Analysis of the Impact of Human Activities on Indoor Air Quality with Internet of Things Based e-Nose (original) (raw)

Real-Time Monitoring of Indoor Air Quality with Internet of Things-Based E-Nose

Applied Sciences, 2019

Today, air pollution is the biggest environmental health problem in the world. Air pollution leads to adverse effects on human health, climate and ecosystems. Air is contaminated by toxic gases released by industry, vehicle emissions and the increased concentration of harmful gases and particulate matter in the atmosphere. Air pollution can cause many serious health problems such as respiratory, cardiovascular and skin diseases in humans. Nowadays, where air pollution has become the largest environmental health risk, the interest in monitoring air quality is increasing. Recently, mobile technologies, especially the Internet of Things, data and machine learning technologies have a positive impact on the way we manage our health. With the production of IoT-based portable air quality measuring devices and their widespread use, people can monitor the air quality in their living areas instantly. In this study, e-nose, a real-time mobile air quality monitoring system with various air para...

Editorial: Indoor environmental air quality in urban areas

Frontiers in environmental science, 2024

Indoor air quality plays an increasingly important role in the modern world, especially in urban areas . This is due to usually limited access to green areas in towns and a growing number of activities that take place mainly indoors . It forces people to spend most of their time in various types of indoor environments (i.e., residential houses, apartments, offices, schools, kindergartens, hospitals, churches, museums, libraries, shopping centers, gyms, fitness centers, swimming pools, cafes, restaurants, etc.) . Therefore, human exposure to indoor contaminants has become a more and more important factor influencing people's health, especially in the case of children and older people, who can often spend entire days in their homes. Additionally, in extraordinary situations such as the COVID-19 pandemic, governments widely implemented stay-at-home orders to minimize the risk of disease transmission and, by the same, protect public health . Dense urban development (high share of multi-family buildings, blocks of flats, and skyscrapers in comparison to traditional outskirts with single-family buildings) and high occupational density, which manifests with reduced distance between people, rises the risk of unwanted exposure to pollution generated by others (bacteria, viruses, fungi, cigarette smoke, etc.) . High center street traffic due to a lack of ring roads, industrial objects located close to dwelling areas, and combustion of wrong quality fuels cause, in addition to the residential sector, increased outdoor air pollution-especially respirable particles, carcinogenic substances, and nitrogen oxide. All these substances infiltrate in part into buildings, raising concentration of contaminants indoors. The vital problem that arises in modern cities is increased street noise, which reduces people's wellbeing or even influences their mental health when opening windows to ventilate rooms. In big cities with little greenery, urban heat islands tend to appear in hot months, increasing overall air temperatures by a few degrees. It leads to an increase indoor temperature, powering emissions of pollutants from building materials due to more intensive evaporation (for example, formaldehyde and other volatile organic compounds) and worsening human thermal comfort.