scholarly journals Ambient air pollutants and indoor air quality are associated with cognitive impairment in older adults: A six‐year cohort study

2021 ◽  
Vol 17 (S10) ◽  
Author(s):  
Shu‐Ping Tsao ◽  
Jen‐Hau Chen ◽  
Jia‐Kun Chen ◽  
Hwa‐Lung Yu ◽  
Jeng‐Min Chiou ◽  
...  
Keyword(s):  
Older Adults ◽  
Cohort Study ◽  
Cognitive Impairment ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Air Pollutants ◽  
Ambient Air ◽  
Ambient Air Pollutants

scholarly journals Childhood Exposure to Ambient Air Pollutants and the Onset of Asthma: An Administrative Cohort Study in Québec

2016 ◽  
Vol 124 (8) ◽  
pp. 1276-1282 ◽  
Author(s):  
Louis-Francois Tétreault ◽  
Marieve Doucet ◽  
Philippe Gamache ◽  
Michel Fournier ◽  
Allan Brand ◽  
...  
Keyword(s):  
Cohort Study ◽  
Air Pollutants ◽  
Ambient Air ◽  
Childhood Exposure ◽  
Ambient Air Pollutants

Perceived indoor air quality and its relationship to air pollutants in French dwellings

Indoor Air ◽  
2017 ◽  
Vol 27 (6) ◽  
pp. 1168-1176 ◽  
Author(s):  
S. Langer ◽  
O. Ramalho ◽  
E. Le Ponner ◽  
M. Derbez ◽  
S. Kirchner ◽  
...  
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Air Pollutants

Assessing Future Trends in Indoor Air Quality

1990 ◽  
Vol 6 (5) ◽  
pp. 103-115 ◽  
Author(s):  
H. J. Van De Wiel ◽  
E. Lebret ◽  
W. K. Van Der Lingen ◽  
H. C. Eerens ◽  
L.H. Vaas ◽  
...  
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Air Pollutants ◽  
Housing Stock ◽  
International Health ◽  
Health Organizations ◽  
Dutch Housing ◽  
International Health Organizations

Several national and international health organizations have derived concentration levels below which adverse effects on men are not expected or levels below which the excess risk for individuals is less than a specified value. For every priority pollutant indoor concentrations below this limit are considered “healthy.” The percentage of Dutch homes exceeding such a limit is taken as a measure of indoor air quality for that component. The present and future indoor air quality of the Dutch housing stock is described for fourteen air pollutants. The highest percentages are scored by radon, environmental tobacco smoke, nitrogen dioxide from unvented combustion, and the potential presence of housedust mite and mould allergen in damp houses. Although the trend for all priority pollutants is downward the most serious ones remain high in the coming decades if no additional measures will be instituted.

scholarly journals Indoor Air Quality in Steel Making Industries

2019 ◽  
Vol 8 (1) ◽  
pp. 147
Author(s):  
Kamel K. Al-Zboon ◽  
Osric Tening Forton
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Pollution Control ◽  
Indoor Air Pollution ◽  
Ambient Air ◽  
Key Factors ◽  
Steel Making ◽  
Global Environmental ◽  
Melting Slag

Steel making industry is one of the major contributors to the global environmental catastrophes including climate change, photochemical smog and depletion of the ozone layer. Emissions from steel making process result in health impacts on workers and the neighboring communities. This study aimed to investigate indoor air quality in a steel making industry in Saudi Arabia. Indicative pollutants, SO2, NOx, CO, CO2, O3, PM10 and PM2.5 were measured at eight locations across the factory. The obtained results indicated that loading, melting, slag pouring and casting stages are the major sources of indoor air pollution. In comparison with the ambient air, indoor concentrations increased up to: 13.50, 9.8, 1.29, 2.7, 15.6, times for SO2, NOx, CO2, VOCs, O3, respectively. Periodical medical check, pollution control, using of uncontaminated scrap, compliance with H&S regulations, are the key factors in reducing indoor emissions and subsequently improve occupational health. 

scholarly journals Planning and Design of Low-Power-Consuming Full-Outer-Air-Intake Natural Air-Conditioning System

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Chien-Lun Weng ◽  
Lih-Jen Kau
Keyword(s):  
Air Quality ◽  
Low Power ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Air Conditioning ◽  
Ambient Air ◽  
Living Environment ◽  
Air Conditioning System ◽  
Solvent Vapor ◽  
Air Intake

