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indoor air pollution

Chih-Fu Wei, Mei-Huei Chen, Ching-Chun Lin, Yueliang Leon Guo, Shio-Jean Lin, Wu-Shiun Hsieh, Pau-Chung Chen
BACKGROUND: Air pollution from biomass burning were associated with neurodevelopmental deceleration, but limited studies concerned about the effect of indoor biomass burning. Incense burning is a common household ritual practice in Taiwan, while past studies mainly focused on birth weight and allergic disease. OBJECTIVES: We aimed to find the association between incense burning exposure and children's neurodevelopment. METHODS: In Taiwan Birth Cohort Study (TBCS), a nationwide representative birth cohort study, children were assessed upon home interview with structured questionnaires upon six and eighteen months old...
March 17, 2018: Environment International
Daniela Dias, Oxana Tchepel
Analyzing individual exposure in urban areas offers several challenges where both the individual's activities and air pollution levels demonstrate a large degree of spatial and temporal dynamics. This review article discusses the concepts, key elements, current developments in assessing personal exposure to urban air pollution (seventy-two studies reviewed) and respective advantages and disadvantages. A new conceptual structure to organize personal exposure assessment methods is proposed according to two classification criteria: (i) spatial-temporal variations of individuals' activities (point-fixed or trajectory based) and (ii) characterization of air quality (variable or uniform)...
March 20, 2018: International Journal of Environmental Research and Public Health
Xin Dai, Gayan Bowatte, Adrian J Lowe, Melanie C Matheson, Lyle C Gurrin, John A Burgess, Shyamali C Dharmage, Caroline J Lodge
PURPOSE OF REVIEW: Glutathione S-transferase (GST) genes are involved in oxidative stress management and may modify the impact of indoor air pollution. We aimed to assess the influence of GST genes on the relationship between indoor air pollution and allergy/lung function. RECENT FINDINGS: Our systematic review identified 22 eligible studies, with 15 supporting a gene-environment interaction. Carriers of GSTM1/T1 null and GSTP1 val genotypes were more susceptible to indoor air pollution exposures, having a higher risk of asthma and lung function deficits...
March 20, 2018: Current Allergy and Asthma Reports
Tianqi Chen, Hua Liao
Solid fuels, such as coal, straw, and firewood are wildly used for cooking and heating in China, with the negative side effects of indoor air pollution and residential health problems. This article investigates the current and historical trend of China's disease burden caused by indoor air pollution (IAP) at the provincial level. The Global Burden Disease data set and national/provincial yearbooks are used. The results show the following: (1) In recent years, the burden of disease caused by IAP is decreasing; (2) in all health aspects, eastern coastal regions performed better than inland regions; (3) health risk is extremely severe in Henan, Sichuan, and Guizhou provinces; (4) IAP gives rise to serious diseases, including chronic obstructive respiratory diseases and cerebrovascular diseases...
March 1, 2018: Asia-Pacific Journal of Public Health
Dan Norbäck, Chan Lu, Juan Wang, Yinping Zhang, Baizhan Li, Zhuohui Zhao, Chen Huang, Xin Zhang, Hua Qian, Yuexia Sun, Jan Sundell, Qihong Deng
BACKGROUND: Few data exist on asthma and rhinitis across China in relation to indoor and outdoor air pollution, climate and socioeconomic factors. The main aim was to study associations between asthma, rhinitis and current respiratory symptoms among pre-school children across China and selected indoor and outdoor exposure and indicators of socio-economic status (SES) in mutually adjusted models. METHODS: Chinese children (3-6 yr.) (n = 39,782) were recruited from randomly selected day care centres in seven cities in China...
March 9, 2018: Environment International
Wei Du, Xinyue Li, Yuanchen Chen, Guofeng Shen
Solid fuels, an important source of severe Household Air Pollution (HAP) linked to many adverse health outcomes, has been widely consumed around the world. China consumes large amounts of solid fuels and suffers from serious indoor and outdoor air pollution. Though global HAP issues had been reviewed in previous literatures, peer-reviewed Chinese publications were seldom included in those reviews. We conducted a literature review on the studies of HAP and personal exposure in rural China with inputs from peer-reviewed publications in both English and Chinese...
March 8, 2018: Environmental Pollution
Gabrielle Wong-Parodi, M Beatrice Dias, Michael Taylor
BACKGROUND: Air quality affects us all and is a rapidly growing concern in the 21st century. We spend the majority of our lives indoors and can be exposed to a number of pollutants smaller than 2.5 microns (particulate matter, PM2.5 ) resulting in detrimental health effects. Indoor air quality sensors have the potential to provide people with the information they need to understand their risk and take steps to reduce their exposure. One such sensor is the Speck sensor developed at the Community Robotics, Education and Technology Empowerment Lab at Carnegie Mellon University...
