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https://www.readbyqxmd.com/read/29332278/exposure-to-nanoscale-and-microscale-particulate-air-pollution-prior-to-mining-development-near-a-northern-indigenous-community-in-qu%C3%A3-bec-canada
#1
Avik J Ghoshdastidar, Zhenzhong Hu, Yevgen Nazarenko, Parisa A Ariya
This study serves as a baseline characterization of indoor and outdoor air quality in a remote northern indigenous community prior to the start of a major nearby mining operation, including measurements of nanoparticles, which has never been performed in this context before. We performed aerosol sample collection and real-time aerosol measurements at six different locations at the Cree First Nation of Waswanipi and the Montviel campsite, located 45 km west of the Cree First Nation of Waswanipi, in the south of the Nord-du-Québec region...
January 14, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29329571/environmental-exposures-and-fetal-growth-the-haifa-pregnancy-cohort-study
#2
Rachel Golan, Itai Kloog, Ronit Almog, Anat Gesser-Edelsburg, Maya Negev, Maya Jolles, Varda Shalev, Vered H Eisenberg, Gideon Koren, Wiessam Abu Ahmad, Hagai Levine
BACKGROUND: The developing fetus is susceptible to environmental insults. Studying the effects of environmental exposures on fetal growth is essential for understanding the causal pathway between prenatal exposures and pregnancy outcomes. Here we describe the Haifa Pregnancy Cohort Study (HPCS) and discuss challenges and opportunities in applying "big data" paradigm. METHODS: Maccabi Healthcare Services (MHS), is the second largest Israeli health maintenance organization (HMO) providing care services to two million beneficiaries...
January 12, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29306794/the-short-term-effects-of-indoor-size-fractioned-particulate-matter-and-black-carbon-on-cardiac-autonomic-function-in-copd-patients
#3
Lu Pan, Shaowei Wu, Hongyu Li, Junhui Xu, Wei Dong, Jiao Shan, Xuan Yang, Yahong Chen, Masayuki Shima, Furong Deng, Xinbiao Guo
BACKGROUND: Previous studies have reported adverse health effects of indoor air pollutants especially particulate matter (PM) and black carbon (BC). Patients with chronic obstructive pulmonary disease (COPD) have been shown to be more likely with cardiovascular comorbidities in which cardiac autonomic dysfunction plays an important role. However, there is little evidence for the effect of indoor PM and BC exposures on cardiac autonomic function in COPD patients. OBJECTIVES: To evaluate the association between exposure to indoor size-fractioned PM and BC and changes in HRV and HR in COPD patients...
January 3, 2018: Environment International
https://www.readbyqxmd.com/read/29304498/low-cost-measurement-techniques-to-characterize-the-influence-of-home-heating-fuel-on-carbon-monoxide-in-navajo-homes
#4
Joanna Gordon Casey, John Ortega, Evan Coffey, Michael Hannigan
A large fraction of the global population relies on the inefficient combustion of solid fuels for cooking and home heating, resulting in household exposure to combustion byproducts. In the southwestern United States, unhealthy air quality has been observed in some homes that use solid fuels as a primary source of heat on the Navajo Nation. In order to better understand how home heating fuel choice can influence indoor air quality in this region, we used recently developed low-cost electrochemical sensors to measure carbon monoxide (CO) air mole fractions continuously inside and outside 41 homes in two communities on the Navajo Nation...
January 2, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29289289/airborne-pcdd-fs-in-two-e-waste-recycling-regions-after-stricter-environmental-regulations
#5
Manwen Zhang, Guixian Feng, Wenhua Yin, Bing Xie, Mingzhong Ren, Zhencheng Xu, Sukun Zhang, Zongwei Cai
Since the 2010s, the authorities of Guangdong province and local governments have enhanced law enforcement and environmental regulations to abolish open burning, acid washing, and other uncontrolled e-waste recycling activities. In this study, ambient air and indoor dust near different kinds of e-waste recycling processes were collected in Guiyu and Qingyuan to investigate the pollution status of particles and polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) after stricter environmental regulations. PM2...
