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https://www.readbyqxmd.com/read/29737193/technology-review-prototyping-platforms-for-monitoring-ambient-conditions
#1
Samuel Olaiya Afolaranmi, Borja Ramis Ferrer, Jose Luis Martinez Lastra
The monitoring of ambient conditions in indoor spaces is very essential owing to the amount of time spent indoors. Specifically, the monitoring of air quality is significant because contaminated air affects the health, comfort and productivity of occupants. This research work presents a technology review of prototyping platforms for monitoring ambient conditions in indoor spaces. It involves the research on sensors (for CO2 , air quality and ambient conditions), IoT platforms, and novel and commercial prototyping platforms...
May 8, 2018: International Journal of Environmental Health Research
https://www.readbyqxmd.com/read/29690534/a-system-based-on-the-internet-of-things-for-real-time-particle-monitoring-in-buildings
#2
Gonçalo Marques, Cristina Roque Ferreira, Rui Pitarma
Occupational health can be strongly influenced by the indoor environment as people spend 90% of their time indoors. Although indoor air quality (IAQ) is not typically monitored, IAQ parameters could be in many instances very different from those defined as healthy values. Particulate matter (PM), a complex mixture of solid and liquid particles of organic and inorganic substances suspended in the air, is considered the pollutant that affects more people. The most health-damaging particles are the ≤PM10 (diameter of 10 microns or less), which can penetrate and lodge deep inside the lungs, contributing to the risk of developing cardiovascular and respiratory diseases, as well as of lung cancer...
April 21, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29683219/response-of-consumer-and-research-grade-indoor-air-quality-monitors-to-residential-sources-of-fine-particles
#3
Brett C Singer, William W Delp
The ability to inexpensively monitor PM2.5 to identify sources and enable controls would advance residential indoor air quality (IAQ) management. Consumer IAQ monitors incorporating low-cost optical particle sensors and connections with smart home platforms could provide this service if they reliably detect PM2.5 in homes. In this study, particles from typical residential sources were generated in a 120 m3 laboratory and time-concentration profiles were measured with seven consumer monitors (2-3 units each), two research monitors (Thermo pDR-1500, MetOne BT-645), a Grimm Mini Wide-Range Aerosol Spectrometer (GRM), and a Tapered Element Oscillating Microbalance with Filter Dynamic Measurement System (FDMS), a federal equivalent method (FEM) for PM2...
April 23, 2018: Indoor Air
https://www.readbyqxmd.com/read/29679276/health-risk-assessment-of-voc-emissions-in-laboratory-rooms-via-a-modeling-approach
#4
Farzad Davardoost, Davood Kahforoushan
One of the important agents menacing buildings' employees and residents' health is the emission of volatile organic compounds (VOCs) into the indoor environment. The present research studied the VOC emission to evaluate indoor air quality (IAQ) through studying in-laboratory processes and tasks. On account of that, three different pollutants (acetone, benzene, and toluene) were chosen as candidate VOCs, and Environmental Engineering Research Center at Sahand University of Technology was selected as a sample laboratory for each VOC...
April 21, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29649167/assessment-of-indoor-air-quality-problems-in-office-like-environments-role-of-occupational-health-services
#5
REVIEW
Paolo Carrer, Peder Wolkoff
There is an increasing concern about indoor air quality (IAQ) and its impact on health, comfort, and work-performance in office-like environments and their workers, which account for most of the labor force. The Scientific Committee on Indoor Air Quality and Health of the ICOH (Int. Comm. Occup. Health) has discussed the assessment and management of IAQ problems and proposed a stepwise approach to be conducted by a multidisciplinary team. It is recommended to integrate the building assessment, inspection by walk-through of the office workplace, questionnaire survey, and environmental measurements, in that order...
April 12, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29617335/association-between-four-level-categorisation-of-indoor-exposure-and-perceived-indoor-air-quality
#6
Katja Tähtinen, Sanna Lappalainen, Kirsi Karvala, Jouko Remes, Heidi Salonen
The aim of this study was to develop and test a tool for assessing urgency of indoor air quality (IAQ) measures. The condition of the 27 buildings were investigated and results were categorized. Statistical test studied the differences between the categories and the employees’ complaints about their work environment. To study the employees’ experiences of the work premises, a validated indoor air (IA) questionnaire was used. This study reveals a multifaceted problem: many factors affecting IAQ may also affect perceived IAQ, making it difficult to separate the impurity sources and ventilation system deficiencies affecting to employee experiences...
