Current State of Research on the Risk of Morbidity and Mortality Associated with Air Pollution in Korea

PURPOSE: The effects of air pollution on health can vary regionally. Our goal was to comprehensively review previous epidemiological studies on air pollution and health conducted in Korea to identify future areas of potential study. MATERIALS AND METHODS: We systematically searched all published epidemiologic studies examining the association between air pollution and occurrence of death, diseases, or symptoms in Korea. After classifying health outcomes into mortality, morbidity, and health impact, we summarized the relationship between individual air pollutants and health outcomes. RESULTS: We analyzed a total of 27 studies that provided 104 estimates of the quantitative association between risk of mortality and exposure to air pollutants, including particulate matter with aerodynamic diameter less than 10 µm, particulate matter with aerodynamic diameter less than 2.5 µm, sulfur dioxide, nitrogen dioxide, ozone, and carbon monoxide in Korea between January 1999 and July 2018. Regarding the association with morbidity, there were 38 studies, with 98 estimates, conducted during the same period. Most studies examined the short-term effects of air pollution using a time series or case-crossover study design; only three cohort studies that examined long-term effects were found. There were four health impact studies that calculated the attributable number of deaths or disability-adjusted life years due to air pollution. CONCLUSION: There have been many epidemiologic studies in Korea regarding air pollution and health. However, the present review shows that additional studies, especially cohort and experimental studies, are needed to provide more robust and accurate evidence that can be used to promote evidence-based policymaking.

Obituary: Dr. Hyun-Sul Lim's (1952-2018) life as an epidemiologist, occupational and environmental medicine researcher, and family physician / 한국역학회지

No abstract available.

Health effects of particulate matter

Particulate matter is an air pollutant emitted from both natural and anthropogenic sources, and its adverse health effects have been well documented in time-series analyses and cohort studies. The effect size of particulate matter exposure—a roughly 0.5% increase in mortality for each 10 µg/m³ increment of short-term exposure to particulate matter with aerodynamic diameter ≤10 µm and approximately a 10% increase for each 10 µg/m³ increment of long-term exposure to particulate matter with aerodynamic diameter ≤2.5 µm—is small compared to other risk factors, but the exposure is involuntary and affects the entire population, which makes particulate matter pollution an important public health issue. The World Health Organization and Korean government have both established guidelines for particulate matter concentrations, but the Korean guideline is less stringent than that of the World Health Organization. The annual mean concentration of particulate matter in Korea is decreasing, but the trend seems to be slowing. In addition to policy efforts to reduce particulate matter emission, personal approaches such as the use of face masks and air purifiers have been recommended. Personal approaches may not solve the fundamental problem, but can provide temporary mitigation until efforts to reduce emission make progress.

Guidelines for recognition of occupational cancers in Korea: the results of scientific review by Korean Society of Occupational and Environmental Medicine (2013–2016)

This thematic collection includes the articles to review eleven occupational cancer related risks or working conditions and to propose the guidelines of S. Korea.

An aggravated return-to-work case of organic solvent induced chronic toxic encephalopathy

BACKGROUND: Organic solvent-induced chronic toxic encephalopathy (CTE) is known as a non-progressive disorder that does not progress after diagnosis. The authors present a case those symptoms worsened after continued exposure to organic solvent after returning to work. Because such a case has not been reported in South Korea to the best of our knowledge, we intend to report this case along with literature review. CASE PRESENTATION: A 59-year-old man, who performed painting job at a large shipyard for 20 years, was receiving hospital treatment mainly for depression. During the inpatient treatment, severe cognitive impairment was identified, and he visited the occupational and environmental medicine outpatient clinic for assessing work relatedness. In 1984, at the age of 27, he began performing touch-up and spray painting as a shipyard painter. Before that he had not been exposure to any neurotoxic substances. In 2001, at the age of 44, after 15 years of exposure to mixed solvents including toluene, xylene and others, he was diagnosed with CTE International Solvent Workshop (ISW) type 2A. After 7 years of sick leave, he returned to work in 2006. And he repeated return-to-work and sick leave in the same job due to worsening of depressive symptoms. He had worked four times (2006–2010, 2011–2011, 2011–2011, 2016–2017) for a total of 5 years as a shipyard painter after first compensation. During the return-to-work period, the mean values of the mixed solvent index ranged from 0.57 to 2.15, and except for a one semiannual period, all mean values were above the standard value of 1. We excluded other diseases that can cause cognitive impairment like central nervous system diseases, brain injury, psychological diseases and metabolic diseases with physical examinations, laboratory tests, and brain image analysis. And finally, throughout neuropsychological tests, an overall deterioration in cognitive function was identified compared to 2002, and the deterioration types was similar to that often shown in the case of CTE; thus a diagnosis of CTE (ISW) type 3 was made. CONCLUSION: This case is showing that CTE can go on with continued exposure to mixed solvents. Appropriate “fitness to work” should be taken to prevent disease deterioration especially for the sick leave workers.

