scholarly journals Phytoremediation: The Sustainable Strategy for Improving Indoor and Outdoor Air Quality

Environments ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 118
Author(s):  
Heayyean Lee ◽  
Ziwoo Jun ◽  
Zahra Zahra
Keyword(s):  
Air Pollutants ◽  
Cost Effective ◽  
Growth Conditions ◽  
Health Issues ◽  
Outdoor Air ◽  
Biological Mechanisms ◽  
Plant Selection ◽  
Non Invasive ◽  
Invasive Method ◽  
Indoor And Outdoor

Most of the world’s population is exposed to highly polluted air conditions exceeding the WHO limits, causing various human diseases that lead towards increased morbidity as well as mortality. Expenditures on air purification and costs spent on the related health issues are rapidly increasing. To overcome this burden, plants are potential candidates to remove pollutants through diverse biological mechanisms involving accumulation, immobilization, volatilization, and degradation. This eco-friendly, cost-effective, and non-invasive method is considered as a complementary or alternative tool compared to engineering-based remediation techniques. Various plant species remove indoor and outdoor air pollutants, depending on their morphology, growth condition, and microbial communities. Hence, appropriate plant selection with optimized growth conditions can enhance the remediation capacity significantly. Furthermore, suitable supplementary treatments, or finding the best combination junction with other methods, can optimize the phytoremediation process.

scholarly journals Non Invasive Treatment to Relieve the Pain due to Headaches & Sinus using Vibration on Acupressure Points

2019 ◽  
Vol 9 (1S4) ◽  
pp. 585-588
Keyword(s):  
Stress Condition ◽  
Cost Effective ◽  
Climatic Changes ◽  
Invasive Treatment ◽  
Non Invasive ◽  
Common Term ◽  
Different Types ◽  
Invasive Method ◽  
Frequency Changes ◽  
Head Neck

Headache is a common term that causes pain in the region of head, neck, and scalp. It is a neurological disorder. The nerves are tending to be in under stress condition. The main causes of the headache are due to stress, depression, tension, anxiety and due to some climatic changes, etc. Headache is classified into different types. Migraine, cluster headache, sinus, normal headache are some of the types of headache. Most headaches can be treated with some medication and neuro stimulator devices. This paper involves the usage of vibration by non-invasive method on the acupressure point of the human body which can relief the pain. The acupressure point is a pressure point, when used in a correct method will lead to decrease the level of pain. The vibration is provided by the motor vibrator and the frequency of the vibration is controlled by the arduino (Atmega 328). Frequency changes can be monitored by the pc. This vibration based treatment will effectively reduce the pain and also the device is cost effective and more comfortable to the patient.

A Fluid-Structure Interaction Model of Atherosclerosis at Abdominal Aorta

2012 ◽  
Author(s):  
M. A. Al-Rawi ◽  
A. M. Al-Jumaily ◽  
J. Lu ◽  
A. Lowe
Keyword(s):  
Abdominal Aorta ◽  
Brachial Artery ◽  
Arterial Wall ◽  
Interaction Model ◽  
Cost Effective ◽  
Non Invasive ◽  
Cfd Models ◽  
Invasive Method ◽  
Atherosclerosis Development ◽  
Stress Phase Angle

Atherosclerosis is a form of cardiovascular disease that is a major contributing factor to death and disability worldwide. This study uses computational fluid dynamics (CFD) models as a cost effective and non-invasive method to determine the location and condition of atherosclerosis segments on the arterial wall. It also investigates changes in the abdominal aorta geometry including the inner and outer diameters, the length of the disease segments and the thickness of the arterial wall on the development of disease. Three groups of unhealthy conditions are assumed with each group having eight cases, which are compared to the control case of healthy condition. An invasive catheter pulsatile blood flow is imposed at the ascending aorta and pressure waveforms data is imposed at the four outlets of the aorta and also used to validate the present models. The results show that the stress phase angle at the brachial artery could be correlated to the early stages of atherosclerosis development at the abdominal aorta. This can be detected by measured values of the systolic wall shear stress and elastic strain intensity which increases due to the forward pulse wave resulting from atherosclerosis, while the diastolic values of stresses decreases due to the delay of the backward waves which reach the brachial artery. The three scenarios of atherosclerosis show that the forward and backward waves, which can be attributed to changes in the diameter, length and thickness of the abdominal aorta, can be non-invasively used to diagnose cardiovascular diseases.

