Transport sector, which is made up of sub-sectors, that include roadways, railways, seaways, and airways contributes to ambient air pollution and poor air quality. This work focuses solely on road traffic-related air pollution in Africa. It reviews main pollutants and sources, and their impacts on health and the environment. It explores key driving factors, such as diverse transportation...
Besides homes, schools are primary environments for children.
The aims are fourfold: firstly, to assess the impact of indoor environmental quality IEQ on elementary school students by evaluating ventilation rates and thermal comfort, as well as the role of Heating, Ventilation, and Air Conditioning (HVAC) systems. Secondly, it aims to investigate school building practices related to cleaning,...
Introduction: A rising worry is the deterioration of outdoor air quality, especially in urban residential areas. The main topic of this work is the measurement of significant air pollutants outdoor at Ikere-Ekiti, Nigeria, such as CO2, NO2, O3, PM1, PM2.5, and PM10, as well as their correlation with the Air Quality Index (AQI). Research Question: This study's main research question is: What...
In developing countries, recycling of electrical and electronic waste (e-waste) has attracted much attention as a significant source of flame-retardants. In this study, ten air samples were collected in 2022 from five different locations to include an electronic waste dumpsite and control site in Lagos, Nigeria; to investigate the occurrence of a range of 7 congeners of Organophosphate Flame...
Processes controlling pollutant dispersion over complex terrain are much more complicated than over flat areas, as they are affected by atmospheric interactions with the orography at different spatial scales. In particular, thermally-driven daily-periodic winds produce circulation patterns and stability situations which are quite difficult to reproduce by numerical weather prediction models...
Already the name IoT tells us, that there are two basic components:
- Things represented by sensors and actuators and
- the Internet, allowing simple access to the system through graphical user interface elements like gauges and graphs for data display or buttons and sliders as control elements, accessible on the Internet.
This lecture describes the things part of...
Introduction and objectives: Air pollution is the contamination of the indoor or outdoor environment by any chemical, physical or biological agent that alters the natural characteristics of the atmosphere. Indeed, the concentration of the main pollutants has increased due to the scale of fossil fuel-consuming and polluting activities. Among these pollutants, fine particles (PM) represent a...
Numerous quarry operations in Southeastern Nigeria offer employment opportunities for the locals and generate income for the government. These businesses do, however, frequently cause air pollution, and the deadliest is PM2.5 which has been found to have a deleterious impact on humans and the ecosystem. The Extech Model VPC300 sensor was used to measure PM2.5, PM10, and some meteorological...
- Context: This is an Open Development and Education (ODE) study in Tanzania, funded by the UK Foreign, Commonwealth, and Development Office (FCDO). Tanzania educational system follows a 7-4-2-3 pattern.
- Importance of the study: The study emphasizes the significance of a conducive classroom environment, as inadequate ventilation and extreme temperatures can affect students' health and...
Air Pollution and Health Impacts
The onset of Covid-19 lock-downs support the fact that man-made activities greatly contribute to air pollution (Hammer et al. 2021). Exposure to major air pollutants such as particulate matter, ground-level ozone, NO2, SO2, CO, etc, is estimated to cause millions of deaths annually (Neira and Prüss-Ustün 2016; WHO 2023), and the burden is more pronounced in...
In the framework of the IoT4AQ project, investigations are being carried out to develop and popularize inexpensive and climate adapted monitors. Local parameters including dust concentration levels, weather data, communications systems, and electrical grids have been analysed. IoT components including LCD screens, LEDs, RTC modules, GPRS modules, microcontrollers (Arduino, Raspberry Pi, ESP32,...
In the framework of the IoT4AQ project, investigations are being carried out to develop inexpensive and climate adapted air quality monitor. Local parameters including dust concentration levels, weather data, mobile communications systems, and electrical grids have been analysed. Geolocation, data storage and autonomous operation options were studied. IoT components including LCD screens,...
The quality of life and human activities are significantly impacted by several elements, one of which is the weather and climatic patterns. To measure the weather parameters requires weather stations which are expensive. Hence, there is a need to develop low-cost weather stations to make comprehensive meteorological data monitoring easy to attain across the world. The aim of this project was...
Air pollution, notably the presence of particulate matter, poses substantial hazards to both human health and the natural environment. The current particulate matter monitoring systems suffer from a practical limitation that they can measure particulate matter concentrations at only a single spatial point. This limitation constrains the ability to comprehensively understand the dynamics of...
Informed knowledge on the distribution of dust particles and humidity variations across certain geographical location offers innumerable benefits to humanity. Such information could guide astronomers to make informed decision when locating or carrying out their optical observation; Medical professionals can monitor and predict trends in lung and cardiovascular related diseases, and other host...
The issue of air quality in Africa has emerged as a critical public health concern. Initial assessments conducted in major African urban centers reveal that fine particulate concentrations exceed the thresholds recommended by the World Health Organization (WHO). We developed two (2) mobile and fixed devices utilizing the Internet of Things (IoT) to detect areas with high PM2.5 particle...
Single and mixed nano-crystalline semiconductor oxides were obtained through wet-chemistry synthesis in form of powders. They were used as functional materials to produce metal oxide (MOX) thick film gas sensors to be used in air pollutants monitoring (i.e. carbon monoxide, nitrogen oxides, ozone and the total benzene, toluene, ethylbenzene, and xylene). Portable monitoring units based on...
This presentation will cover the basics of the use of satellite remote sensing for air quality applications, including advantages and limitations of satellite data with respect to other data sources, and discuss some opportunities for satellite data to be used together with and as a supplement for in-situ measurements with IoT-based Air Sensors.
In recent years, there is an increasing attention on air quality derived services for the final users. A dense grid of measures is needed to implement services such as conditional routing, mobility services, sustainability, alerting and data heatmaps for Dashboards in control room. Therefore, the challenge consists of providing high density data and services starting from scattered sensors...
There is a severe lack of air pollution data around the world. Low cost sensors (LCS) for measuring air pollution offer a possible path forward to remedy the lack of data, though they require careful calibration as the manufacturer-reported data often show large biases against reference monitors. Traditionally, calibration has occurred by co-locating LCS with local reference monitors and...
A brief overview of Clarity Movement's Sensing-as-a-Service air monitoring and IoT-based sensing and exploration of how the convergence of cost-effective distributed air monitoring technologies and multi-stakeholder collaborative strategies has paved the way for significant advancements in regional air quality management — including example case studies from around the world. Learn how Air...
Good air quality is critical to our health and well-being. Lack of air quality monitors, diverse pollution sources and unique weather patterns make air quality monitoring a difficult throughout Africa. Afri-SET, a new air quality sensors evaluation and training facility at the Department of Physics, University of Ghana is addressing these issues. The facility is evaluating low-cost sensors...