Obituary: Dr. Hyun-Sul Lim's (1952-2018) life as an epidemiologist, occupational and environmental medicine researcher, and family physician / 한국역학회지

No abstract available.

Expert clinician's perspectives on environmental medicine and toxicant assessment in clinical practice

BACKGROUND@#Most clinicians feel ill-equipped to assess or educate patients about toxicant exposures, and it is unclear how expert environmental medicine clinicians assess these exposures or treat exposure-related conditions. We aimed to explore expert clinicians' perspectives on their practice of environmental medicine to determine the populations and toxicants that receive the most attention, identify how they deal with toxicant exposures and identify the challenges they face and where they obtain their knowledge.@*METHODS@#A qualitative study involving semi-structured interviews with expert environmental clinicians in Australia and New Zealand was conducted. Interviews were recorded and transcribed, and themes were identified and collated until no new themes emerged.@*RESULTS@#Five dominant themes emerged from 16 interviews: (1) environmental medicine is a divided profession based on type of practice, patient cohort seen and attitudes towards nutrition and exposure sources; (2) clinical assessment of toxicant exposures is challenging; (3) the environmental exposure history is the most important clinical tool; (4) patients with environmental sensitivities are increasing, have unique phenotypes, are complex to treat and rarely regain full health; and (5) educational and clinical resources on environmental medicine are lacking.@*CONCLUSIONS@#Environmental medicine is divided between integrative clinicians and occupational and environmental physicians based on their practice dynamics. All clinicians face challenges in assessing toxicant loads, and an exposure history is seen as the most useful tool. Standardised exposure assessment tools have the potential to significantly advance the clinical practice of environmental medicine and expand its reach across other clinical disciplines.

Application of Assessment Tools to Examine Mental Health in Workplaces: Job Stress and Depression

Despite the fact that the lifetime and yearly prevalence rates of mental illness continue rising, such diseases have only been acknowledged as involved in workplace health issue since the 2000s. Additionally, while the number of recognized cases of mental illnesses is rather low compared to their prevalence, they have a high likelihood of causing significant problems, including fatalities. Many workers are terrified of losing their jobs due to mental illness and therefore attempt to hide their mental health problems. For this reason, clinicians involved in occupational and environmental medicine should focus on interviews or screenings to identify such hidden mental health problems. More specifically, it would be helpful to evaluate job stress and depression in workplaces to ensure appropriate preventive actions and thereby reduce the prevalence of mental illness. Job stress not only causes mental illness and dissatisfaction with work, but also can increase the prevalence and morbidity of medical diseases, as well as other physical health problems. Depression is a major contributor to work loss and absence with effects surpassing almost all of the chronic medical disorder. These facts show why measure of job stress and depression should be highlighted in the occupational settings. This article introduces a variety of assessment tools to examine mental health, particularly stress and depression, in workplaces. These tools can be used by clinicians or professionals involved in the mental health, occupational safety, or health service fields for running diagnostics or screening tests.