April 4, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29584686/in-cabin-air-quality-during-driving-and-engine-idling-in-air-conditioned-private-vehicles-in-hong-kong
#7
Natasha Maria Barnes, Tsz Wai Ng, Kwok Keung Ma, Ka Man Lai
Many people spend lengthy periods each day in enclosed vehicles in Hong Kong. However, comparably limited data is available about in-cabin air quality in air-conditioned private vehicles, and the car usage that may affect the air quality. Fifty-one vehicles were tested for particulate matter (PM0.3 and PM2.5 ), total volatile organic compounds (TVOCs), carbon monoxide (CO), carbon dioxide (CO₂), airborne bacteria, and fungi levels during their routine travel journey. Ten of these vehicles were further examined for PM0...
March 27, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29516698/-influence-of-moxa-smoke-on-indoor-air-quality-and-strategies-for-its-control
#8
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
https://www.readbyqxmd.com/read/29434055/assessing-metabolic-rate-and-indoor-air-quality-with-passive-environmental-sensors
#9
Iván Ruiz, Mark Sprowls, Yue Deng, Doina Kulick, Hugo Destaillats, Erica S Forzani
The present work introduces the use of environmental sensors to assess indoor air quality (IAQ) in combination with human biometrics. The sensor array included temperature, relative humidity, carbon dioxide, and noise monitors. The array was used in a classroom as well as in a vehicle cabin to assess the carbon dioxide production rate of individuals in a closed ventilation environment. Analysis of carbon dioxide production allowed for the quantification of the average metabolic rate of the group of individuals in the classroom, and for one individual in the vehicle cabin...
April 4, 2018: Journal of Breath Research
https://www.readbyqxmd.com/read/29398406/indoor-air-humidity-air-quality-and-health-an-overview
#10
REVIEW
Peder Wolkoff
There is a long-standing dispute about indoor air humidity and perceived indoor air quality (IAQ) and associated health effects. Complaints about sensory irritation in eyes and upper airways are generally among top-two symptoms together with the perception "dry air" in office environments. This calls for an integrated analysis of indoor air humidity and eye and airway health effects. This overview has reviewed the literature about the effects of extended exposure to low humidity on perceived IAQ, sensory irritation symptoms in eyes and airways, work performance, sleep quality, virus survival, and voice disruption...
April 2018: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/29393004/impact-of-home-remediation-and-household-education-on-indoor-air-quality-respiratory-visits-and-symptoms-in-alaska-native-children
#11
Rosalyn Singleton, Aaron J Salkoski, Lisa Bulkow, Chris Fish, Jennifer Dobson, Leif Albertson, Jennifer Skarada, Troy Ritter, Thomas Kovesi, Thomas W Hennessy
Alaska Native children experience high rates of lower respiratory tract infections (LRTIs) and lung conditions, which are associated with substandard indoor air quality (IAQ). We conducted an intervention of home remediation and education to assess the impact on IAQ, respiratory symptoms and LRTI visits. We enrolled households of children 1-12 years of age with lung conditions. Home remediation included improving ventilation and replacing leaky woodstoves. We provided education about IAQ and respiratory health...
December 2018: International Journal of Circumpolar Health
https://www.readbyqxmd.com/read/29385772/ventilation-positive-pressure-intervention-effect-on-indoor-air-quality-in-a-school-building-with-moisture-problems
#12
Camilla Vornanen-Winqvist, Kati Järvi, Sander Toomla, Kaiser Ahmed, Maria A Andersson, Raimo Mikkola, Tamás Marik, László Kredics, Heidi Salonen, Jarek Kurnitski
This case study investigates the effects of ventilation intervention on measured and perceived indoor air quality (IAQ) in a repaired school where occupants reported IAQ problems. Occupants' symptoms were suspected to be related to the impurities leaked indoors through the building envelope. The study's aim was to determine whether a positive pressure of 5-7 Pa prevents the infiltration of harmful chemical and microbiological agents from structures, thus decreasing symptoms and discomfort. Ventilation intervention was conducted in a building section comprising 12 classrooms and was completed with IAQ measurements and occupants' questionnaires...
January 30, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29360389/the-real-and-subjective-indoor-environmental-quality-in-schools
#13
Ľudmila Mečiarová, Silvia Vilčeková, Eva Krídlová Burdová, Peter Kapalo, Nikola Mihaľová
Investigation of IEQ and subjective evaluation of IEQ by pupils is the main objective of this research work. For the monitoring two classrooms in primary school and two classrooms in art school were chosen. Very high CO2 levels were determined in both investigated schools. In three of four classrooms the statistically significant differences (p < 0.01) were reported between TVOC levels in autumn and spring. The recommended value for TVOC levels was exceeded in the range from 52 % to 53 % in autumn and from 52 % to 70 % in spring...