December 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29288255/assessment-of-indoor-air-quality-at-an-electronic-cigarette-vaping-convention
#6
Rui Chen, Angela Aherrera, Chineye Isichei, Pablo Olmedo, Stephanie Jarmul, Joanna E Cohen, Ana Navas-Acien, Ana M Rule
E-cigarette (vaping) conventions are public events promoting electronic cigarettes, in which indoor use of e-cigarettes is allowed. The large concentration of people using e-cigarettes and poor air ventilation can result in indoor air pollution. In order to estimate this worst-case exposure to e-cigarettes, we evaluated indoor air quality in a vaping convention in Maryland (MD), USA. Real-time concentrations of particulate matter (PM10) and real-time total volatile organic compounds (TVOCs), CO2 and NO2 concentrations were measured...
December 29, 2017: Journal of Exposure Science & Environmental Epidemiology
https://www.readbyqxmd.com/read/29228711/at-seeming-safe-concentrations-synergistic-effects-of-pm2-5-and-formaldehyde-co-exposure-induces-alzheimer-like-changes-in-mouse-brain
#7
Xudong Liu, Yuchao Zhang, Chen Luo, Jun Kang, Jinquan Li, Kun Wang, Ping Ma, Xu Yang
Alzheimer's disease (AD) is a serious, common, global disease, yet its etiology and pathogenesis are incompletely understood. Air pollution is a multi-pollutants co-exposure system, which may affect brain. The indoor environment is where exposure to both air particulate matter (<2.5 μm in diameter) (PM2.5) and formaldehyde (FA) can occur simultaneously. Whether exposure to such a multi-pollutant (PM2.5 plus FA) mixture contributes to the development of AD, and whether there is a difference between exposure to PM2...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220786/magnetic-susceptibility-of-spider-webs-as-a-proxy-of-airborne-metal-pollution
#8
Marzena Rachwał, Justyna Rybak, Wioletta Rogula-Kozłowska
The purpose of this pilot study was to test spider webs as a fast tool for magnetic biomonitoring of air pollution. The study involved the investigation of webs made by four types of spiders: Pholcus phalangioides (Pholcidae), Eratigena atrica and Agelena labirynthica (Agelenidae) and Linyphia triangularis (Linyphiidae). These webs were obtained from outdoor and indoor study sites. Compared to the clean reference webs, an increase was observed in the values of magnetic susceptibility in the webs sampled from both indoor and outdoor sites, which indicates contamination by anthropogenically produced pollution particles that contain ferrimagnetic iron minerals...
December 5, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29212055/indoor-and-outdoor-air-concentrations-of-volatile-organic-compounds-and-no2-in-schools-of-urban-industrial-and-rural-areas-in-central-southern-spain
#9
Florentina Villanueva, Araceli Tapia, Sonia Lara, Mariano Amo-Salas
Thirty two VOCs including alkanes, aromatic hydrocarbons, terpenes and carbonyl compounds together with NO2 were investigated in a kindergarten classroom, a primary classroom and the playground in 18 schools located in rural areas, an urban area (Ciudad Real) and an industrial area (Puertollano) in the province of Ciudad Real in central southern Spain. The most abundant pollutants at schools were the aldehydes formaldehyde and hexanal. After carbonyls, n-dodecane was the most abundant compound in the study areas...
December 3, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29209590/risk-factors-for-community-acquired-pneumonia-among-adults-in-kenya-a-case-control-study
#10
Esther Muthumbi, Brett S Lowe, Cyprian Muyodi, Esther Getambu, Fergus Gleeson, J Anthony G Scott
Background: Pneumonia is a leading cause of morbidity and mortality among adults worldwide; however, the risk factors for community-acquired pneumonia in Africa are not well characterized. Methods: The authors recruited 281 cases of community-acquired pneumonia and 1202 hospital controls among patients aged ≥15 years who attended Kilifi District Hospital/Coast Provincial General Hospital in Kenya between 1994 and 6. Cases were admissions with an acute illness with ≥2 respiratory signs and evidence of consolidation on a chest radiograph...