Los efectos que ha provocado la sequía 2013-2016 en las manifestaciones de ansiedad y depresión en hombres y mujeres de la comunidad rural La China y qué percepción tienen precedente al fenómeno / The effects caused by the 2013-2016 drought in the manifestations of anxiety and depression in men and women in the rural community of China and what perception precedes the phenomenon

OBJETIVO: Analizar los efectos de la sequía 2013-2016 en las manifestaciones de ansiedad y depresión en hombres y mujeres de la comunidad rural La China, Ciudad Darío, Matagalpa y su percepción precedente al fenómeno. DISEÑO: Se trató de un estudio mixto cuali-cuantitativo, con diseño explicativo secuencial (DEXPLIS), de corte transversal. Se realizó con una muestra estadística del 44% de la población meta para un primer estudio exploratorio no probabilístico compuesta por 21 hombres y 47 mujeres subdivididos en tres franjas de edad comprendidas entre los 25- 60 años, que vivieron el período de la sequía, con capacidad mnemónica para recordar el período precedente a ella. Para recopilar la información, se utilizó el cuestionario de la OMS "A User's Guide to the Self Reporting Questionnaire" (SRQ) adaptado para fines de esta investigación y un grupo focal de 5 hombres y 3 mujeres realizado para comprender las causas y efectos de los trastornos afectivos de la comunidad dimensionados a partir de los presupuestos del SRQ y procesados a través del programa Atlas-ti. RESULTADOS: Las personas encuestadas manifestaron estados afectivos que se han producido o incrementado a raíz de tres años de sequía prolongada: agotamiento constante y enfermedades, pérdida de interés, baja autoestima, temblor de manos, aumento de nerviosismo, dolores de cabeza y de estómago, insomnio, e inclusive, ideación suicida. El principal factor ha sido mucha preocupación y estrés por falta de producción debido a la escasez de lluvias. El manejo del agua es un fenómeno que en la memoria del grupo focal, empieza a partir del huracán Mitch (1998). Es decir, los desastres provocan inestabilidad emocional incrementando las condiciones de vulnerabilidad ambiental y psico-social que aumentan las desigualdades en la salud y el bienestar. En el análisis de género, las mujeres resultaron con mayores trastornos afectivos; aun así, son más resilientes frente a las adversidades ya que buscan alternativas de sobrevivencia (migración laboral principalmente) y búsqueda de apoyo social que resulta ser un factor protector. Las edades de mayor riesgo, resultaron los hombres de 35-44 años y el grupo de edad 45-60 años

Perception of and attitude toward ethical issues among Korean occupational physicians

BACKGROUND: Occupational physicians (OPs) have complex relationships with employees, employers, and the general public. OPs may have simultaneous obligations towards third parties, which can lead to variable conflicts of interests. Among the various studies of ethical issues related to OPs, few have focused on the Korean OPs. The aim of the present survey was to investigate the ethical contexts, the practical resolutions, and the ethical principles for the Korean OPs. METHODS: An email with a self-administered questionnaire was sent to members of the Korean Society of Occupational and Environmental Medicine, comprising 150 specialists and 130 residents. The questionnaire was also distributed to 52 specialists and 46 residents who attended the annual meeting of the Korean Association of Occupational and Environmental Clinics in October 2015, and to 240 specialists by uploading the questionnaire to the online community ‘oem-doctors’ in February 2016. The responses to each question (perception of general ethical conflicts, recognition of various ethical codes for OPs, core professional values in ethics of occupational medicine, and a mock case study) were compared between specialists and residents by the chi-squared test and Fisher’s exact test. RESULTS: Responses were received from 80 specialists and 71 residents. Most participants had experienced ethical conflicts at work and felt the need for systematic education and training. OPs suffered the most ethical conflicts in decisions regarding occupational health examination and evaluation for work relatedness. Over 60% of total participants were unaware of the ethical codes of other countries. Participants thought ‘consideration of worker’s health and safety’ (26.0%) and ‘neutrality’ (24.7%) as the prominent ethical values in professionality ofoccupational medicine. In mock cases, participants chose beneficence and justice for fitness for work and confidential information acquired while on duty, and beneficence and respect for autonomy in pre-placement examinations. CONCLUSIONS: This study evaluated the current perception of and attitude toward ethical issues among the Korean OPs. These findings will facilitate the development of a code of ethics and the ethical decision-making program forthe Korean OPs. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s40557-017-0182-z) contains supplementary material, which is available to authorized users.