February 2018: International Journal of Environmental Health Research
https://www.readbyqxmd.com/read/29341859/an-indoor-air-quality-evaluation-in-a-residential-retrofit-project-using-spray-polyurethane-foam
#14
Shen Tian, Scott Ecoff, John Sebroski, Jason Miller, Harold Rickenbacker, Melissa Bilec
Understanding of indoor air quality (IAQ) during and after spray polyurethane foam (SPF) application is essential to protect the health of both workers and building occupants. Previous efforts such as field monitoring, micro-chamber/spray booth emission studies and fate/transport modeling have been conducted to understand the chemical exposure of SPF and guide risk mitigation strategies. However, each type of research has its limitation and can only reveal partial information on the relationship between SPF and IAQ...
January 17, 2018: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/29280511/modeling-the-resiliency-of-energy-efficient-retrofits-in-low-income-multifamily-housing
#15
L J Underhill, M P Fabian, K Vermeer, M Sandel, G Adamkiewicz, J H Leibler, J I Levy
Residential energy efficiency and ventilation retrofits (eg, building weatherization, local exhaust ventilation, HVAC filtration) can influence indoor air quality (IAQ) and occupant health, but these measures' impact varies by occupant activity. In this study, we used the multizone airflow and IAQ analysis program CONTAM to simulate the impacts of energy retrofits on indoor concentrations of PM2.5 and NO2 in a low-income multifamily housing complex in Boston, Massachusetts (USA). We evaluated the differential impact of residential activities, such as low- and high-emission cooking, cigarette smoking, and window opening, on IAQ across two seasons...
December 27, 2017: Indoor Air
https://www.readbyqxmd.com/read/29277437/indoor-air-quality-iaq-evaluation-of-a-novel-tobacco-vapor-ntv-product
#16
Hirokazu Ichitsubo, Misato Kotaki
The impact of using a Novel Tobacco Vapor (NTV) product on indoor air quality (IAQ) was simulated using an environmentally-controlled chamber. Three environmental simulations were examined; two non-smoking areas (conference room and dining room) and one ventilated smoking area (smoking lounge). IAQ was evaluated by (i) measuring constituents in the mainstream NTV product emissions, (ii) and by determining classical environmental tobacco smoke (ETS) and representative air quality markers. Analysis of the mainstream emissions revealed that vapor from the NTV product is chemically simpler than cigarette smoke...
February 2018: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29123371/monitoring-biodiversity-in-libraries-a-pilot-study-and-perspectives-for-indoor-air-quality
#17
REVIEW
F Valeriani, C Cianfanelli, G Gianfranceschi, S Santucci, V Romano Spica, N Mucci
Indoor Air Quality (IAQ) in libraries is influenced by the presence of specific factors which can impact on both paper storage as well as people health. Microclimatic conditions induce and support a biodiversity pattern involving environmental and anthropic microorganisms. We used a multidisciplinary monitoring model to characterize microflora biodiversity by Next Generation Sequencing (NGS). Biodiversity indexes were adapted to evaluate anthropic vs environmental pollution by combining Shannon mean index (H), species representativeness (EH ), human/environmental pollution ratio (SA) to better characterize the NGS output and acquire synthetic information on Indoor Air Microbial Biodiversity (IAMB)...
September 2017: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/29070452/physicochemical-risk-factors-for-building-related-symptoms-in-air-conditioned-office-buildings-ambient-particles-and-combined-exposure-to-indoor-air-pollutants
#18
Kenichi Azuma, Koichi Ikeda, Naoki Kagi, U Yanagi, Haruki Osawa
We conducted a cross-sectional epidemiological study to examine the correlation between indoor air quality (IAQ) and building-related symptoms (BRSs) of office workers in air-conditioned office buildings. We investigated 11 offices during winter and 13 offices during summer in 17 buildings with air-conditioning systems in Tokyo, Osaka, and Fukuoka, and we included 107 office workers during winter and 207 office workers during summer. We conducted environmental sampling for evaluating IAQ and concurrently administered self-reported questionnaires to collect information regarding work-related symptoms...
March 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29068361/indoor-air-quality-and-health
#19
EDITORIAL
Alessandra Cincinelli, Tania Martellini
In the last few decades, Indoor Air Quality (IAQ) has received increasing attention from the international scientific community, political institutions, and environmental governances for improving the comfort, health, and wellbeing of building occupants.[...].
October 25, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29062397/key-factors-determining-indoor-air-pm-10-concentrations-in-naturally-ventilated-primary-schools-in-belgrade-serbia
#20
Branislava Matic, Uros Rakic, Verica Jovanovic, Snezana Dejanovic, Nela Djonovic
INTRODUCTION: Indoor air quality (IAQ) is rated as a serious public health issue. Knowing children are accounted as more vulnerable to environmental health hazards, data are needed on air quality in schools. METHODS: A project was conducted from 2007 until 2009 (SEARCH, School Environment and Respiratory Health of Children), aiming to verify links between IAQ and children's respiratory health. Study was conducted in ten primary schools on 735 children, in 44 classrooms...
October 2017: Zdravstveno Varstvo
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