Corrigendum to “Application of the compact and useful PM2.5 instrument with gas sensors (CUPI-G) for high temporal and spatial resolution monitoring with weather factor integration” (Science of the Total Environment (2025) 979, (S0048969725009970), (10.1016/j.scitotenv.2025.179361))

Abstract

The authors regret to inform that the article contained several errors and apologise for the inconvenience caused. The correct text underlined italics replace the corresponding information. 2.1 Design and functionality of a low-cost air quality monitoring device The CUPI-G uses a passive sampling system, relying on natural convection to draw ambient air across the sensors. The instrument housing features three in/outlets to allow air to flow into the device, and to avoid direct sunlight, it was installed under the roof. The CUPI-G incorporates several features to mitigate the impact of environmental factors on sensor performance. The device itself is a compact box measuring 30 cm in height, 21 cm in length, and 18 cm in width, with a weight of around 5 kg. 2.2 CUPI-G validation Based on Nakayama et al. (2018), the PM<inf>2.5</inf> concentration was estimated by applying a correction factor of 1.3 to the output of the PM<inf>2.5</inf> sensor. Therefore, its evaluation for PM<inf>2.5</inf> in Japan was not conducted in this study. [Table Presented] 4. Conclusion The CO concentrations near roadways were 188 ppb (0.188 ppm). This value is substantially below the Japanese standard (daily average for hourly values ≤ 10 ppm), indicating that the measured CO concentrations near roadways were well within regulatory limits. References Weather- meteoblue, 2023. A Windy.com Company. https://www.meteoblue.com/en/weather/week/kyoto. He, J., Huang, C.H., Yuan, N., Austin, E., Seto, E., Novosselov, I., 2022. Network of low-cost air quality sensors for monitoring indoor, outdoor, and personal PM<inf>2.5</inf> exposure in Seattle during the 2020 wildfire season. Atmos. Environ. 285, 1352–2310. https://doi.org/10.1016/j.atmosenv.2022.119244. Venkatraman Jagatha, J., Klausnitzer, A., Chac´on-Mateos, M., Laquai, B., Nieuwkoop, E., Van Der Mark, P., Vogt, U., Schneider, C., 2021. Calibration Method for Particulate Matter Low-Cost Sensors Used in Ambient Air Quality Monitoring and Research. Sensors 21. https://www.mdpi.com/1424-8220/21/12/3960. https://doi.org/10.3390/s21123960. Williams, D.E., 2020. Electrochemical sensors for environmental gas analysis. Current Opinion in Electrochemistry 22, 145–153. https://www.sciencedirect.com/science/article/pii/S2451910320301307. https://doi.org/10.1016/j.coelec.2020.06.006. The authors would like to apologise for any inconvenience caused and confirm that these changes do not affect the results of the study.