Comparative Study on Awareness Topical and Oral Steroid Use Awareness / 대한피부과학회지

BACKGROUND: Topical and oral steroids are widely prescribed in dermatology. While interest in steroid use has increased rapidly, people have also acquired misinformation that causes rampant fears. OBJECTIVE: To identify fears and misunderstandings about steroid use by comparing doctors' attitudes and treatment and non-treatment group experiences with steroid use. METHODS: A total of 346 participants including outpatients who visited the Department of Dermatology at Hallym University Sacred Heart Hospital, physicians who work at the hospital, and visitors to its Department of Occupational and Environmental Medicine completed questionnaires. RESULTS: The topical treatment group had a high response rate of 46.7% regarding feeling “somewhat anxious” about using topical steroids, while the oral treatment group had a high response rate of 53.8% regarding feeling “somewhat anxious” about using oral steroids. With respect to information about the adverse effects of steroid use, those in the non-experience group obtained their information mostly from the Internet (67.5%) or the media (47.5%), whereas those in the topical treatment group obtained their information from product guides (48%) and doctors (38.7%). Meanwhile, the oral treatment group acquired information from acquaintances (39.7%) or doctors (32.1%). CONCLUSION: Dermatologists must evaluate the validity of the information that patients have about the adverse effects of topical and oral steroid use as well as the resulting phenomenon of steroid phobia. If the information possessed by patients is inaccurate, clinicians must provide a full understanding and proper education to enhance patient satisfaction and treatment compliance and success rates.

A Study on Heuristic Transportation Routes of Patients with Acute Dysbarism for the Best Prognosis

PURPOSE: Acute dysbarism is a potentially lethal injury associated with environmental medicine. Therefore, prompt treatment, including transportation of victims, is important for the best prognosis. The aim of this study was to examine transportation routes of patients with acute dysbarism for the best prognosis in Korea. METHODS: Geography of South Korea was analyzed using the geographic information system (GIS). The study examined two scenarios using transportation analysis, which relies on a GIS base and pressure variation during air and ground transportation. Given the practical assumptions, we propose some heuristic transportation routes based on the simulation of altitude, transportation time, and availability of related factors. RESULTS: Currently, transportation by ground to the treatment facilities always passes high altitude areas above 152 feet. Also, available helicopters for air transportation could not approach the treatment facilities due to the limitation of flying distance and insufficiency of medical staff and treatment equipment. Altitude variation and delayed time were identified during the period of transportation by ground from Ganneung or Incheon to Tongyoung. Heuristic algorism through the above facts recommends air transport along coasts as the best method for transportation from Ganneung or Incheon to Tongyoung. CONCLUSION: In Korea, transportation by ground was not expected to result in the best prognosis for patients with acute dysbarism. Transportation by air should be considered first as the method of transportation. Also, for the best treatment of patients with acute dysbarism, additional treatment facilities need to be established in the west coast region.

Acute Occupational Poisoning in Korea / 이화의대지

Although acute occupational poisonings are very rare officially, it seems that there are a considerable number of unreported cases seen from non-intentional poisoning cases of the national injury and poisoning survey on discharged patients. Establishing a proper national surveillance system for acute occupational poisonings is needed. It is difficult for clinical physicians to diagnose acute occupational poisonings appropriately because the victims who usually are not mentally alert can not provide the information on the workplace hazard. Consulting a specialist of occupational and environmental medicine may help to reveal the cause of poisoning. Furthermore, reporting to the public organization such as workers health center and Korea occupational safety and health is helpful to prevent additional injuries.

Residency programs and the outlook for occupational and environmental medicine in Korea

OBJECTIVES: This study investigated the implementation of training courses and the overall outlook for occupational and environmental medicine (OEM) in Korea. We described the problems facing OEM residency programs in Korea, and reviewed studies dealing with the specialty of occupational health in developed countries in order to suggest directions of improvement for the OEM training courses. METHODS: We surveyed 125 OEM residents using a questionnaire in August 2012. A total of 23 questions about the training environment, residency programs, preferred institutions for post-licensure employment, and the outlook for OEM specialists were included in the questionnaire and analyzed according to the type of training institution and residency year. Responses from 88 residents (70.4 %) were analyzed. RESULTS: The major responsibilities of OEM residents were found to vary depending on whether they were trained in research institutes or in hospitals. OEM residents had a lower level of satisfaction with the following training programs: toxicology practice (measurements of biological markers, metabolites, and working environments), and OEM practice (environmental diseases and clinical training involving surgery). When asked about their eventual place of employment, OEM residents preferred institutions providing special health examinations or health management services. OEM residents reported a positive outlook for OEM over the next 5 years, but a negative outlook for the next 10 years. CONCLUSIONS: Although a standardized training curriculum for OEM residents exists, this study found differences in the actual training courses depending on the training institution. We plan to standardize OEM training by holding a regional conference and introducing open training methods, such as an open hospital system. Use of Korean-language OEM textbook may also reduce differences in the educational programs of each training institution. Toxicology practice, environmental diseases, and clinical training in surgery are areas that particularly need improvement in OEM residency training programs.

