select the relevant studies. The keywords ("Solitude" or "Loneliness") and ("Couple" or "Married" or "Partnership") allowed us to select 19 references dealing with the theme. We conducted searches of the following databases: "Cairn", "PsychInfo and Psycarticle", "PubMed and Medline", "ScienceDirect" and finally, "Web of Science" in order to find articles covering a ten-year period. Result(s): There are different definitions for the subjective experience of loneliness. The review of the literature highlights the fact that loneliness can lead to positive or negative psychological consequences (it can lead to the development of creative capacity or, on the contrary, result in depression in some cases). Attachment patterns have been shown to be the basis for the tolerance of feelings of loneliness. Indeed, an anxious attachment would encourage the couple to avoid the feeling of loneliness. According to the literature, this defensive mechanism of seeking presence in the couple would make it possible to limit the impact of loneliness. This solitude depends on the level of relational quality within the couple. A poor relational quality would lead to greater loneliness and would impact intimate relationships. Loneliness is supposedly not experienced in the same way by men and women: Men seem to be more protected by marriage while women's level of loneliness may be higher because of the household chores they have to do. Men and women would nevertheless remain subject to the phenomena of contamination, i.e., when one of the partners feels lonely, the other will also be lonely. However, it seems that marriage protects against feelings of loneliness and its negative consequences. Loneliness does not have only negative effects. It can be beneficial for developing creativity and finding oneself. The periods of confinement during the COVID-19 crisis provided people with an increase in the amount of time they didn't normally have on a daily basis. This may have been beneficial for some people and can be associated with positive emotions. Individuals who spent the lockdowns with others felt less alone and experienced less psychological distress. However, confinements did produce some negative effects on couples. The increased stress of the pandemic and the constant proximity led to an increase in spousal abuse. The consequences of confinement for couples whose relationships were already troubled resulted in frequent separation and/or divorce. The potential for conflict was related to limited financial resources, not working, and the significant risk of contracting SARS COV-2. Conclusion(s): The articles dealing with the feeling of loneliness that we reviewed presented quantitative methods to the detriment of qualitative aspects and focused largely on the negative aspects of the feeling of loneliness. Other academic disciplines, such as sociology, demonstrate a lack of understanding concerning what is at stake with the feeling of loneliness. The articles intersect and tend to highlight the attachment relationships that are formed in childhood as a determining factor in the feeling of solitude later in life. The quality of the relationship, gender, and marital status are also factors to be considered. Loneliness has a clear influence on the well-being of the relationship but it is not an individual characteristic of the relationship itself. It finally appears as an individual characteristic with an impact on the assessment of the quality of the relationship and on the appreciatio of the spouse.Copyright © 2023 Elsevier Masson SAS

Le sentiment de solitude dans le couple et l'impact de la crise sanitaire : une revue de la littérature

Résumé Cette revue a pour objectif de faire état de la littérature sur le sentiment de solitude au sein du couple, tout en comprenant les facteurs qui conduisent une personne à se sentir seule dans un couple ou dans une relation amoureuse. Il s'agit de considérer les effets du sentiment de solitude sur les couples et les différentes formes qu'il peut prendre durant la période de pandémie liée au COVID-19. Ainsi, cette revue de littérature met en lumière le fait que la solitude peut entraîner des conséquences psychologiques positives ou négatives et que les types d'attachement se révèlent être le fondement de la tolérance au sentiment de solitude. Au sein du couple, la solitude et ses impacts déprendront du niveau de qualité relationnelle, du genre et du statut matrimonial. Sous certains aspects, le mariage peut protéger du sentiment de solitude, mais il peut être malmené, comme ce fut le cas durant la pandémie mondiale de COVID-19. Le manque de communication entre les partenaires, l'anxiété liée à la pandémie et le fait de se retrouver avec soi-même ont renforcé un sentiment de solitude parfois déjà existant, au détriment de la durabilité des couples. Objective The purpose of this review is to define the feeling of loneliness within a couple while taking into consideration the factors that lead a person to feel lonely in a couple or in a romantic relationship. Our goal is to understand the effects of the feeling of loneliness on these individuals during the global health crisis brought on by COVID-19 and to take these factors into account in designing effective therapeutic care. The different manifestations of loneliness in a couple should also be highlighted. Methods We used the PRISMA methodology to select the relevant studies. The keywords ("Solitude” or "Loneliness”) and ("Couple” or "Married” or "Partnership”) allowed us to select 19 references dealing with the theme. We conducted searches of the following databases: "Cairn”, "PsychInfo and Psycarticle”, "PubMed and Medline”, "ScienceDirect” and finally, "Web of Science” in order to find articles covering a ten-year period. Results There are different definitions for the subjective experience of loneliness. The review of the literature highlights the fact that loneliness can lead to positive or negative psychological consequences (it can lead to the development of creative capacity or, on the contrary, result in depression in some cases). Attachment patterns have been shown to be the basis for the tolerance of feelings of loneliness. Indeed, an anxious attachment would encourage the couple to avoid the feeling of loneliness. According to the literature, this defensive mechanism of seeking presence in the couple would make it possible to limit the impact of loneliness. This solitude depends on the level of relational quality within the couple. A poor relational quality would lead to greater loneliness and would impact intimate relationships. Loneliness is supposedly not experienced in the same way by men and women: Men seem to be more protected by marriage while women's level of loneliness may be higher because of the household chores they have to do. Men and women would nevertheless remain subject to the phenomena of contamination, i.e., when one of the partners feels lonely, the other will also be lonely. However, it seems that marriage protects against feelings of loneliness and its negative consequences. Loneliness does not have only negative effects. It can be beneficial for developing creativity and finding oneself. The periods of confinement during the COVID-19 crisis provided people with an increase in the amount of time they didn't normally have on a daily basis. This may have been beneficial for some people and can be associated with positive emotions. Individuals who spent the lockdowns with others felt less alone and experienced less psychological distress. However, confinements did produce some negative effects on couples. The increased stress of the pandemic and the constant proximity led to an increase in spousal abuse. The consequences of confinement for couples whose relationships were already troubled resulted in frequent separation and/or divorce. The potential for conflict was related to limited financial resources, not working, and the significant risk of contracting SARS COV-2. Conclusion The articles dealing with the feeling of loneliness that we reviewed presented quantitative methods to the detriment of qualitative aspects and focused largely on the negative aspects of the feeling of loneliness. Other academic disciplines, such as sociology, demonstrate a lack of understanding concerning what is at stake with the feeling of loneliness. The articles intersect and tend to highlight the attachment relationships that are formed in childhood as a determining factor in the feeling of solitude later in life. The quality of the relationship, gender, and marital status are also factors to be considered. Loneliness has a clear influence on the well-being of the relationship but it is not an individual characteristic of the relationship itself. It finally appears as an individual characteristic with an impact on the assessment of the quality of the relationship and on the appreciation of the spouse.

