Application of k-means and hierarchical clustering techniques for analysis of air pollution: A review (1980–2019)

P Govender, V Sivakumar - Atmospheric pollution research, 2020 - Elsevier
Clustering is an explorative data analysis technique used for investigating the underlying
structure in the data. It described as the grouping of objects, where the objects share similar …

Development of an IoT‐based indoor air quality monitoring platform

JH Jo, BW Jo, JH Kim, SJ Kim, WY Han - Journal of Sensors, 2020 - Wiley Online Library
In this paper, an IoT‐based indoor air quality monitoring platform, consisting of an air quality‐
sensing device called “Smart‐Air” and a web server, is demonstrated. This platform relies on …

Spatial assessment of air quality patterns in Malaysia using multivariate analysis

D Dominick, H Juahir, MT Latif, SM Zain… - Atmospheric environment, 2012 - Elsevier
This study aims to investigate possible sources of air pollutants and the spatial patterns
within the eight selected Malaysian air monitoring stations based on a two-year database …

Prediction of the level of air pollution using principal component analysis and artificial neural network techniques: A case study in Malaysia

A Azid, H Juahir, ME Toriman, MKA Kamarudin… - Water, Air, & Soil …, 2014 - Springer
This study focused on the pattern recognition of Malaysian air quality based on the data
obtained from the Malaysian Department of Environment (DOE). Eight air quality parameters …

Optimal design of air quality monitoring networks: a systematic review

S Verghese, AK Nema - Stochastic Environmental Research and Risk …, 2022 - Springer
The optimal design of air quality monitoring network draws significant attention due to the
severity associated with air pollution and constraints involved with the installation and …

Investigating the relationship between air pollution variation and urban form

C Li, Z Wang, B Li, ZR Peng, Q Fu - Building and Environment, 2019 - Elsevier
Air quality in megacities and its correlation with urban form have become a priority, since
numerous cities worldwide are encountering a development bottleneck due to air pollution …

Geographically weighted principal component analysis for characterising the spatial heterogeneity and connectivity of soil heavy metals in Kumasi, Ghana

EN Aidoo, SK Appiah, GE Awashie, A Boateng… - Heliyon, 2021 - cell.com
The use of principal component analysis (PCA) for soil heavy metals characterization
provides useful information for decision making and policies regarding the potential sources …

Prediction of PM2. 5 concentration based on the similarity in air quality monitoring network

M Li, W Wang, Z Wang, Y Xue - Building and Environment, 2018 - Elsevier
Recently particulate matter pollution has becoming more and more serious in China and
plenty of equipment has been purchased to detect it in air quality monitoring network. But it …

Chemical composition of rainwater in an urban area of the southeast of Brazil

EH Martins, DC Nogarotto, J Mortatti… - Atmospheric Pollution …, 2019 - Elsevier
In the city of Limeira, located in the State of São Paulo, Brazil, the major ions of 30 rainwater
samples, collected from Sep/2013 to Mar/2014, were quantified by ionic chromatography …

Using a distributed air sensor network to investigate the spatiotemporal patterns of PM2. 5 concentrations

R Cao, B Li, Z Wang, ZR Peng, S Tao, S Lou - Environmental pollution, 2020 - Elsevier
Spatiotemporal variations in PM 2.5 are a key factor affecting personal pollution exposure
levels in urban areas. However, fixed-site monitoring stations are so sparsely distributed that …