# Temporal Variations Dataset for Indoor Environmental Parameters in Northern Saudi Arabia
## 2 Related Work
Using data analysis tools, such as statistical models and machine learning algorithms, can facilitate the identification of patterns and trends within the data. This, in turn, can enable the implementation of effective interventions aimed at improving indoor air quality. \begin{table}
\begin{tabular}{c c c c} \hline \hline
**Research Study** & **Year** & **Parameters Measured** & **City of Measurement** \\ \hline
[14] & 2012 & Thermal, air quality, lighting/visual, and acoustic measurements & USA \\ \hline
[17] & 2012 & Air temperature, mean radiant temperature, relative humidity, air velocity, & China \\  & CO\({}_{2}\), illumination intensity, sound pressure levels & China \\ \hline
[18] & 2012 & PM10, PM2.5, PM1 and CO concentrations & India \\ \hline
[19] & 2014 & CO\({}_{2}\) concentration, relative humidity & Canada \\ \hline
[20] & 2014 & Carbon dioxide (CO\({}_{2}\)), temperature, relative humidity (RH), wind speed, & Brazil \\  & viable mold, and airborne dust levels. & Brazil \\ \hline
[21] & 2015 & Thermal environment, indoor air quality, visual and acoustic environment & China \\ \hline
[22] & 2018 & Air temperature, relative humidity, mean radiant temperature, air velocity, & Ireland \\  & illumination, CO\({}_{2}\), and noise level PMV—PPD & Ireland \\ \hline
[23] & 2018 & Air freshness, air cleanliness, humidity, natural lighting, acoustic environment & China \\ \hline
[24] & 2018 & Thermal comfort, lighting, acoustics, ergonomics, cleaning, air quality & Brazil \\ \hline
[25] & 2018 & CO\({}_{2}\), PM2.5, energy consumption & China \\ \hline
[18] & 2019 & Sound level, air velocity, radiant temperature, air temperature, illuminance, & Canada \\  & relative humidity & Canada \\ \hline
[26] & 2019 & Layout, air quality, thermal comfort, lighting, and acoustic environment & China \\ \hline
[27] & 2019 & Air temperature, relative humidity, CO\({}_{2}\), PM2.5, illuminance & China \\ \hline
[28] & 2019 & Carbon dioxide (CO\({}_{2}\)) & China \\ \hline
[29] & 2020 & Temperature and concentrations of formaldehyde, VOC, CO\({}_{2}\), and PM2.5 & China \\ \hline
[30] & 2021 & Temperature, relative humidity, PM2.5, PM10, CO\({}_{2}\), CO, formaldehyde & Beijing, China \\ \hline
[31] & 2022 & Temperature, humidity, PM1.0, PM2.5, PM10, and CO\({}_{2}\) & Republic of Korea \\ \hline
[32] & 2022 & Timestamp, indoor temperature, and relative humidity & USA \\ \hline Our Dataset (NorthSaudi) & 2023 & Temperature, humidity, pressure, altitude, light, and timestamps & Northern Saudi Arabia \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Some indoor environmental-related research. Figure 1: Number of publications in 10 years. The previous table illustrates that the studies were conducted in various cities and regions worldwide, emphasizing the importance of collecting indoor environmental parameters. These studies have shown that various factors, including outdoor air pollution, building materials, ventilation rates, and human activities, can influence indoor air quality. Through collecting and analyzing indoor environmental parameters, building managers and policymakers may develop successful strategies to enhance indoor air quality and preserve the well-being of building residents. An interesting dataset is generated by the authors of [32] that consists of timestamps, temperature, and humidity, including 4,164,267 records spanning over two months in Columbia, USA. A total of 12 sensors were installed within the laboratory to measure the temperature and humidity levels accurately. A dataset was produced to support Internet of Things (IoT) researchers. Machine learning algorithms were used to create and evaluate the models. Aside from the previous table, there is some related research related to Saudi Arabia's environmental measures, such as [33; 34]. Both papers proved the importance of country-specific environmental parameters in different fields. Table 2 shows different environmental datasets that are available to the public. However, none of them are related to Saudi Arabia's environment.