Impacts of COVID-19 on Pakistan Society: Home Confinement, Social Survey Data and Maps Showing Diffusion

The purposes of this chapter are threefold: to discuss the impact of home confinement due to the pandemic, to analyze the results of a social survey about the impact of the pandemic on the general public, and to present maps showing the spread of virus in Pakistan. Not only in Pakistan, but throughout the world, the outcomes of the pandemic were mainly related to psychological and health issues. Emergency situations in global policy, such as pandemics, impact both physical and mental health. A country like Pakistan, which was already fragile and struggling from deflation, was badly affected by the lockdown imposed by the pandemic outbreak. Home confinement during the lockdown period severely impacted the health and economic conditions of communities at large. The effect is discussed in detail in this chapter. In a similar vein, a community-based survey was conducted of 1043 people residing in different areas in Pakistan. The purpose of the survey was to check the behavioral concerns of people towards the pandemic and their safety behavior. The variables used were adapted from existing studies and questions and modified to address the issues in this survey. The last section of this chapter discusses, with GIS maps, how the virus spread throughout the country. The survey instrument provided a general understanding of safety concerns of the people. GIS maps at provincial levels were generated to depict the spread of virus during the peak times of the pandemic. The chapter provides a clear picture of the country during the pandemic times and serves as a reference to understand the social side of pandemic in the country. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2022.

Physical activity level in Ecuadorian university students before and during confinement

The WHO established a world health emergency, confinement and social distancing for COVID-19. The purpose of the study was to determine the level of physical activity (PA) in Ecuadorian university students before and during confinement. A total of 1033 students (446 males and 587 females) from the Universities of Cuenca and the Catholic University of Cuenca, with a mean age of 23.23 years, participated in the study. The sample was selected by convenience, with a confidence level of 95% and a sampling error of 5%. The short version of the IPAQ questionnaire was used, which was applied online. The data were analyzed with the SPSS program, applying the Kolmogorov-Smirnov statistics, Pearson's coefficient test, t-test and independent samples tests. The students increased their weight (31.95%);in PA before and during quarantine by sex, there is a low but significant correlation;while, by age, there is a significant correlation in intense PA before confinement;and, in moderate PA and walking during isolation. Likewise, there is an increase in weight, a significant decrease in intense PA, being greater in men, slight in moderate PA, and in walking decreased in both sexes, and the time spent sitting increased. Confinement had a negative influence on the decrease in PA practice and increased women adapted better to confinement than men.

Separation, Loss, Confinement, and Change: How Evagrius Can Speak to the Experience of Lockdown

Separation, loss, confinement, and change have been imposed on entire populations du-ring the Covid-19 pandemic in the form of lockdowns aimed at limiting the spread of the virus. They are also central to Evagrian asceticism, where they establish the conditions for the change at which the monastic life aims, namely to begin to reverse the effects of the fall by restoring the soul to health. This paper examines how they do so in order to gain an understanding of their ascetic function. Following the Introduction, it outlines Evagrius' anthropology in order to lay the groundwork for its main theme, the healing of pathos through the practical life. Separation, loss, and confinement are each considered in turn by referencing Evagrius' descriptions of their ascetic function and his own experience of them. Next, the change at which they aim is described, again drawing upon a range of Evagrian material. The final section of the paper considers how Evagrius can speak to the experience of lockdown by endowing separation, loss, confinement with meaning and purpose in relation to spiritual awakening and growth, highlighting our freedom to choose our attitude to them, and acting as both our guide and our companion. © 2022, John Paul II Catholic University of Lublin. All rights reserved.

