scholarly journals INFLUENCE OF INDOOR POLLUTION AND PARAMETERS ON HUMAN HEALTH

2019 ◽  
Vol 7 ◽  
pp. 1015-1019 ◽  
Author(s):  
Rositsa Velichkova ◽  
Peter Stankov ◽  
Radositna A. Angelova ◽  
Iskra Simova ◽  
Detelin Markov
Keyword(s):  
Human Health ◽  
Indoor Air ◽  
Chemical Species ◽  
Ambient Air ◽  
Negative Consequences ◽  
Indoor Pollution ◽  
Physical Processes ◽  
Indoor Pollutants ◽  
Recreation Areas

Indoor air quality (IAQ) is an important issue, considering that modern people spend most of their time indoors in houses, workplaces, recreation areas. IAQ has a serious impact on human health, comfort, performance, and wellbeing. In order to minimize the negative consequences, considerable efforts are made to assure the high quality of the indoor air. In the present paper, indoor pollution is analysed in light of its effect on IAQ and human health. The indoor pollutants are due to the presence of higher concentrations of chemical species, physical processes or biologicals in the ambient air.  

scholarly journals The Role of Indoor Plants in air Purification and Human Health in the Context of COVID-19 Pandemic: A Proposal for a Novel Line of Inquiry

2021 ◽  
Vol 8 ◽  
Author(s):  
Rania El-Tanbouly ◽  
Ziad Hassan ◽  
Sarah El-Messeiry
Keyword(s):  
Human Health ◽  
Indoor Air ◽  
Transmission Rate ◽  
Mitigation Measures ◽  
Air Purification ◽  
Negative Consequences ◽  
Viral Spread ◽  
Indoor Plants ◽  
Indoor Air Purification

The last two decades have seen the discovery of novel retroviruses that have resulted in severe negative consequences for human health. In late 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged with a high transmission rate and severe effects on human health, with 5% infected persons requiring hospitalisation and 3.81 million deaths to date globally. Aerosol particles containing virions are considered the main source of SARS CoV-2 transmission in this pandemic, with increased infection rates in confined spaces. Consequently, public and private institutions had to institute mitigation measures including the use of facial masks and social distancing to limit the spread of the virus. Moreover, the role of air purification and bio-decontamination is understood as being essential to mitigate viral spread. Various techniques can be applied to bio-decontaminate the air such as the use of filtration and radiation; however, these methods are expensive and not feasible for home use. Another method of air purification is where indoor plants can purify the air by the removal of air pollutants and habituated airborne microbes. The use of indoor plants could prove to be a cost-efficient way of indoor air-purification that could be adapted for a variety of environments with no need for special requirements and can also add an aesthetic value that can have an indirect impact on human health. In this review, we discuss the emergence of the COVID-19 pandemic and the currently used air purification methods, and we propose the use of indoor plants as a new possible eco-friendly tool for indoor air purification and for reducing the spread of COVID-19 in confined places.

scholarly journals Protection of water resources of the Carpathian region from pollution and negative consequences and their impact on human health

2020 ◽  
pp. 149-156
Author(s):  
G. Gutsulyak ◽  
Yu. Gutsulyak
Keyword(s):  
Water Resources ◽  
Human Health ◽  
Raw Materials ◽  
Negative Consequences ◽  
Renewable Raw Materials ◽  
Economic Problems ◽  
Carpathian Region ◽  
Main Thing ◽  
The Impact

Theoretical and practical issues of water resources of the Carpathian region are considered. An analysis of available water resources, use, sources and scale of pollution, their protection against pollution and adverse effects and the impact of these factors on human health. The development of production and improper conduct of economic activity by the relevant people, during which it began to use more and more natural resources, led to imbalances in the natural environment, which, in turn, led to a violation of the economic situation. This exacerbates the attention to economic problems and, above all, to the reduction of non-renewable raw materials and energy resources, to environmental pollution and loss of clean water, catastrophic reduction of fresh water, fertile land, many species of plants and animals, to preserve the necessary quality of the environment. the main thing, in the end, to the impact of all negative environmental factors on human health.

scholarly journals Indoor Ecosystem Services: Impacts of Plants on Air Quality

2019 ◽  
Vol 68 (1-2) ◽  
pp. 12-16
Author(s):  
Martina Zorić ◽  
Mitar Simić ◽  
Saša Orlović ◽  
Emina Mladenović ◽  
Zdenka Babić
Keyword(s):  
Carbon Dioxide ◽  
Ecosystem Services ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Human Health ◽  
Indoor Air ◽  
Sudden Increase ◽  
Measuring Device ◽  
Purification System

