Air pollution and pulmonary health: Effects of short-term indoor air quality intervention with portable air purifier

In Delhi, one of the world's most polluted cities, there is relatively little information on indoor air pollution and how it varies by socioeconomic status (SES). Using indoor air quality monitors (IAQMs), we find that winter levels of household air pollution exceed World Health Organization standards by more than 20 times in both high-and low-SES households. We then evaluate a field experiment that randomly assigned monthlong IAQM user trials across medium-and high-SES households but suffered from significant survey non-response. Among respondents, IAQMs did not affect take-up of subsidized air purifier rentals or other defensive behavior.

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IoT Based Automatic Air Pollution Monitoring and Purification System

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2021.38039 ◽

2021 ◽

Vol 9 (9) ◽

pp. 1378-1383

Author(s):

Manoj Gurung

Keyword(s):

Air Pollution ◽

Air Quality ◽

Indoor Air Quality ◽

Indoor Air ◽

Indoor Air Pollution ◽

Premature Mortality ◽

Cost Effective ◽

Pollution Monitoring ◽

Air Pollution Monitoring ◽

Air Purifier

Abstract: Degradation of air quality, like climate change and global warming, has become an all-encompassing existential hazard to humanity and natural life. Exposure to severely polluted air on a regular basis causes pulmonary disorders and contributes to severe allergies and asthma. According to studies, more than 10 million people die each year as a result of irregularities produced directly or indirectly by air pollution. The work of Lelieveld et al. [1] sheds light on the gravity of the problem. It is estimated that by 2050, the worldwide premature mortality from air pollution will exceed 6.6 million fatalities per year (358000 from ozone, the rest from PM 2.5) [1]. As a result, we decided to focus our study on improving indoor air quality. Despite the fact that there are numerous indoor air purifiers on the market, their cost belies their effectiveness, and the effective ones are far too expensive for working-class people to afford [2]. In order to address this issue, we created an automated Internet of Things (IoT) based air filtration system that uses an automated air purifier which is triggered when air quality falls below WHO criteria. Our initiative intends to improve indoor air quality by utilizing the most cost-effective and efficient modules available. Keywords: Indoor Air Pollution, Air Purifier, IAQ, Sharp Dust Sensor GP2Y1010AU0F, IoT, Particulate Matter (PM), HEPA Filter

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Effectiveness of Constructed Indoor Air Purifier to Enhance Indoor Air Quality

European Journal of Engineering Research and Science ◽

10.24018/ejers.2020.5.12.2262 ◽

2020 ◽

Vol 5 (12) ◽

pp. 61-66

Author(s):

Vinit J. Kedare ◽

Smruti S. Kharat ◽

Sonal Tawde

Keyword(s):

Air Pollution ◽

Air Quality ◽

Indoor Air Quality ◽

Indoor Air ◽

Indoor Dust ◽

Dust Particles ◽

Air Contamination ◽

Air Purifier ◽

Indoor Air Pollutants ◽

Working Efficiency

Air pollution is one of the most concerned issue worldwide as it affects the population at a time. Indoor air contamination can be due to different forms of allergens, smoke, mold, radon, and other pollutants all negatively impact the health of building occupants. These pollutants can have severe effects on health of individuals up to 10 times worse than the outdoor air pollution due to lack of ventilation. For purification of air an attempt has been made to construct a purifier using filters that can trap the indoor air pollutants. The prepared model is constructed considering the cost and working efficiency for maintaining a healthy indoor environment. The model is based on the filtration of air through compact filters (HEPA filters) that are more efficient than any other filters. To analyze the indoor air quality and the working efficiency of the purifier, certain quantitative analysis of the air micro-flora and the total mass concentration of the indoor dust were conducted at four locations in the premises of B. K. Birla College (Autonomous), Kalyan. Quality of the indoor air before using the Constructed Indoor Air purifier and during the use of purifier was checked. The resulted data showed a decrease in the microbial population as well as reduction in the concentration of dust particles, thus indicating the working efficiency of the constructed purifier.

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Comparison of the indoor air quality in an office operating with natural or mechanical ventilation using short-term intensive pollutant monitoring

Indoor and Built Environment ◽

10.1177/1420326x14530999 ◽

2014 ◽

Vol 24 (6) ◽

pp. 777-787 ◽

Cited By ~ 7

Author(s):

James F. Montgomery ◽

Stefan Storey ◽

Karen Bartlett

Keyword(s):

Mechanical Ventilation ◽

Air Quality ◽

Indoor Air Quality ◽

Indoor Air ◽

Short Term

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Effect of air purifier on indoor air quality and atopic dermatitis

Allergy Asthma & Respiratory Disease ◽

10.4168/aard.2013.1.3.248 ◽

2013 ◽

Vol 1 (3) ◽

pp. 248 ◽

Cited By ~ 5

Author(s):

Hyun Chul Park ◽

Young Hoon Kim ◽

Jeong Eun Kim ◽

Joo Yeon Ko ◽

Sun Ju Nam Goung ◽

...