March 8, 2018: JMIR MHealth and UHealth
Lorenzo Cecchi, Gennaro D'Amato, Isabella Annesi-Maesano
Allergies are complex diseases that result from interactions between multiple genetic and environmental factors. However, the increase in allergies observed in the past decades is explained exclusively by environmental changes occurring in the same period. Presently, the exposome, the totality of specific and nonspecific external environmental exposures (external exposome) to which a subject is exposed from preconception onward and their consequences at the organ and cell levels (internal exposome), is being considered to explain the inception, development, and exacerbations of allergic diseases...
March 2018: Journal of Allergy and Clinical Immunology
Chang Yu, Qiao-Feng Wu, Yong Tang, Shu-Guang Yu
Moxibustion is an effective therapy for treatment of a lot of clinical problems, but the ignited moxa-induced smoke containing harmful substances may bring about indoor air pollution to affect both patients' and medical workers' health. However, there is no standards about controlling indoor air quality (IAQ) for moxibustion rooms in China. In the present study, the authors reviewed newly-published articles about some substances released from moxa smoke as inhalable particles (PM 10 and PM 2.5), formaldehyde, benzene, methylbenzene, xylene, bene[α]pyrene, total volatile organic compounds, CO, CO2 , NO, SO2 , NH3 , O3 , etc...
February 25, 2018: Zhen Ci Yan Jiu, Acupuncture Research
Marnie F Hazlehurst, Elizabeth W Spalt, Tyler P Nicholas, Cynthia L Curl, Mark E Davey, Gregory L Burke, Karol E Watson, Sverre Vedal, Joel D Kaufman
Exposure estimates that do not account for time in-transit may underestimate exposure to traffic-related air pollution, but exact contributions have not been studied directly. We conducted a 2-week monitoring, including novel in-vehicle sampling, in a subset of the Multi-Ethnic Study of Atherosclerosis and Air Pollution cohort in two cities. Participants spent the majority of their time indoors and only 4.4% of their time (63 min/day) in-vehicle, on average. The mean ambient-source NO2 concentration was 5...
March 6, 2018: Journal of Exposure Science & Environmental Epidemiology
Se Ji Jung, Jodhbir Mehta, Louis Tong
The twenty-first century is fraught with dangers like climate change and pollution, which impacts human health and mortality. As levels of pollution increase, respiratory illnesses and cardiovascular ailments become more prevalent. Less understood are the eye-related complaints, which are commonly associated with increasing pollution. Affected people may complain of irritation, redness, foreign body sensation, tearing, and blurring of vision. Sources of pollution are varied, ranging from gases (such as ozone and NO2 ) and particulate matter produced from traffic, to some other hazards associated with indoor environments...
March 3, 2018: Ocular Surface
Fatma Omrane, Imed Gargouri, Moncef Khadhraoui, Boubaker Elleuch, Denis Zmirou-Navier
BACKGROUND: Sfax is a very industrialized city located in the southern region of Tunisia where heavy metals (HMs) pollution is now an established matter of fact. The health of its residents mainly those engaged in industrial metals-based activities is under threat. Indeed, such workers are being exposed to a variety of HMs mixtures, and this exposure has cumulative properties. Whereas current HMs exposure assessment is mainly carried out using direct air monitoring approaches, the present study aims to assess health risks associated with chronic occupational exposure to HMs in industry, using a modeling approach that will be validated later on...
March 5, 2018: BMC Public Health
Yaolin Lin, Jiale Zou, Wei Yang, Chun-Qing Li
PM2.5 pollution has become a severe problem in China due to rapid industrialization and high energy consumption. It can cause increases in the incidence of various respiratory diseases and resident mortality rates, as well as increase in the energy consumption in heating, ventilation, and air conditioning (HVAC) systems due to the need for air purification. This paper reviews and studies the sources of indoor and outdoor PM2.5 , the impact of PM2.5 pollution on atmospheric visibility, occupational health, and occupants' behaviors...
March 2, 2018: International Journal of Environmental Research and Public Health
Adel Asaad, Kimberley Cao, Mark Rumbak
Indoor air pollution appears to be a major environmental and public health hazard for large numbers of the underdeveloped world's population. A detailed environmental history is important for making diagnosis in most individuals from foreign rural settings with nonspecific respiratory symptoms. In this report, we describe an illustrative case of domestically acquired particulate lung disease (DAPLD) or "hut lung" in a 65-year-old Sudanese male who immigrated to the United States in 1986. He presented with symptoms of chronic productive cough and dyspnea...