Summary Ecosystem services have been the focus of recent research on ecology, biodiversity and human health. As most of this research has placed emphasis on natural ecosystems, there is a lack of data on the effect of indoor and urban ecosystems on both human health and the quality of human life. One of the most common health issues associated with urban and indoor spaces is the quality of air. Considering that humans spend most of their time indoors, accompanied by a lack of fresh air due to industry growth and environmental degradation, there is an obvious need for a non-invasive and non-obtrusive air purification system. This paper presents the results of the indoor air quality monitoring under non-controlled conditions, i.e. the changes in air quality induced by the common indoor ornamental plant Sansevieria trifasciata ‘Laurentii’. The following air quality parameters were observed: the relative humidity and temperature of air, as well as the concentrations of carbon-dioxide, methane and overall VOCs. Measurements were performed using the commercial CO2 data logger Extech SD800 and the in-house developed Arduino Uno-based measuring device with different sensors. The results obtained show the changes in the indoor air quality relative to the presence or absence of the selected plants. A sudden increase in the overall VOC (NH3, NOx, benzene and smoke), methane and carbon-dioxide concentrations was recorded after the plants were removed from the indoor space. The purpose of this research is to form a basis for designing a biological purification system as a low-cost and environment-friendly method for the monitoring and purification of indoor air.

scholarly journals DALY indicator as an assessment tool for indoor air quality impact on human health

2018 ◽  
Vol 49 ◽  
pp. 00133 ◽  
Author(s):  
Monika Wysocka
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Human Health ◽  
Indoor Air ◽  
Indoor Environment ◽  
World Health ◽  
Artificial Environment ◽  
Life Years ◽  
The Impact

The quality of indoor environment is an extremely important issue, because people spend large parts of the day inside buildings. The quality of the indoor environment is largely dependent on the quality of indoor air. The parameters of the air we breathe affect our health and comfort of room use. Currently, when energy efficiency is a priority, it is difficult to maintain comfort and conditions appropriate for human health. The artificial environment in a room and related inadequate air quality cause many diseases, such as asthma, lung diseases, cardiovascular diseases, as well as poor well-being and reduced productivity. The Disability Adjusted Life Years (DALY) indicator means “loss of life corrected by disability” and is widely used by the World Health Organization to measure a disease burden on the population and identify the causes of a disease. The aim of the article is to present the structure of the DALY indicator and its suitability to assess the impact of indoor air quality on human health. The most frequent diseases caused by low quality of internal air were analysed based on statistical data. In addition, the possibilities of ventilation solutions have been presented, leading to the improvement of air quality in indoor environment.

scholarly journals Bad Air Can Also Kill: Residential Indoor Air Quality and Pollutant Exposure Risk during the COVID-19 Crisis

2020 ◽  
Vol 17 (19) ◽  
pp. 7183 ◽  
Author(s):  
Samuel Domínguez-Amarillo ◽  
Jesica Fernández-Agüera ◽  
Sonia Cesteros-García ◽  
Roberto Alonso González-Lezcano
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Energy Savings ◽  
Indoor Pollutants ◽  
Indoor Pollutant ◽  
Domestic Environments ◽  
The City ◽  
Pm2.5 Concentration

During the first outbreak of the SARS-CoV-2 pandemic the population, focusing primarily on the risk of infection, was generally inattentive to the quality of indoor air. Spain, and the city of Madrid in particular, were among the world’s coronavirus hotspots. The country’s entire population was subject to a 24/7 lockdown for 45 days. This paper describes a comparative longitudinal survey of air quality in four types of housing in the city of Madrid before and during lockdown. The paper analysed indoor temperatures and variations in CO2, 2.5 μm particulate matter (PM2.5) and total volatile organic compound (TVOC) concentrations before and during lockdown. The mean daily outdoor PM2.5 concentration declined from 11.04 µg/m3 before to 7.10 µg/m3 during lockdown. Before lockdown the NO2 concentration values scored as ‘very good’ 46% of the time, compared to 90.9% during that period. Although the city’s outdoor air quality improved, during lockdown the population’s exposure to indoor pollutants was generally more acute and prolonged. Due primarily to concern over domestic energy savings, the lack of suitable ventilation and more intensive use of cleaning products and disinfectants during the covid-19 crisis, indoor pollutant levels were typically higher than compatible with healthy environments. Mean daily PM2.5 concentration rose by approximately 12% and mean TVOC concentration by 37% to 559%. The paper also puts forward a series of recommendations to improve indoor domestic environments in future pandemics and spells out urgent action to be taken around indoor air quality (IAQ) in the event of total or partial quarantining to protect residents from respiratory ailments and concomitantly enhanced susceptibility to SARS-CoV-2, as identified by international medical research.

Numerical Investigation of Indoor CO2 Concentration Distribution in an Apartment

2010 ◽  
Vol 20 (1) ◽  
pp. 91-100 ◽  
Author(s):  
Jiaqing Zhou ◽  
Chang Nyung Kim
Keyword(s):  
Fluid Dynamics ◽  
Flow Rate ◽  
Indoor Air ◽  
Concentration Distribution ◽  
Co2 Concentration ◽  
Ambient Air ◽  
Unsteady State ◽  
Field Temperature ◽  
Reduction Of Energy Consumption