2017: Pneumonia
https://www.readbyqxmd.com/read/29206447/a-collection-method-for-isotopic-analysis-of-gaseous-nitrous-acid-hono
#11
Jiajue Chai, Meredith G Hastings
The sources and chemistry of gaseous nitrous acid (HONO) in the environment are of great interest. HONO is a major source of atmospheric hydroxyl radical (OH), which greatly impacts air quality and climate. HONO is also a major indoor pollutant that threatens human health. However, the large uncertainty of HONO sources and chemistry hinders an accurate prediction of the OH budget. Isotopic analysis of HONO may provide a tool for tracking the sources and chemistry of HONO. In this study, a modified annular denuder system (ADS) was developed to quantitatively capture HONO for offline nitrogen and oxygen isotopic analysis (δ15N and δ18O) using the denitrifier method...
December 5, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29199684/the-increasing-challenge-of-never-smokers-with-adenocarcinoma-lung-need-to-look-beyond-tobacco-exposure
#12
A Das, A Krishnamurthy, V Ramshankar, T G Sagar, R Swaminathan
BACKGROUND: Lung cancer continues to remain as one of the leading causes of morbidity and mortality worldwide, despite the decreasing trends in smoking prevalence worldwide. An earlier study from the authors' institute reported the increasing trends of "Nonsmoking associated lung cancers." MATERIALS AND METHODS: All consecutive histologically confirmed patients with lung cancer who presented to the outpatient department over a year (November 2014-October 2015) were included in this current prospective study...
January 2017: Indian Journal of Cancer
https://www.readbyqxmd.com/read/29195183/impacts-of-exposure-to-black-carbon-elemental-carbon-and-ultrafine-particles-from-indoor-and-outdoor-sources-on-blood-pressure-in-adults-a-review-of-epidemiological-evidence
#13
REVIEW
Sandra Magalhaes, Jill Baumgartner, Scott Weichenthal
INTRODUCTION: Ambient particulate air pollution is known to have detrimental effects on cardiovascular health but less is known about the specific effects of black carbon or elemental carbon (BC/EC) and ultrafine particles (UFP). METHODS: We present a narrative review of the epidemiological evidence related to the impact of exposure to BC/EC and UFP on blood pressure in adults. We searched PubMed and EMBASE in September 2017, using a predefined search strategy. Abstracts were screened using predefined inclusion criteria...
November 28, 2017: Environmental Research
https://www.readbyqxmd.com/read/29192399/indoor-air-quality-of-everyday-use-spaces-dedicated-to-specific-purposes-a-review
#14
Mariusz Marć, Monika Śmiełowska, Jacek Namieśnik, Bożena Zabiegała
According to literature data, some of the main factors which significantly affect the quality of the indoor environment in residential households or apartments are human activities such as cooking, smoking, cleaning, and indoor exercising. The paper presents a literature overview related to air quality in everyday use spaces dedicated to specific purposes which are integral parts of residential buildings, such as kitchens, basements, and individual garages. Some aspects of air quality in large-scale car parks, as a specific type of indoor environment, are also discussed...
November 30, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29188991/self-powered-electrostatic-filter-with-enhanced-photocatalytic-degradation-of-formaldehyde-based-on-built-in-triboelectric-nanogenerators
#15
Yawei Feng, Lili Ling, Jinhui Nie, Kai Han, Xiangyu Chen, Zhenfeng Bian, Hexing Li, Zhong Lin Wang
Recently, atmospheric pollution caused by particulate matter or volatile organic compounds (VOCs) has become a serious issue to threaten human health. Consequently, it is highly desirable to develop an efficient purifying technique with simple structure and low cost. In this study, by combining a triboelectric nanogenerator (TENG) and a photocatalysis technique, we demonstrated a concept of a self-powered filtering method for removing pollutants from indoor atmosphere. The photocatalyst P25 or Pt/P25 was embedded on the surface of polymer-coated stainless steel wires, and such steel wires were woven into a filtering network...