El Estado y la educación Ambiental Comunitaria en el Perú / The State and community Environmental Education in Peru

La salud ambiental, según la organizacòn Mundial de la Salud es "una disciplina que comprende aquellos aspectos de la Salud_humana, incluìda la calidad de vida, el bienestar social,entre otros, que son determinados por factores ambientales físicos; químicos, biológicos, sociales y psicosociales. También se refiere a la teoría y práctica de evaluar, corregir, controlar y prevenir aquellos factores en el medio ambiente que pueden potencialmente afectar adversamente la salud de presentes y futuras generaciones". En este contesto la cultura ambiental es fundamental en una sociedad para establecer conductas y corrientes de opiniòn tendientes al cuidado del ambiente asociado a la salud.

Environmental health, according to the World Organizacon of Health is "a discipline that comprises those Salud_humana aspects, including quality of life, social welfare, etc., which are Physical determined by environmental factors; chemical, biological, social and psychosocial. It also refers to the theory and practice of assessing, correcting, controlling and preventing those factors in the environment that can potentially affect adversely the health of present and future generations". This answer is critical environmental culture in a society to establish behaviors and current opinion aimed at caring for the environment associated health.

Underwater and Hyperbaric Medicine as a Branch of Occupational and Environmental Medicine

Exposure to the underwater environment for occupational or recreational purposes is increasing. As estimated, there are around 7 million divers active worldwide and 300,000 more divers in Korea. The underwater and hyperbaric environment presents a number of risks to the diver. Injuries from these hazards include barotrauma, decompression sickness, toxic effects of hyperbaric gases, drowning, hypothermia, and dangerous marine animals. For these reasons, primary care physicians should understand diving related injuries and assessment of fitness to dive. However, most Korean physicians are unfamiliar with underwater and hyperbaric medicine (UHM) in spite of scientific and practical values. From occupational and environmental medicine (OEM) specialist's perspective, we believe that UHM should be a branch of OEM because OEM is an area of medicine that deals with injuries caused by physical and biological hazards, clinical toxicology, occupational diseases, and assessment of fitness to work. To extend our knowledge about UHM, this article will review and update on UHM including barotrauma, decompression illness, toxicity of diving gases and fitness for diving.

The Launch of Annals of Occupational and Environmental Medicine

No abstract available.

Congratulatory Message for the New International Journal, Annals of Occupational and Environmental Medicine

No abstract available.

Seven Cases of Respiratory Symptoms Caused by Acute Ozone Exposure from an Electronics Company / 대한산업의학회지

BACKGROUND: Ozone is a colorless, pungent, and highly reactive gas. It can cause headaches, burning eyes, irritation to the respiratory passages, and dyspnea. This article describes cases of respiratory difficulty associated with acute ozone exposure from an electronics company that manufactures touchscreen. CASE REPORT: Seven young female workers visited the Department of Occupational and Environmental Medicine, complaining of cough, dyspnea, and chest discomfort that started within two days at work processing a touchscreen with ozone (0.103 ppm ozone detected in the their workplace). Other; symptoms observed included rhinorrhea, headaches, and dizziness. There was a temporary improvement in symptoms upon taking a day off, but their symptoms deteriorated upon continuing work again-suggesting the ozone exposure in their work environment was responsible for their symptoms. The results of pulmonary function and blood laboratory tests were normal; however, laryngoscopy and nasal endoscopy identified three cases of inflammation on laryngeal, intranasal, or vocal cord regions. CONCLUSIONS: Based on the levels of ozone detected in the workplace and clinical symptoms presented, we conclude that the respiratory symptoms in these cases were caused by excessive ozone exposures.