In a residential kitchen, a number of pollutants are generated due to cooking and are released into the ambient air; these can significantly affect the indoor air quality of residential environment. The purpose of this study was to investigate the indoor environmental conditions via the velocity field, temperature field and CO2 concentration distribution during cooking in a kitchen in a typical Korean apartment. Numerical simulations were conducted using the computational fluid dynamics software FLUENT 6.3 for solving the continuity, momentum, energy and concentration equations in an unsteady state with the standard k—ε turbulence model. The parameters used for the simulations included: (1) the extraction flow rate of the range hood (0, 500, 750 and 1000 m3·h-1) and (2) the angle between the inlet airflow and the ceiling (90°, 45° and 22.5°). The findings illustrated that the temperature and CO2 concentration distribution could be greatly influenced by the extraction flow rate of the range hood. Also, by reducing the angle between the airflow and ceiling, the area-averaged temperature could be reduced in the breathing plane of the kitchen. The findings of this research could contribute to the reduction of energy consumption and the adverse effects caused by cooking.

scholarly journals Investigation of Indoor and Outdoor Air Quality at Elementary Schools in Hanoi, Vietnam

2020 ◽  
Vol 36 (1) ◽  
Author(s):  
Hoang Anh Le ◽  
Vu Thi Quynh Linh
Keyword(s):  
Elementary Schools ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Residential Areas ◽  
Indoor Pollution ◽  
Quality Issue ◽  
Indoor And Outdoor ◽  
Significant Factors

Indoor air quality is having insufficient attention despite its importance for human health, especially for schools because children is one of the most sensitive groups to air pollution. This study focuses on monitoring the air quality inside classrooms at some elementary schools (ELS) of Hanoi with representative parameters including PM2.5, PM10, CO2, NO2, and VOCs. Simultaneously, those parameters in school yards are also monitored to provide data for comparison and evidence of the sources of indoor pollution. The results indicated that the main air quality issue in schools is particulate matters, particularly PM2.5. It also showed that schools locating near traffic roads have concentrations of 2 - 3 times higher than standards. VOCs concentration levels are high indoor and in school yards located near markets and traffic roads. CO2 and NO2 indoor concentrations are below standards in all schools. The ELS-7 has most of indoor and in yards concentrations at the highest values. Two significant factors effecting air quality of schools are traffic and activities of residential areas around them. Keywords: Indoor air quality, School, Vietnam.

scholarly journals Chemistry of Indoor Pollutants and Their Impacts on Human Health

2020 ◽  
pp. 40-61
Author(s):  
V. Davamani ◽  
M. Deepasri ◽  
E. Parameswari ◽  
S. Arulmani ◽  
S. Paul Sebastian ◽  
...  
Keyword(s):  
Air Pollution ◽  
Human Health ◽  
Indoor Air ◽  
Indoor Air Pollution ◽  
Linseed Oil ◽  
Modern Human ◽  
Chronic Obstructive ◽  
Cow Dung ◽  
Negative Consequences ◽  
Liquefied Petroleum Gas

Indoor air pollution refers to the deterioration of indoor air quality by harmful chemicals and other products, which can be up to 10 times worse than the outdoor air pollution. Almost 90% of the modern human time is spent indoors. In India, out of 0.2 billion people using fuel for cooking; 49% use firewood; 8.9% cow dung cake; 1.5% coal, lignite, or charcoal; 2.9% kerosene; 28.6% liquefied petroleum gas (LPG); 0.1% electricity; 0.4% biogas; and 0.5% any other means. The negative consequences of indoor air pollution result in around 2 million premature deaths every year, with 44% are due to pneumonia, 54% from chronic obstructive pulmonary disease (COPD), and 2% from lung cancer. The so-called "natural" or "ecologic" goods are not inherently free of adverse health effects. Certain other constituents such as terpenoids and linseed oil may be chemically reactive than those from non-ecologic products. Secondary emissions from these products may present a greater risk to human health than those compounds which are substitutes for their precursors.

scholarly journals The Threat of Ambient Air Pollution in Kathmandu, Nepal

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Bhuvan Saud ◽  
Govinda Paudel
Keyword(s):  
Air Pollution ◽  
Human Health ◽  
Negative Impact ◽  
Ambient Air ◽  
Noncommunicable Disease ◽  
Ambient Air Pollution ◽  
Infrastructure Development ◽  
Rapid Urbanization ◽  
Current Scenario

Air pollution has been a major problem of 21st century for both developed and developing world. It has a negative impact on various environmental aspects which directly or indirectly affect the quality of human health. Nepal, especially Kathmandu, in the current situation, is observing rapid urbanization and various infrastructure development projects. As a result, these sorts of human activities have been responsible for increasing air pollution in an enormous rate inside Kathmandu Valley. Chronic exposure of deteriorated air increases the chance of Noncommunicable Disease (NCD) like lung disease, heart disease, and cancers. Short term exposures also invite respiratory diseases and allergy. This review is an attempt to summarize the updated knowledge on the threat of air pollution on public health and discuss the sources of air pollutants in Kathmandu. We reviewed the literatures that were published in PMC, MEDLINE, life science journals, and organization official websites and finally came up with the findings and their interpretation that reveal the current scenario in the context of Kathmandu’s air quality status and its impact on human health. The knowledge about the invisible killer’s role in causing acute and chronic diseases may help in finding out the answer of the question regarding its effect and prevention.

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