Clinical-epidemiological aspects of mental health in children during confinement by COVID-19

Introduction: Confinement during COVID-19 and associated stress can affect children's well-being. Objective: To determine the clinical-epidemiological aspects of mental health in children during COVID-19 confinement. Method: Cross-sectional, descriptive observational study carried out at Dr. Eduardo Agramonte Piña Provincial Teaching Pediatric Hospital in Camaguey, from January 1, 2021 to December 31, 2021 The universe and the sample consisted of 144 (women) with their children (144) who were admitted to Maceo, Adolescent, and Cardiology services, selected at random. The variables studied included: age group, sex, emotional disorders, risk factors (home geographic location, diet, practice of physical exercise, socioeconomic situation, social relationships and sleep disorders), and specialized care. Data were expressed in absolute values and percentages. Results: 57.6 % of mothers reported that during confinement, their children suffered from negative emotional reactions, 78.5 % had inadequate nutrition, 90.3 % had sleep disorders, and 70.1 % did not practice physical exercise. Children from rural areas presented less emotional disorders (22.9 %) than those from urban areas (74.0 %), being those who had average and high socioeconomic status the ones who presented less emotional disorders, 43.7 % and 13.3 % respectively. Those who socialized more reported fewer harmful emotional reactions (38.8 %). Conclusions: Data suggest that adequate nutrition, good social relationships, and physical exercise benefit children's mental health in isolation situations © Este material es publicado según los términos de la Licencia Creative Commons Atribución–NoComercial 4.0. Se permite el uso, distribución y reproducción no comerciales y sin restricciones en cualquier medio, siempre que sea debidamente citada la fuente primaria de publicación

Perceived Impacts of COVID-19 by Spanish University Students: Changes in the Physical and Social Environments

The COVID-19 pandemic has shattered health and brought about economic and social havoc to many countries. Spain is one of the hardest affected European countries in both the number of sick or deceased people and the ongoing socioeconomic consequences. Experts think that the current COVID-19 disaster will change our perception of the world and human relationships and lead us to a new reality for which we are likely not fully prepared. The main aim of this paper is to observe, describe and analyze Spanish people's perception of the post-COVID-19 reality. In order to approach the sample's perception of the new reality, a thorough qualitative and quantitative analysis of the available lexicon produced by a sample of 220 university students is carried out. The lexical association tests used in the available lexicon research allow access to the shared prototypic categorization. In this paper we specifically intend to analyze the perception the informants have-after the first months in the context of the so-called ʼnew normality'-on the following centers of interest presented as stimuli: society, city, countryside and environment. We will work with a sample with variations in sex, age and place of confinement. The global results show that the most central words in the categories of city and countryside seem conflicting, providing a more positive vision in the first case. Regarding the comparisons between groups according to the pre-stratification variables, certain differences are perceived not so much at the quantitative level as at the qualitative level. It will serve to design intervention strategies from both educational and preventative-health and administrative fields to provide society with the necessary tools to face future crises and recover from the worst possible consequences of the current situation. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2022.

Unraveling the O3-NOX-VOCs relationships induced by anomalous ozone in industrial regions during COVID-19 in Shanghai.

The COVID-19 pandemic promoted strict restrictions to human activities in China, which led to an unexpected increase in ozone (O3) regarding to nitrogen oxides (NOx) and volatile organic compounds (VOCs) co-abatement in urban China. However, providing a quantitative assessment of the photochemistry that leads to O3 increase is still challenging. Here, we evaluated changes in O3 arising from photochemical production with precursors (NOX and VOCS) in industrial regions in Shanghai during the COVID-19 lockdowns by using machine learning models and box models. The changes of air pollutants (O3, NOX, VOCs) during the COVID-19 lockdowns were analyzed by deweathering and detrending machine learning models with regard to meteorological and emission effects. After accounting for effects of meteorological variability, we find increase in O3 concentration (49.5%). Except for meteorological effects, model results of detrending the business-as-usual changes indicate much smaller reduction (-0.6%), highlighting the O3 increase attributable to complex photochemistry mechanism and the upward trends of O3 due to clear air policy in Shanghai. We then used box models to assess the photochemistry mechanism and identify key factors that control O3 production during lockdowns. It was found that empirical evidence for a link between efficient radical propagation and the optimized O3 production efficiency of NOX under the VOC-limited conditions. Simulations with box models also indicate that priority should be given to controlling industrial emissions and vehicle exhaust while the VOCs and NOX should be managed at a proper ratio in order to control O3 in winter. While lockdown is not a condition that could ever be continued indefinitely, findings of this study offer theoretical support for formulating refined O3 management in industrial regions in Shanghai, especially in winter.