A person stays indoors for about 85%∼90% time of his lifetime, and the need for a comfortable indoor environment is getting higher; thus, the air-conditioning dependency becomes intense too. Nowadays, residents focus on both the comfortable living environment and indoor air quality. A closed environment will become hazardous because of carbon dioxide released during respiration and toxic organic solvent vapor released from interior decoration. In order to improve the indoor air quality (IAQ), we must allow outer fresh air into the indoor space and release the dirty air out. But while taking in fresh air, the heat and factory/vehicle exhaust are also introduced. Indoor CO2, HCHO, and VOCs and outer dirty gas threaten human health badly. To solve this problem, we bring up an innovative low-power-consuming full-outer-air-intake natural air-conditioning system that completely separates intake and exhaust air, which is a solution for cross-contamination and makes mass/energy exchange by means of air and water. Design airflow exceeds 300∼500 CFM, steam evaporation mass rate reaches 3.13∼3.88 kg/hr, and heat exchange capacity becomes 1,855∼2,300 kcal/hr. The sensible heat effectiveness is 71%∼112%, and EER exceeds 14.05∼17.42 kcal/W·h. In addition, the system under design can be of positive or negative pressure status according to the user’s or work’s requirement. It creates a comfortable and healthy living environment by supplying clean and fresh outer ambient air with low power consumption.

scholarly journals Exposure to Ambient Air Pollution and Cognitive Impairment in Community-Dwelling Older Adults: The Korean Frailty and Aging Cohort Study

2019 ◽  
Vol 16 (19) ◽  
pp. 3767 ◽  
Author(s):  
Shin ◽  
Han ◽  
Choi
Keyword(s):  
Older Adults ◽  
Cognitive Impairment ◽  
Air Pollutants ◽  
Meteorological Data ◽  
Digit Span ◽  
Multiple Logistic Regression Analysis ◽  
Ambient Air ◽  
Community Dwelling ◽  
Ambient Air Pollution ◽  
Global Cognition

The aim of this study was to investigate the associations between ambient air pollutants and cognitive impairment in Korean older adults. The cognitive function of 2,896 participants aged 70 to 84 years was measured using the Korean version of the mini-mental state examination, the digit span test, the word list learning test, and the frontal assessment battery. After matching the average concentrations of particulate matter (PM) <10 μm in size (PM10) and <2.5 μm (PM2.5), NO2, CO, SO2, and O3 between 2013 and 2017, the association between air pollutants and cognitive scales was analyzed using a linear mixed regression and a multiple logistic regression analysis (after adjusting for age, sex, health related behaviors, socioeconomic status, comorbidity, and meteorological data). Exposure to PM2.5, PM10, NO2, SO2, and CO was associated with cognitive impairment above and beyond age or education level effects. Specifically, PM2.5 was negatively associated with most components of the cognitive scales (interquartile range for PM2.5: 2.0 μg/m3, odds ratio for poor global cognition: 2.28, 95% confidence interval: 1.60–3.26). These associations may be affected by sex, residence area, or alcohol intake. Conclusively, air pollutants, especially PM2.5, were associated with cognitive impairment, including global cognition, attention, memory, and executive function in Korean older adults aged ≥70 years.

Exposure to Ambient Air Pollutants and the Onset of Dementia: An Administrative Cohort Study in Québec

2018 ◽  
Vol 2018 (1) ◽  
Author(s):  
Audrey Smargiassi ◽  
Celine Plante ◽  
Philippe Gamache ◽  
Rick Burnett ◽  
Larisa Ines Yankoty ◽  
...  
Keyword(s):  
Cohort Study ◽  
Air Pollutants ◽  
Ambient Air ◽  
Ambient Air Pollutants

The importance of improving indoor air quality to help reduce asthma attacks

2020 ◽  
Vol 1 (1) ◽  
pp. 47-48
Keyword(s):  
Air Quality ◽  
Young People ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Air Pollutants ◽  
School Environments ◽  
Children And Young People ◽  
Home And School

Two recent reports have warned about the importance of good air quality and issued advice on improving it in the home and school environments. This is a key consideration for children and young people with asthma, for whom air pollutants may worsen symptoms and trigger asthma attacks.

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