Keyword(s):

Atopic Dermatitis ◽

Air Quality ◽

Indoor Air Quality ◽

Indoor Air ◽

Air Purifier

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Evaluasi Desain Bangunan Berdasarkan Sistem Sertifikasi DGNB (Studi Kasus : The Khabele School, Austin)

Arsitektura ◽

10.20961/arst.v19i2.47150 ◽

2021 ◽

Vol 19 (2) ◽

pp. 167

Author(s):

Dady Wicaksono ◽

Sugini Sugini

Keyword(s):

Air Pollution ◽

Air Quality ◽

Indoor Air Quality ◽

Indoor Air ◽

Rapid Development ◽

Empirical Studies ◽

Design Strategies ◽

Sustainable Building ◽

Pollution Problem ◽

Zero Carbon

The air pollution problem had become a big problem for many cities in the world. In line with the rapid development of these cities, the concept of sustainability also continues to develop with various solutions to overcome existing problems. To solve the air pollution problem, the authors evaluated the selected building object, The Khabele School, to see the extent of the building's contribution to overcoming the air pollution problem. The evaluation was carried out based on the DGNB (German Sustainable Building Council) certification system, the variables measured were biotope area factor (BAF), indoor air quality, daylight factor, and zero-carbon mobility. The results reveal that indoor air quality and daylight factors could meet the desired standards, while BAF and zero-carbon mobility had not met the standard. Based on theoretical and empirical studies, this paper discussed alternative design strategies, to improve the quality of the building, so that they can contribute more to overcoming air pollution problem.

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Association between Human Health and Indoor Air Pollution in Saudi Arabia: Indoor Environmental Quality Survey

Journal of Pharmaceutical Research International ◽

10.9734/jpri/2020/v32i3430965 ◽

2020 ◽

pp. 57-66

Author(s):

Mohd Saleem ◽

Mohd Adnan Kausar ◽

Fahmida Khatoon ◽

Sadaf Anwar ◽

Syed Monowar Alam Shahid ◽

...

Keyword(s):

Air Pollution ◽

Air Quality ◽

Indoor Air Quality ◽

Human Health ◽

Indoor Air ◽

Indoor Air Pollution ◽

Negative Impact ◽

Natural Light ◽

Common Symptom ◽

Indoor Environmental Quality

In many aspects of life quality, bio-contaminants and indoor air quality have had catastrophic consequences, including a negative impact on human health with an increased prevalence of allergic respiratory reactions, asthma, and infectious diseases. We aimed to evaluate the quality of indoor air environment and find out the association between human health and indoor air pollution and also to assess the physical health status of a group of Saudi and non-Saudi populations during this pandemic. Also, we aimed to assess the most common health condition or symptoms associated with ventilation. A questionnaire was distributed online to test indoor air quality, ventilation status, common signs and symptoms of any allergy or mental status and their relationship to certain variables. A total of 362 respondents were included. Before living in the current home, flu or Influenza and chapped lips were more prevalent than allergies and chapped lips signs while living in the current home. (12.2% , 10.8% vs. 18.5% , 13.55% before and after respectively) Multiple colds were the second most common symptom (10.2%). Hoarse voice and headaches were the least common symptoms experienced; each constituted 4.4%. During the COVID-19 Pandemic, most respondents wore a facemask, approximately 76.5%; and almost one-third of respondents had bright natural light inside the current home (43.1%). The presence of natural light within the current home was significantly associated with symptoms experienced during living in the current house (p<0.05). Natural sunlight exposure could decrease allergic symptoms and minor health problems associated with poor ventilation and air quality indoors. In current living homes, the majority of respondents never used air purifiers (72.9 percent). In order to get attention from people to enhance the quality and ventilation mechanism of indoor air, special care and awareness of the effects of the use of air purifiers on human health is needed.

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Effect of Air Purifier Use in the Classrooms on Indoor Air Quality—Case Study

Atmosphere ◽

10.3390/atmos12121606 ◽

2021 ◽

Vol 12 (12) ◽

pp. 1606

Author(s):

Małgorzata Basińska ◽

Michał Michałkiewicz ◽

Katarzyna Ratajczak

Keyword(s):

Particulate Matter ◽

Air Quality ◽

Indoor Air Quality ◽

Indoor Air ◽

Air Purification ◽

Portable Devices ◽

Microscopic Fungi ◽

Before And After ◽

Air Purifier ◽

High Level

Dissatisfaction with indoor air quality is common even in relatively new or renovated Polish school buildings. To improve air quality in educational buildings, portable devices have seen increased use, for which manufacturers guarantee a high level of indoor air purification. However, their optimized operation largely depends on their correct use. The aim of this article was to determine the effectiveness of air purification in a primary school using an air purification device with an analysis of the classroom indoor air quality (IAQ). Two criteria were used, microbiological and particulate matter concentration. Measurements were made before device installation and during its continuous operation, and before and after lessons on chosen days. Measurements related to IAQ did not detect clear differences in the analyzed measurement periods. For microbiological contamination, in the morning before lessons, the total count for all bacteria and microscopic fungi was definitely lower than after lessons. Comparing the periods before and after device installation, no clear tendency for reducing the bacteria count or microscopic fungi occurred during air purifier operation, nor was there any noticeable trend in the reduction of particulate matter. There was no improvement in air quality in the classrooms during the operation of the purification devices.

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