2018: Respiratory Medicine Case Reports
Ashley A Lowe, Bruce Bender, Andrew H Liu, Teshia Solomon, Aaron Kobernick, Wayne Morgan, Lynn B Gerald
RATIONALE: Navajo children living on the reservation have high rates of asthma prevalence and severity. Environmental influences may contribute to asthma on the Navajo Nation and are inadequately understood. OBJECTIVES: We performed a comprehensive, integrative literature review to determine the environmental factors that may contribute to increased asthma prevalence and severity among Navajo children living on the reservation. METHODS: A systematic search was conducted in 4 databases regarding the environmental risk factors for asthma in Navajo children living on the reservation...
February 27, 2018: Annals of the American Thoracic Society
Pierina Ielpo, Maria Rosaria Taurino, Riccardo Buccolieri, Claudia Marcella Placentino, Francesco Gallone, Valeria Ancona, Silvana Di Sabatino
Indoor air pollution assessment in work environments remains challenging due to a combination of logistic reasons and availability of costly instrumentation for data acquisition and post-processing. Existing literature focuses on energy production environments, hospitals, and less so on food production spaces. Studies on indoor air quality in bakeries are scarce or even absent. Motivated by this, the present study investigates indoor air quality in a bakery located in Bari province in South Italy, using a combination of approaches including analytical chemistry analyses and computational fluid dynamics to reconstruct the air ventilation in response to air temperature gradients within the working environment...
February 27, 2018: Environmental Science and Pollution Research International
Xiaoxing Cui, Feng Li, Jianbang Xiang, Lin Fang, Ming Kei Chung, Drew B Day, Jinhan Mo, Charles J Weschler, Jicheng Gong, Linchen He, Dong Zhu, Chengjian Lu, Hailong Han, Yinping Zhang, Junfeng Jim Zhang
BACKGROUND: More than 90% of the world's population lives in areas where outdoor air pollution levels exceed health-based limits. In these areas, individuals may use indoor air filtration, often on a sporadic basis, in their residences to reduce exposure to respirable particles (PM2.5 ). Whether this intervention can lead to improvements in health outcomes has not been evaluated. METHODS: Seventy non-smoking healthy adults, aged 19 to 26 years, received both true and sham indoor air filtration in a double-blinded randomized crossover study...
February 20, 2018: Environment International
Mawutorli Nyarku, Mandana Mazaheri, Rohan Jayaratne, Matthew Dunbabin, Md Mahmudur Rahman, Erik Uhde, Lidia Morawska
Mobile phones have a large spectrum of applications, aiding in risk prevention and improving health and wellbeing of their owners. So far, however, they have not been used for direct assessment of personal exposure to air pollution. In this study, we comprehensively evaluated the first, and the only available, mobile phone-BROAD Life-equipped with air pollution sensors (PM2.5 and VOC), to answer the question whether this technology is a viable option in the quest of reducing the burden of disease to air pollution...
2018: PloS One
Jillian R Palumbo, Shao Lin, Ziqiang Lin, Iulia A Neamtiu, Wangjian Zhang, Eva Csobod, Eugen S Gurzau
School environment may have an impact on children's health, but few studies have focused on indoor comfort factors such as temperature, humidity, and noise in relation with potential effects on children's health. Our cross-sectional study used data from the European Schools Indoor Pollution and Health Observatory Network in Europe (SINPHONIE) project to assess children's allergy, asthma-like symptoms, and flu-like symptoms in relation with classroom comfort and environmental factors. The study used self-reported data from three questionnaires to identify classroom conditions and student health outcomes for 280 students...
February 22, 2018: Environmental Science and Pollution Research International
Alessia Demichelis, Céline Pascale, Maricarmen Lecuna, Bernhard Niederhauser, Guido Sassi, Maria Paola Sassi
Volatile organic compounds (VOCs) in gas mixtures at trace level (nmol/mol) are routinely measured by chemical and biochemical laboratories as climate indicators, indoor air quality pollutants from building materials emissions, contaminants in food and beverages, and biomarkers in body fluids (blood, urine, breath) of occupational exposure or human diseases. Current analytical instruments used for measurements are gas chromatographs equipped with various injector and detector configurations. The assurance of measurement quality is done by using a huge amount of certified liquid VOC standard solutions (or gaseous VOC standard cylinders) with multiple dilutions to reach the required trace level...
February 22, 2018: Analytical and Bioanalytical Chemistry
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