Relationship of indoor and outdoor air pollutants in a naturally ventilated historical building envelope

2011 ◽  
Vol 46 (7) ◽  
pp. 1460-1468 ◽  
Author(s):  
S. López-Aparicio ◽  
J. Smolík ◽  
L. Mašková ◽  
M. Součková ◽  
T. Grøntoft ◽  
...  
Keyword(s):  
Air Pollutants ◽  
Building Envelope ◽  
Outdoor Air ◽  
Historical Building ◽  
Relationship Of ◽  
Indoor And Outdoor

scholarly journals Respiratory Symptoms and Peak Flow Associated with Indoor and Outdoor Air Pollutants in the Southwest

1985 ◽  
Vol 35 (11) ◽  
pp. 1154-1158 ◽  
Author(s):  
Michael D. Lebowitz ◽  
Catharine J. Holberg ◽  
Barbara Boyer ◽  
Carl Hayes
Keyword(s):  
Air Pollutants ◽  
Respiratory Symptoms ◽  
Peak Flow ◽  
Outdoor Air ◽  
Indoor And Outdoor

scholarly journals Using a Microwave Sensor as an Online Indicator of Neurological Impairment during Surgical Procedures

2013 ◽  
Vol 543 ◽  
pp. 368-372 ◽  
Author(s):  
Jung H. Goh ◽  
Alex Mason ◽  
Mark Field ◽  
Paul Browning ◽  
Ahmed Al-Shamma'a
Keyword(s):  
Cost Effective ◽  
Neurological Impairment ◽  
Treatment Regimes ◽  
Non Invasive ◽  
Microwave Sensor ◽  
Wide Range ◽  
Invasive Method ◽  
Aortic Aneurysm Surgery ◽  
Online Methods

Lactate is known to be an indicator of neurological impairment during aortic aneurysm surgery. It is suggested that analysis of cerebrospinal fluid (CSF) removed during such surgery could provide useful information in this regard. Medical professionals find the prospect of online detection of such analytes exciting, as current practice is time consuming and leads to multiple invasive procedures. Advancing from the current laboratory based analysis techniques to online methods could provide the basis for improved treatment regimes, better quality of care, and enhanced resource efficiency within hospitals. Accordingly, this article considers the use of a low power microwave sensor to detect varying lactate concentrations. Microwave sensors provide a rapid non-invasive method of material analysis, which is robust, cost-effective, and has huge potential for a wide range of biomedical applications.

scholarly journals Ambient and household air pollution: complex triggers of disease

2014 ◽  
Vol 307 (4) ◽  
pp. H467-H476 ◽  
Author(s):  
Stephen A. Farmer ◽  
Timothy D. Nelin ◽  
Michael J. Falvo ◽  
Loren E. Wold
Keyword(s):  
Air Pollution ◽  
Health Effects ◽  
Air Pollutants ◽  
Epidemiological Studies ◽  
World Health ◽  
Outdoor Air ◽  
Rapid Urbanization ◽  
Adverse Health Effects ◽  
Adverse Health ◽  
Indoor And Outdoor

Concentrations of outdoor air pollution are on the rise, particularly due to rapid urbanization worldwide. Alternatively, poor ventilation, cigarette smoke, and other toxic chemicals contribute to rising concentrations of indoor air pollution. The World Health Organization recently reported that deaths attributable to indoor and outdoor air pollutant exposure are more than double what was originally documented. Epidemiological, clinical, and animal data have demonstrated a clear connection between rising concentrations of air pollution (both indoor and outdoor) and a host of adverse health effects. During the past five years, animal, clinical, and epidemiological studies have explored the adverse health effects associated with exposure to both indoor and outdoor air pollutants throughout the various stages of life. This review provides a summary of the detrimental effects of air pollution through examination of current animal, clinical, and epidemiological studies and exposure during three different periods: maternal (in utero), early life, and adulthood. Additionally, we recommend future lines of research while suggesting conceivable strategies to curb exposure to indoor and outdoor air pollutants.

scholarly journals A Biplot-Based PCA Approach to Study the Relations between Indoor and Outdoor Air Pollutants Using Case Study Buildings

Buildings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 218
Author(s):  
He Zhang ◽  
Ravi Srinivasan
Keyword(s):  
Relative Humidity ◽  
Air Pollutants ◽  
Quality Data ◽  
Outdoor Air ◽  
School Site ◽  
Outdoor Air Quality ◽  
Residential Unit ◽  
Air Quality Data ◽  
Indoor And Outdoor

The 24 h and 14-day relationship between indoor and outdoor PM2.5, PM10, NO2, relative humidity, and temperature were assessed for an elementary school (site 1), a laboratory (site 2), and a residential unit (site 3) in Gainesville city, Florida. The primary aim of this study was to introduce a biplot-based PCA approach to visualize and validate the correlation among indoor and outdoor air quality data. The Spearman coefficients showed a stronger correlation among these target environmental measurements on site 1 and site 2, while it showed a weaker correlation on site 3. The biplot-based PCA regression performed higher dependency for site 1 and site 2 (p < 0.001) when compared to the correlation values and showed a lower dependency for site 3. The results displayed a mismatch between the biplot-based PCA and correlation analysis for site 3. The method utilized in this paper can be implemented in studies and analyzes high volumes of multiple building environmental measurements along with optimized visualization.

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