November 30, 2017: ACS Nano
https://www.readbyqxmd.com/read/29185219/study-on-the-pollution-status-and-control-measures-for-the-livestock-and-poultry-breeding-industry-in-northeastern-china
#16
Hanxi Wang, Jianling Xu, Xuejun Liu, Lianxi Sheng, Di Zhang, Longwei Li, Aixia Wang
Livestock and poultry breeding industry is one of the main economic pillars of northeastern China. However, the amount of pollutants produced is much higher than that in other parts of China. Through a questionnaire survey, indoor experiment, and outdoor experiment, it was found that the resource utilization rate of livestock and poultry manure in the northeastern region is low, with the pollution of livestock and poultry breeding mainly including air and water pollution. The alarm level of cultivated land and manure is II...
November 28, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29178978/the-association-between-exposure-to-air-pollutants-including-pm10-pm2-5-ozone-carbon-monoxide-sulfur-dioxide-and-nitrogen-dioxide-concentration-and-the-relative-risk-of-developing-stemi-a-case-crossover-design
#17
Mohammad Ali Akbarzadeh, Isa Khaheshi, Amirsina Sharifi, Negin Yousefi, Mohammadreza Naderian, Mohammad Hasan Namazi, Morteza Safi, Hossein Vakili, Habibollah Saadat, Saeed Alipour Parsa, Negin Nickdoost
BACKGROUND: Unfavorable associations between air pollution and myocardial infarction are broadly investigated in recent studies and some of them revealed considerable associations; however, controversies exists between these investigations with regard to culprit components of air pollution and significance of correlation between myocardial infarction risk and air pollution. METHODS: The association between exposure to PM10, PM2.5, ozone, carbon monoxide, sulfur dioxide, and nitrogen dioxide concentration of background air that residents of Tehran, the capital city of Iran, which is ranked as the most air polluted city of Iran and the relative risk of developing ST-elevation myocardial infarction (STEMI) were investigated by a case-crossover design...
November 24, 2017: Environmental Research
https://www.readbyqxmd.com/read/29177967/perspective-for-future-research-direction-about-health-impact-of-ambient-air-pollution-in-china
#18
Guang-Hui Dong
Air pollution has become one of the major risks to human health because of the progressive increase in the use of vehicles powered by fossil fuels. Although lots of works on the health impact of ambient air pollution have been done in China, the following recommendations for future research were identified in this chapter: (1) the synergistic effect of indoor air pollution with climate change; (2) develop new technologies to improve accurate assessment of air pollution exposure; (3) well-designed cohort study of sensitive populations including children, older people, and people with chronic health problems; (4) multi-omics technologies in the underlying mechanisms study; and (5) benefits evaluation of improvement of air quality...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29177958/human-exposure-assessment-for-air-pollution
#19
Bin Han, Li-Wen Hu, Zhipeng Bai
Assessment of human exposure to air pollution is a fundamental part of the more general process of health risk assessment. The measurement methods for exposure assessment now include personal exposure monitoring, indoor-outdoor sampling, mobile monitoring, and exposure assessment modeling (such as proximity models, interpolation model, air dispersion models, and land-use regression (LUR) models). Among these methods, personal exposure measurement is considered to be the most accurate method of pollutant exposure assessment until now, since it can better quantify observed differences and better reflect exposure among smaller groups of people at ground level...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29175623/evidence-from-sinphonie-project-impact-of-home-environmental-exposures-on-respiratory-health-among-school-age-children-in-romania
#20
Yi Lu, Shao Lin, Wayne R Lawrence, Ziqiang Lin, Eugen Gurzau, Eva Csobod, Iulia A Neamtiu
BACKGROUND: Exposure to indoor air pollutants at home was found to be associated with respiratory diseases. As lifestyle changes with rapid economic growth in Romania, the aim of our study is to describe the characteristics of Romanian homes and their impact on children's respiratory health. METHODS: Self-reported information on respiratory symptoms was collected from 280 Romanian elementary school students in 2011, and the symptoms were categorized into allergy, asthma-like, and flu-like symptoms...
November 22, 2017: Science of the Total Environment
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